Lexmark C748 User's Guide
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- Lexmark C748 | User's Guide - Page 1
C746x and C748x User's Guide April 2012 Machine type(s): 5026 Model(s): 310, 330, 510, 530 www.lexmark.com - Lexmark C748 | User's Guide - Page 2
33 Setting up the printer software...34 Installing the printer software ...34 Updating available options in the printer driver 34 Networking...35 Preparing to set up the printer on a wireless network 35 Installing the printer on a wireless network (Windows 36 Installing the printer on a wireless - Lexmark C748 | User's Guide - Page 3
network setup page...72 Checking the status of parts and supplies ...72 Saving energy...73 Restoring factory default settings...75 Securing the printer ...76 Using C748x 80 Learning about the printer...80 Selecting a location for the printer ...80 Printer configurations ...81 Using the touch‑screen - Lexmark C748 | User's Guide - Page 4
a menu settings page ...114 Printing a network setup page...114 Checking the status of parts and supplies ...114 Saving energy...115 Restoring factory default settings...118 Securing the printer ...118 Paper and specialty media guidelines 123 Using specialty media...123 Tips on using letterhead - Lexmark C748 | User's Guide - Page 5
PostScript menu...181 PCL Emul menu ...182 HTML menu ...184 Image menu ...185 Help menu...186 Saving money and the environment 187 Saving paper and toner...187 Using recycled paper ...187 - Lexmark C748 | User's Guide - Page 6
188 Maintaining the printer 189 Ordering parts and supplies...189 Ordering a toner cartridge...189 Ordering a photoconductor ...189 Ordering a fuser or a transfer module...190 Ordering a waste toner bottle ...190 Using genuine Lexmark parts and supplies 190 Storing supplies...191 Replacing parts - Lexmark C748 | User's Guide - Page 7
220 Unsupported disk...220 31.xx Missing or defective [color] cartridge 220 32.xx [Color] cartridge part number unsupported by device 220 34 Incorrect paper size, open [paper source 221 35 Insufficient memory to support Resource Save feature 221 36 Printer service required ...221 37 Insufficient - Lexmark C748 | User's Guide - Page 8
...227 82.xx Replace waste toner bottle ...227 82.xx Waste toner bottle missing ...227 83.xx Transfer module life warning ...228 83.xx Transfer module missing ...228 83.xx Replace transfer module ...228 83.xx Transfer module near life warning ...228 84.xx [Color] photoconductor nearly low ...228 84 - Lexmark C748 | User's Guide - Page 9
feed problems...237 Paper frequently jams...237 Paper jam message remains after jam is cleared 238 Jammed pages are not reprinted...238 Solving print quality problems...239 Characters have jagged or uneven edges ...239 Clipped ...243 Printer is printing blank pages ...244 Repeating defects appear on - Lexmark C748 | User's Guide - Page 10
Contents 10 Check the network connection...254 Check the address entered in the Web browser 254 Temporarily disable Web proxy servers ...254 Contacting customer support...254 Notices...255 Product information...255 Edition notice...255 Power consumption...260 Index...267 - Lexmark C748 | User's Guide - Page 11
CAUTION-POTENTIAL INJURY: This product uses a laser. Use of controls or adjustments or the manufacturer's instructions and local regulations. CAUTION-HOT SURFACE: The inside of the printer might be such problems. Remove the power cord from the electrical outlet before inspecting it. Refer service or - Lexmark C748 | User's Guide - Page 12
. You must use either a printer stand or printer base if you are using a printer (MFP) that scans, copies, and faxes, you may need additional furniture. For more information, see www.lexmark .com/multifunctionprinters. CAUTION-POTENTIAL INJURY: To reduce the risk of equipment instability, load - Lexmark C748 | User's Guide - Page 13
the printer • Troubleshooting and solving problems User's Guide-The User's Guide is available on the Software and Documentation CD. For updates, check our Web site at http://support.lexmark.com. Instructions for: Networking Guide-Open the Software and • Installing the printer using Guided or - Lexmark C748 | User's Guide - Page 14
support: • Documentation • Driver downloads • Live chat support • E‑mail support • Voice support Warranty information Find it here Lexmark Support Web site- http://support.lexmark and at the back of the printer), and have it ready when you contact customer support so that they may serve you faster - Lexmark C748 | User's Guide - Page 15
IPDS - PrintCryptionTM • Printer hard disk • LexmarkTM Internal Solutions Ports (ISP) - RS‑232‑C Serial ISP - Parallel 1284‑B ISP - MarkNetTM N8250 802.11 b/g/n Wireless ISP - MarkNet N8130 10/100 Fiber ISP - MarkNet N8120 10/100/1000 Ethernet ISP Note: An external kit is needed to support the ISP. - Lexmark C748 | User's Guide - Page 16
system board CAUTION-SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the wall outlet before continuing. If you have any other devices attached to the - Lexmark C748 | User's Guide - Page 17
are easily damaged by static electricity. Touch something metal on the printer before touching any system board electronic components or connectors. 1 5 43 2 1 Firmware and flash memory card connectors 2 Printer hard disk connector 3 Internal print server connector 4 Memory card connector - Lexmark C748 | User's Guide - Page 18
memory card CAUTION-SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug the power cord from the wall outlet before continuing. If you have any other devices attached to the - Lexmark C748 | User's Guide - Page 19
Additional printer setup 19 An optional memory card can be purchased separately and attached to the system board. 1 Access the system board. For more information, see "Accessing - Lexmark C748 | User's Guide - Page 20
flash memory or firmware card. Only one of each may be installed, but the connectors are interchangeable. CAUTION-SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug - Lexmark C748 | User's Guide - Page 21
be flush against the system board. 5 Reattach the system board cover. Note: When the printer software and any options are installed, it may be necessary to manually add the options in the printer driver to make them available for print jobs. For more information, see "Updating available options in - Lexmark C748 | User's Guide - Page 22
Internal Solutions Port The system board supports one optional Lexmark Internal Solutions Port (ISP). CAUTION-SHOCK HAZARD: If you are accessing the system board or installing optional hardware or memory devices sometime after setting up the printer, then turn the printer off, and unplug the power - Lexmark C748 | User's Guide - Page 23
on the system board where the posts of the plastic tee will be aligned. Note: If an optional printer hard disk is currently installed, then remove it first. For more information, see "Removing a printer hard disk" on page 30. 4 Remove the screws, and then remove the metal cover from the ISP opening - Lexmark C748 | User's Guide - Page 24
Additional printer setup 24 5 Attach the ISP solution to the system board. a Align the posts of the plastic tee to the holes on the system board. b Hold the edges of the ISP and guide it to the opening on the system board cage, and then gently allow it to rest on the plastic - Lexmark C748 | User's Guide - Page 25
system board cage using the two screws. 8 Reattach the system board cover. Note: If you have removed an optional printer hard disk while installing the Internal Solutions Port, then reinstall the printer hard disk first before reattaching the system board cover. For more information, see "Installing - Lexmark C748 | User's Guide - Page 26
1 Access the system board. For more information, see "Accessing the system board" on page 16. Note: This task requires a flathead screwdriver. 2 Unpack the printer hard disk. 3 Locate the appropriate holes on the system board where the posts of the plastic tee will be aligned. Note: If an optional - Lexmark C748 | User's Guide - Page 27
onto the ISP: 1 Hold the edges of the printed circuit board assembly, and then align the standoffs of the printer hard disk to the holes in the ISP. 2 Press down on the printer hard disk until the standoffs are in place. Warning-Potential Damage: Do not press on the center of the - Lexmark C748 | User's Guide - Page 28
system board: a Hold the edges of the printed circuit board assembly, and then align the standoffs of the printer hard disk to the holes in the system board. Press down on the printer hard disk until the standoffs are in place. Warning-Potential Damage: Do not press on the center of the - Lexmark C748 | User's Guide - Page 29
Additional printer setup 29 4 Reattach the system board cover. - Lexmark C748 | User's Guide - Page 30
hard disk Warning-Potential Damage: System board electronic components are easily damaged by static electricity. Touch something metal on the printer before touching any system board electronic components or connectors. 1 Access the system board. For more information, see "Accessing the system - Lexmark C748 | User's Guide - Page 31
a multifunction printer (MFP) that scans, copies, and faxes, you may need additional furniture. For more information, see www.lexmark.com/multifunctionprinters 000‑sheet high‑capacity feeder • Optional 550-sheet drawer • Optional 550-sheet specialty media drawer • Printer For information on - Lexmark C748 | User's Guide - Page 32
an input option, or more than one input option. If you purchased a multifunction printer (MFP) that scans, copies, and faxes, you may need additional furniture. For more information, see www.lexmark.com/multifunctionprinters. 1 Unpack the optional drawer, and then remove all packing material. Note - Lexmark C748 | User's Guide - Page 33
2,000‑sheet high‑capacity feeder 5 Turn the printer back on. Attaching cables CAUTION-POTENTIAL INJURY: Do not set up this product or make any electrical or cabling connections, such as a power cord, a fax feature, or USB cable, during a lightning storm. Connect the printer to the computer using - Lexmark C748 | User's Guide - Page 34
1 Go to the Lexmark Web site at http://support.lexmark.com. 2 Navigate to: SUPPORT & DOWNLOADS > select your printer > select your operating system 3 Download the printer driver, and then install the printer software. Updating available options in the printer driver When the printer software and any - Lexmark C748 | User's Guide - Page 35
Printer or manually add any installed hardware options under Configuration Options. 6 Click Apply. For Macintosh users In Mac OS X version 10.5 or later 1 From the Apple menu, navigate to: System Preferences > Print & Fax > select your printer > Options & Supplies > Driver defaults to automatic - Lexmark C748 | User's Guide - Page 36
type • 802.1X user name and password • Certificates Note: For more information on configuring 802.1X security, see the Networking Guide on the Software and Documentation CD. Installing the printer on a wireless network (Windows) Before installing the printer on a wireless network, make sure: • Your - Lexmark C748 | User's Guide - Page 37
the printer is configured, the software will instruct you to disconnect the temporary USB cable so you can print wirelessly. 7 Follow the instructions on the computer screen. Note: For more information on allowing other computers on the network to use the wireless printer, see the Networking Guide. - Lexmark C748 | User's Guide - Page 38
> Network Setup Page b In the Standard Network Card section, look for UAA (MAC). Note: You will need this information later. Enter the printer information 1 Access the AirPort options: In Mac OS X version 10.5 or later From the Apple menu, navigate to: System Preferences > Network > AirPort - Lexmark C748 | User's Guide - Page 39
CD, and then double‑click the installer package for the printer. b Follow the instructions on the computer screen. c Select a destination, and then click Continue. d From the Easy Install screen, click Install. e Type the user password, and then click OK. All necessary applications are installed in - Lexmark C748 | User's Guide - Page 40
These instructions apply to Ethernet and fiber optic network connections. Note: Make sure you have completed the initial setup of the printer. For Windows users 1 Insert the Software and Documentation CD. If the installation screen does not appear after a minute, then launch the CD manually: a Click - Lexmark C748 | User's Guide - Page 41
on a different subnet than the printer. 3 Install the printer drivers, and then add the printer. a Install a printer driver file on the computer: 1 Insert the Software and Documentation CD, and then double‑click the installer package for the printer. 2 Follow the instructions on the computer screen - Lexmark C748 | User's Guide - Page 42
more information, contact your system support person. Changing port settings after installing a new network Internal Solutions Port When a new Lexmark Internal Solutions Port (ISP) is installed in the printer, the printer configurations on computers that access the printer must be updated since the - Lexmark C748 | User's Guide - Page 43
to: AppleTalk > select the printer from the list > Add In Mac OS X version 10.4 1 From the Finder, navigate to: Applications > Utilities 2 Double‑click Printer Setup Utility or Print Center. 3 From the Printer List, click Add. 4 Click the Default Browser tab > More Printers. 5 From the first pop - Lexmark C748 | User's Guide - Page 44
is set up correctly by printing the following: • Menu settings page-Use this page to verify that all printer options are installed correctly. A list of installed options appears toward the bottom of the page. If an option you installed is not listed, then it - Lexmark C748 | User's Guide - Page 45
or the CEN Technical Committee 156 standard. • Provide a flat, sturdy, and stable surface. • Keep the printer: - Clean, dry, and free of dust. - Away from stray staples and paper clips. - Away from the direct airflow of air conditioners, heaters, or ventilators. - Free from direct sunlight and - Lexmark C748 | User's Guide - Page 46
furniture. For more information, see www.lexmark.com/multifunctionprinters. You can configure your basic printer by adding up to three 550‑sheet optional drawers and a 2,000‑sheet high‑capacity feeder. A caster base and a spacer are supported in any configurations. Spacers are nonfunctional trays - Lexmark C748 | User's Guide - Page 47
in pulsing pattern. The following actions wake the printer from Sleep mode: • Pressing any hard button • Opening Tray 1 or loading paper in the multipurpose feeder • Opening a door or cover • Sending a print job from the computer • Performing a power‑on reset with the main power switch • Attaching - Lexmark C748 | User's Guide - Page 48
‑defined setting that lets you print on paper sizes that are not preset in the printer menus. Notes: • The smallest supported Universal size is 76.2 x 127 mm (3 x 5 in.) and is loaded only in the multipurpose feeder. • The largest supported Universal size is 215.9 x 1219.2 mm (8.5 x 48 in.) and is - Lexmark C748 | User's Guide - Page 49
• Do not remove trays while a job prints or while Busy appears on the printer display. Doing so may cause a jam. • The standard 550‑sheet tray ( the paper size. 2 Squeeze and slide the width guide to the correct position for the paper size you are loading. Notes: • Use the paper size indicators at - Lexmark C748 | User's Guide - Page 50
C746x 50 3 Squeeze and slide the length guide to the correct position for the paper size you are loading. Notes: • For some paper sizes like letter, legal, and A4, squeeze and slide the length guide backward to accommodate their length. • The length guide has a locking device. To unlock, slide to - Lexmark C748 | User's Guide - Page 51
the edges on a level surface. 5 Load the paper stack with the recommended printable side faceup. Notes: • When loading preprinted letterhead for one‑sided printing, place the the tray can cause paper jams and possible printer damage. 6 Insert the tray. Note: For some paper sizes, the tray will - Lexmark C748 | User's Guide - Page 52
tray (Tray 2), unlike any other trays, supports narrow paper sizes such as envelopes and A6. 2 1 3 4 1 Primary length guide 2 Length guide lock 3 Secondary length guide 4 Width guide CAUTION-POTENTIAL INJURY: To reduce the risk of equipment instability, load each paper drawer or tray separately - Lexmark C748 | User's Guide - Page 53
Notes: • For instructions on loading paper sizes larger than A6 and envelopes, see "Loading the standard or an optional 550‑sheet tray" on page 49. • For a complete list of supported paper sizes, see the "Supported paper sizes, types, and weights" section in the User's Guide. Loading narrow paper - Lexmark C748 | User's Guide - Page 54
Using C746x 54 1 2 3 3 Squeeze and slide the width guide to the correct position for the paper size you are loading. 1 2 Note: Use the paper size indicators at the bottom of the tray to help position the width guide. - Lexmark C748 | User's Guide - Page 55
Using C746x 55 4 Squeeze and slide the secondary length guide to the correct position for the paper size you are loading. 1 2 - Lexmark C748 | User's Guide - Page 56
stack with the recommended printable side faceup. Notes: • Load envelopes with the stamp side entering the printer first. • Make sure the paper does not exceed the maximum paper fill indicator located on the side of the width guide. Warning-Potential Damage: Overloading the tray can cause paper - Lexmark C748 | User's Guide - Page 57
long papers such as legal, letter, and A4. Squeeze and slide the guide until it clicks into place. Loading the 2,000‑sheet high‑capacity feeder CAUTION-POTENTIAL INJURY: To reduce the risk of equipment instability, load each paper drawer or tray separately. Keep all other drawers or trays closed - Lexmark C748 | User's Guide - Page 58
Using C746x 58 3 Push the length guide button to the right to unlock the length guide. 4 Push the length guide release latch to raise the length guide. Slide the guide to the correct position for the paper size you are loading, and then lock the guide. - Lexmark C748 | User's Guide - Page 59
to loosen them. Do not fold or crease the paper. Straighten the edges on a level surface. 6 Load the paper stack: • Printable side faceup for one‑sided printing • Printable side facedown for two‑sided printing Damage: Overloading the tray may cause paper jams and possible printer damage. - Lexmark C748 | User's Guide - Page 60
tray. Loading the multipurpose feeder The multipurpose feeder can hold approximately: • 100 sheets of 75‑g/m2 (20‑lb) paper • 10 envelopes • 75 transparencies Note: Do not add or remove paper or specialty media while the printer prints from the multipurpose feeder or when the printer control panel - Lexmark C748 | User's Guide - Page 61
2 Tray release latch 3 Paper release lever 4 Paper size indicators 5 Paper width guide 6 Width guide release tab LTAR4&LGL BE5XEC A5 3 2 1 1 Press the tray release latch to the left, and then pull the multipurpose feeder down. 2 Gently pull the extension out until it is fully extended. 3 Flex - Lexmark C748 | User's Guide - Page 62
too far into the multipurpose feeder, then press the paper release lever to remove it. • Load envelopes with the flap on the right side and the stamp edge entering the printer first. Warning-Potential Damage: Never use envelopes with stamps, clasps, snaps, windows, coated linings, or self‑stick - Lexmark C748 | User's Guide - Page 63
any trays are the same, the printer will link those trays. When one linked tray becomes empty, paper will feed from the next linked tray. It is Damage: The paper loaded in the tray should match the paper type name assigned in the printer. The temperature of the fuser varies according to the - Lexmark C748 | User's Guide - Page 64
types loaded into the printer. 1 Open a Web browser, and then type the printer IP address in the address field. Notes: • View the printer IP address Note: Plain Paper is the factory default paper type for all user‑defined custom names. Configuring a custom name If the printer is on a network, then - Lexmark C748 | User's Guide - Page 65
adjust the settings if necessary. Note: To print on a specific paper type, adjust the paper type setting to match the paper loaded, or select the appropriate tray or feeder. 3 Click Print. Printing in black and white From the printer control panel, navigate to: > Settings > Settings > Print Settings - Lexmark C748 | User's Guide - Page 66
Max Yield settings let you choose between a faster print speed or a higher toner yield. Max Yield is the factory default setting. • Max Speed-This lets you print in either black or color depending on what is set in the printer driver. The printer prints in color unless Black Only is selected in the - Lexmark C748 | User's Guide - Page 67
from a flash drive Printing from a flash drive Notes: • Before printing an encrypted PDF file, you will be prompted to enter the file password from the printer control panel. • You cannot print files for which you do not have printing permissions. 1 Insert a flash drive into the USB port. Notes - Lexmark C748 | User's Guide - Page 68
until the document has finished printing. • If you leave the flash drive in the printer after leaving the initial USB menu screen, then you can still print files from the flash drive as held jobs. Supported flash drives and file types Flash drive File type • Lexar JumpDrive 2.0 Pro (256MB, 512MB - Lexmark C748 | User's Guide - Page 69
printing. Repeat and Reserve jobs are held in the printer until you choose to delete them. For Windows users 1 With a document open, click File For a confidential print job, also enter a four‑digit PIN. 5 Click OK or Print. 6 From the printer control panel, release the print job. • For confidential - Lexmark C748 | User's Guide - Page 70
job type (Confidential, Repeat, Reserve, or Verify), and then assign a user name. For a confidential print job, also enter a four‑digit PIN. 4 Click OK or Print. 5 From the printer control panel, release the print job: • For confidential print jobs, navigate to: Held jobs > select your user name - Lexmark C748 | User's Guide - Page 71
Center or Printer Setup Utility. 3 Double‑click the printer icon. 4 From the printer window, select the Guide on the Lexmark Web site at http://support.lexmark.com. Checking the virtual display 1 Open a Web browser, and then type the printer IP address in the address field. Notes: • View the printer - Lexmark C748 | User's Guide - Page 72
. Settings saved from the menus replace the factory default settings as user default settings. A user default setting remains in effect until you access the menu again, select another value, and save it. Printing a network setup page If the printer is attached to a network, then print a network - Lexmark C748 | User's Guide - Page 73
the setting you want Use To Off Use the factory default settings for all settings associated with Eco‑Mode. This setting supports the performance specifications for your printer. Energy Reduce energy use, especially when the printer is idle. • Printer engine motors do not start until a job is - Lexmark C748 | User's Guide - Page 74
factory default settings. This setting supports the performance specifications of the printer. Note: Selecting Photo from the printer driver to load the Web page correctly. 2 Click Settings > General Settings > Timeouts. 3 In the Sleep Mode field, enter the number of minutes you want the printer to - Lexmark C748 | User's Guide - Page 75
Warning-Potential Damage: Restoring factory defaults returns most printer settings to the original factory default settings. Exceptions include the display language, custom sizes and messages, and network/port menu settings. All downloads stored in the RAM are deleted. Downloads stored in the flash - Lexmark C748 | User's Guide - Page 76
settings, network information, scanner and bookmark settings, and embedded solutions. Hard disk memory Some printers have a hard disk drive installed. The printer hard disk is designed for device-specific functionality. This lets the device retain buffered user data from complex scan, print, copy - Lexmark C748 | User's Guide - Page 77
, jobs, faxes, and passwords from the printer memory. 4 Navigate to: Back > Exit Config Menu The printer will perform a power‑on reset, and then return to normal operating mode. Erasing printer hard disk memory Note: Some printer models may not have a printer hard disk installed. Configuring - Lexmark C748 | User's Guide - Page 78
If you are using a proxy server, then temporarily disable it to load the Web page correctly. 2 Click Settings > Security > Disk Encryption. Note: Disk Encryption appears in the Security Menu only when a formatted, non‑defective printer hard disk is installed. 3 From the Disk encryption menu, select - Lexmark C748 | User's Guide - Page 79
that confidential data stored in the printer cannot be accessed. For more information, visit the Lexmark security Web page and see the Embedded Web Server Administrator's Guide. 1 Visit http://support.lexmark.com, and then navigate to: Tech Library > Manuals & Guides 2 Type Embedded Web Server in - Lexmark C748 | User's Guide - Page 80
or the CEN Technical Committee 156 standard. • Provide a flat, sturdy, and stable surface. • Keep the printer: - Clean, dry, and free of dust. - Away from stray staples and paper clips. - Away from the direct airflow of air conditioners, heaters, or ventilators. - Free from direct sunlight and - Lexmark C748 | User's Guide - Page 81
furniture. For more information, see www.lexmark.com/multifunctionprinters. You can configure your basic printer by adding up to three 550‑sheet optional drawers and a 2,000‑sheet high‑capacity feeder. A caster base and a spacer are supported in any configurations. Spacers are nonfunctional trays - Lexmark C748 | User's Guide - Page 82
hard button • Opening Tray 1 or loading paper in the multipurpose feeder • Opening a door or cover • Sending a print job from the computer • Performing a power‑on reset with the main power switch • Attaching a device to a USB port 5 Stop or Cancel Stop all printer activity. button Note: A list of - Lexmark C748 | User's Guide - Page 83
to the printer. Access printer menus. Note: These menus are available only when the printer is in the Ready state. • Show the current printer status such as Ready or Busy. • Show printer conditions such as Fuser missing or Cartridge Low. • Show intervention messages and the instructions on how - Lexmark C748 | User's Guide - Page 84
Using C748x 84 Touch 7 Status/Supplies 8 Tips To • Display a warning or error message whenever the printer requires intervention to continue processing. • Access the messages screen for more information on the message, and how to clear it. View a context‑sensitive help information. - Lexmark C748 | User's Guide - Page 85
Using C748x 85 Sample touch screen 1 234 Touch 1 Up arrow 10 To Scroll up. 9 87 6 5 2 Delete folder Delete the file you selected. 3 Left arrow Scroll to the left. 4 Right arrow Scroll to the right. 5 Right scroll increase Scroll to another value in increasing order. 6 Left scroll - Lexmark C748 | User's Guide - Page 86
settings, administrative setup, and active embedded applications. Some applications are supported only in select printer models. • There may be additional solutions and applications available for purchase. To learn more, visit www.lexmark.com. Or, inquire at your point of purchase. Accessing the - Lexmark C748 | User's Guide - Page 87
a Web browser, and then type the printer IP address in the address field. Note: View the printer IP address on the printer control panel home screen. The IP address using the home screen applications, visit the Lexmark Web site at http://support.lexmark.com. Using Background and Idle Screen Icon - Lexmark C748 | User's Guide - Page 88
Eco‑Settings Icon Description The application lets you easily manage energy consumption, noise, toner, and paper usage settings to help reduce the environmental impact of your printer. Understanding Showroom Icon Description The application lets you create and display a customized slide - Lexmark C748 | User's Guide - Page 89
Export. 6 Follow the instructions on the computer screen to save the configuration file, and then type a unique file name or use the default name. Note: If , and then type the printer IP address in the address field. Note: View the printer IP address on the printer control panel home screen. The - Lexmark C748 | User's Guide - Page 90
a user‑defined setting that lets you print on paper sizes that are not preset in the printer menus. Notes: • The smallest supported Universal size is 76.2 x 127 mm (3 x 5 in.) and loaded only in the multipurpose feeder. • The largest supported Universal size is 215.9 x 1219.2 mm (8.5 x 48 in.) and - Lexmark C748 | User's Guide - Page 91
cause a jam. • The standard 550‑sheet tray (Tray 1) does not automatically detect the paper size. 2 Squeeze and slide the width guide to the correct position for the paper size you are loading. Notes: • Use the paper size indicators at the bottom of the tray to help position the length and width - Lexmark C748 | User's Guide - Page 92
C748x 92 3 Squeeze and slide the length guide to the correct position for the paper size you are loading. Notes: • For some paper sizes like letter, legal, and A4, squeeze and slide the length guide backward to accommodate their length. • The length guide has a locking device. To unlock, slide to - Lexmark C748 | User's Guide - Page 93
place the letterhead faceup toward the front of the tray. • When loading preprinted letterhead for two‑sided printing, place the letterhead facedown toward Overloading the tray can cause paper jams and possible printer damage. 6 Insert the tray. Note: For some paper sizes, the tray will extend past - Lexmark C748 | User's Guide - Page 94
printer control panel, verify the paper size and paper type setting for the tray based on the paper you loaded. Loading the optional 550‑sheet special media tray The optional 550‑sheet special media tray (Tray 2) supports narrow paper sizes such as envelopes and A6. 2 1 3 4 1 Primary length guide - Lexmark C748 | User's Guide - Page 95
Using C748x 95 • For a complete list of supported paper sizes, see the "Supported paper sizes, types, and weights" section in the User's Guide. Loading narrow paper sizes such as envelopes and A6 1 Pull the tray completely out. Note: Do not remove trays while a job prints or while Busy appears - Lexmark C748 | User's Guide - Page 96
Using C748x 96 1 2 3 3 Squeeze and slide the width guide to the correct position for the paper size you are loading. 1 2 Note: Use the paper size indicators at the bottom of the tray to help position the width guide. - Lexmark C748 | User's Guide - Page 97
Using C748x 97 4 Squeeze and slide the secondary length guide to the correct position for the paper size you are loading. 1 2 - Lexmark C748 | User's Guide - Page 98
stack with the recommended printable side faceup. Notes: • Load envelopes with the stamp side entering the printer first. • Make sure the paper does not exceed the maximum paper fill indicator located on the side of the width guide. Warning-Potential Damage: Overloading the tray can cause paper - Lexmark C748 | User's Guide - Page 99
long papers such as legal, letter, and A4. Squeeze and slide the guide until it clicks into place. Loading the 2,000‑sheet high‑capacity feeder CAUTION-POTENTIAL INJURY: To reduce the risk of equipment instability, load each paper tray separately. Keep all other trays closed until needed. 1 Pull - Lexmark C748 | User's Guide - Page 100
Using C748x 100 3 Unlock the length guide. 4 Push the length guide release latch to raise the length guide. Slide the guide to the correct position for the paper size you are loading, and then lock the guide. - Lexmark C748 | User's Guide - Page 101
loosen them. Do not fold or crease the paper. Straighten the edges on a level surface. 6 Load the paper stack: • Printable side faceup for one‑sided printing • Printable side facedown for two‑sided Damage: Overloading the tray may cause paper jams and possible printer damage. 7 Insert the tray. - Lexmark C748 | User's Guide - Page 102
C748x 102 Loading the multipurpose feeder The multipurpose feeder can hold approximately: • 100 sheets of 75‑g/m2 (20‑lb) paper • 10 envelopes • 75 transparencies Note: Do not add or remove paper or specialty media while the printer prints from the multipurpose feeder or when the printer control - Lexmark C748 | User's Guide - Page 103
Using C748x 103 2 Gently pull the extension out until it is fully extended. 3 Flex the sheets back and forth to loosen them. Do not fold or crease the paper. Straighten the edges on a level surface. Paper Envelopes Transparencies* * Avoid touching the printable side of transparencies. Be careful - Lexmark C748 | User's Guide - Page 104
envelopes with stamps, clasps, snaps, windows, coated linings, or self‑stick adhesives. These envelopes may severely damage the printer. 5 From the printer control panel, verify the paper size and paper type setting for the feeder based on the paper you loaded. Linking and unlinking trays When the - Lexmark C748 | User's Guide - Page 105
match the settings of any other tray, and then click Submit. Warning-Potential Damage: Paper loaded in the tray should match the paper type name assigned in the printer. The temperature of the fuser varies according to the specified paper type. Printing issues may occur if settings are not properly - Lexmark C748 | User's Guide - Page 106
: Plain Paper is the factory default paper type for all user‑defined custom names. Configuring a custom name If the printer is on a network, loaded into the printer. 1 Open a Web browser, and then type the printer IP address in the address field. Notes: • View the printer IP address on the printer - Lexmark C748 | User's Guide - Page 107
match the paper loaded, or select the appropriate tray or feeder. 3 Click Print. Printing in black and white From the home screen, navigate to: > Settings > Print Settings > Quality Menu > Print Mode > Black Only > Adjusting toner darkness 1 Open a Web browser, and then type the printer IP address - Lexmark C748 | User's Guide - Page 108
Max Yield settings let you choose between a faster print speed or a higher toner yield. Max Yield is the factory default setting. • Max Speed-This lets you print in either black or color depending on what is set in the printer driver. The printer prints in color unless Black Only is selected in the - Lexmark C748 | User's Guide - Page 109
from a flash drive Printing from a flash drive Notes: • Before printing an encrypted PDF file, you will be prompted to enter the file password from the printer control panel. • You cannot print files for which you do not have printing permissions. 1 Insert a flash drive into the USB port. Notes - Lexmark C748 | User's Guide - Page 110
until the document has finished printing. • If you leave the flash drive in the printer after leaving the initial USB menu screen, then you can still print files from the flash drive as held jobs. Supported flash drives and file types Flash drive • Lexar JumpDrive 2.0 Pro (256MB, 512MB, or 1GB - Lexmark C748 | User's Guide - Page 111
after printing. Repeat and Reserve jobs are held in the printer until you delete them. For Windows users 1 With a document open, click File > Print For a confidential print job, also enter a four‑digit PIN. 5 Click OK or Print. 6 From the printer home screen, release the print job. • For confidential - Lexmark C748 | User's Guide - Page 112
(Confidential, Repeat, Reserve, or Verify), and then assign a user name. For a confidential print job, also enter a four‑digit PIN. 4 Click OK or Print. 5 From the printer home screen, release the print job. • For confidential print jobs, navigate to: Held jobs > select your user name > Confidential - Lexmark C748 | User's Guide - Page 113
the Embedded Web Server Administrator's Guide on the Lexmark Web site at http://support.lexmark.com. Checking the virtual display 1 Open a Web browser, and then type the printer IP address in the address field. Notes: • View the printer IP address on the printer home screen. The IP address appears - Lexmark C748 | User's Guide - Page 114
page 133. Checking the status of parts and supplies on the printer control panel From the home screen, touch Status/Supplies > View Supplies. Checking the status of parts and supplies from the Embedded Web Server Note: Make sure the computer and the printer are connected to the same network. 1 Open - Lexmark C748 | User's Guide - Page 115
temporarily disable it to load the Web page correctly. 2 Click Settings > General Settings > Eco‑Mode > select a setting Use To Off Use the factory default settings for all settings associated with Eco‑Mode. Off supports the performance specifications of the printer. Energy Reduce energy use - Lexmark C748 | User's Guide - Page 116
alarm sounds are turned off. • The printer will ignore the Advance Start command. Off Use factory default settings. This setting supports the Note: Selecting Photo from the printer driver may disable performance specifications of the printer. Quiet Mode and provide better print quality - Lexmark C748 | User's Guide - Page 117
To save energy, or if you are have trouble reading your display, adjust the brightness of the display. Available settings range from 20-100. The factory default setting is 100. Using the Embedded Web Server 1 Open a Web browser, and then type the printer IP address in the address field. Notes - Lexmark C748 | User's Guide - Page 118
Warning-Potential Damage: Restoring factory defaults returns most printer settings to the original factory default settings. Exceptions include the display language, custom sizes and messages, and network/port menu settings. All downloads stored in the RAM are deleted. Downloads stored in the flash - Lexmark C748 | User's Guide - Page 119
printers have a hard disk drive installed. The printer hard disk is designed for device-specific printer is being removed from your premises for service. • The printer is being sold to another organization. Disposing of a printer hard disk Note: Some printer models may not have a printer - Lexmark C748 | User's Guide - Page 120
solutions, jobs, faxes, and passwords from the printer memory. 4 Touch Back > Exit Config Menu. The printer will perform a power‑on reset, and then return to normal operating mode. Erasing printer hard disk memory Note: Some printer models may not have a printer hard disk installed. Configuring Disk - Lexmark C748 | User's Guide - Page 121
load the Web page correctly. 2 Click Settings > Security > Disk Encryption. Note: Disk Encryption appears in the Security Menu only when a formatted, non‑defective printer the printer will return to the Enable/Disable screen. 5 Touch Back > Exit Config Menu. The printer will perform a power‑on reset, - Lexmark C748 | User's Guide - Page 122
that confidential data stored in the printer cannot be accessed. For more information, visit the Lexmark security Web page and see the Embedded Web Server Administrator's Guide. 1 Visit http://support.lexmark.com, and then navigate to: Tech Library > Manuals & Guides 2 Type Embedded Web Server in - Lexmark C748 | User's Guide - Page 123
guidelines Using specialty media Tips on using letterhead • Use letterhead designed specifically for laser/LED printers. • Print samples on the letterhead being considered for use before buying large quantities. • Before loading letterhead, flex the sheets to prevent them from sticking together - Lexmark C748 | User's Guide - Page 124
designed for laser/LED printers: • One‑sided paper labels • Vinyl, pharmacy, and double‑sided labels • Vertical marketing labels For detailed information on label printing, characteristics, and design, see the Card Stock & Label Guide available on the Lexmark Web site at http://support.lexmark.com. - Lexmark C748 | User's Guide - Page 125
labels: • Use labels designed specifically for laser/LED printers. Check with the manufacturer or remove a 1.6 mm (0.06 in.) strip on the leading and driver edge, and use a non‑oozing adhesive. • Portrait orientation and cause jams or other paper handling problems. • Check with the manufacturer or - Lexmark C748 | User's Guide - Page 126
The printer trays can automatically feed paper weights up to 90 g/m2 (24 lb bond) grain long paper. The manual feeder can automatically feed paper printing and can cause feeding problems. Smoothness Paper smoothness directly affects print quality. If paper is too rough, toner cannot fuse to it - Lexmark C748 | User's Guide - Page 127
Lexmark supports the use of recycled office paper produced specifically for use in laser (electrophotographic) printers. In 1998, Lexmark made that all recycled paper will feed well. Lexmark consistently tests its printers with recycled paper (20-100% post-consumer waste) and a variety of test paper - Lexmark C748 | User's Guide - Page 128
paper feeding problems in any laser printer (for feeder Multipurpose feeder Manual paper Manual envelope Duplex A4 2 1 1 1 2 2 X 210 x 297 mm (8.27 x 11.7 in.) A5 2 1 2 X 148 x 210 mm (5.83 x 8.27 in.) 2 2 X 1 Source supports paper size with size sensing. 2 Source supports - Lexmark C748 | User's Guide - Page 129
Optional 2,000‑sheet high‑capacity feeder Multipurpose feeder Manual paper Manual envelope Duplex A6 X X loading orientation. 6 This size setting formats the envelope for 215.9 x 355.6 mm (8.5 x 14 in.) unless the size is specified by the software program. 7 Turn Size Sensing off to support - Lexmark C748 | User's Guide - Page 130
loading orientation. 6 This size setting formats the envelope for 215.9 x 355.6 mm (8.5 x 14 in.) unless the size is specified by the software program. 7 Turn Size Sensing off to support universal sizes that are close to standard media sizes. Supported paper types and weights The printer supports - Lexmark C748 | User's Guide - Page 131
Labels • Paper • Vinyl Envelopes Custom Type [x] Rough/Cotton Standard or optional 550‑sheet tray Optional 550‑sheet specialty media drawer Optional 2,000‑sheet high‑capacity feeder Multipurpose feeder Manual Paper Manual Envelope X X X X X X X X X X X Duplex X X X X - Lexmark C748 | User's Guide - Page 132
132 Understanding printer menus Menus list Supplies Menu Replace Supply Cyan Cartridge Magenta Cartridge Yellow Cartridge Black Cartridge Cyan Photoconductor Magenta Photoconductor Yellow Photoconductor Black Photoconductor Waste Toner Bottle Fuser Transfer Module Paper Menu Default Source Paper - Lexmark C748 | User's Guide - Page 133
Select Yes to reset the supply counter. • Select No to exit. Note: Reset the supply counter manually after replacing a photoconductor. Cyan Cartridge Early Warning Low Invalid Near End of Life Replace Missing Defective OK Unsupported Show the status of the cyan toner cartridge. Magenta Cartridge - Lexmark C748 | User's Guide - Page 134
OK Show the status of the yellow photoconductor. Black Photoconductor Early Warning Low Replace Missing OK Show the status of the black photoconductor. Waste Toner Bottle Near Full Replace Missing OK Show the status of the waste toner bottle. 1 This menu appears only in non‑touch‑screen - Lexmark C748 | User's Guide - Page 135
fuser. Transfer Module Early Warning Low Replace Missing OK Show the status of the transfer module. 1 This menu appears only in non‑touch‑screen printer models. 2 This menu appears only in touch‑screen printer models. Paper menu Default Source menu Use Default Source Tray [x] MP Feeder Manual - Lexmark C748 | User's Guide - Page 136
Envelope Other Envelope Specify the paper size loaded in the multipurpose feeder. Notes: • Letter is the US factory default setting. A4 is the international factory default setting. • From the Paper menu, Configure MP Feeder must be set to Cassette for MP Feeder Size to appear as a menu item. Note - Lexmark C748 | User's Guide - Page 137
Cotton Custom Type [x] Specify the type of paper loaded in the multipurpose feeder Notes: • Custom Type [x] is the factory default setting. • From the Paper menu, Configure MP Feeder must be set to Cassette for MP Feeder Type to appear as a menu item. Manual Paper Size A4 A5 A6 JIS B5 Letter Legal - Lexmark C748 | User's Guide - Page 138
First To Determine when the printer selects paper from the multipurpose feeder. Notes: • Cassette is the factory default setting. Cassette configures the multipurpose feeder as the automatic paper source. • Manual sets the multipurpose feeder only for manual‑feed print jobs. • First configures the - Lexmark C748 | User's Guide - Page 139
the relative texture of the plain paper loaded. Note: Normal is the factory default setting. Specify the relative texture of the card stock loaded. Notes: • Normal is the factory default setting. • The options appear only if card stock is supported. Specify the relative texture of the transparencies - Lexmark C748 | User's Guide - Page 140
Understanding printer menus 140 loaded. Note: Normal is the factory default setting. Specify the relative texture of the cotton paper loaded. Specify the relative texture of the custom paper loaded. Notes: • Normal is the factory default setting. • The options appear only if custom type is supported - Lexmark C748 | User's Guide - Page 141
Understanding printer menus 141 Paper Weight menu loaded. Note: Normal is the factory default setting. Specify the relative weight of the transparencies loaded. Note: Normal is the factory default setting. Specify the relative weight of the recycled paper loaded. Note: Normal is the factory default - Lexmark C748 | User's Guide - Page 142
as the paper type. Notes: • Off is the factory default setting for all Paper Loading menus. • Duplex sets the printer default to two‑sided printing for every print job unless one‑sided printing is selected from the Print Properties settings in Windows or from the Print Dialog settings in Macintosh - Lexmark C748 | User's Guide - Page 143
• Off is the factory default setting for all Paper Loading menus. • Duplex sets the printer default to two‑sided printing for every print job unless one‑sided printing is selected from the Print Properties settings in Windows - Lexmark C748 | User's Guide - Page 144
if the custom paper type is supported. Notes: • Off is the factory default setting for all Paper Loading menus. • Duplex sets the printer default to two‑sided printing for every print job unless one‑sided printing is selected from the Print Properties settings in Windows or from the Print Dialog - Lexmark C748 | User's Guide - Page 145
feed direction. Notes: • Short Edge is the factory default setting. • Long Edge appears only when the paper or specialty media can be loaded in either direction. To Print a report containing information about the paper loaded in trays, installed memory, total page count, alarms, timeouts, printer - Lexmark C748 | User's Guide - Page 146
/or disk option is installed. Print a report containing printer asset information, such as serial number and model name. Network/Ports menu Active NIC menu Use Active NIC Auto [list of available network cards] To Notes: • Auto is the factory default setting. • This menu item appears only when an - Lexmark C748 | User's Guide - Page 147
to automatically switch to PS emulation when a print job requires it, regardless of the default printer language. Notes: • On is the factory default setting. • When Off is used, the printer does not examine incoming data. The printer uses PCL emulation if PCL SmartSwitch is set to On. It uses the - Lexmark C748 | User's Guide - Page 148
Network Setup OR Network [x] Setup Reports Network Card TCP/IP IPv6 Wireless AppleTalk To Set the printer to process Macintosh binary PostScript print jobs. Notes: • Auto is the factory default setting. • Off filters print jobs using the standard protocol. • On processes raw binary PostScript print - Lexmark C748 | User's Guide - Page 149
the printer to print a banner page. Note: Off is the factory default setting. TCP/IP menu Note: This menu is available only in network models or printers attached Web Server. View or change the current TCP/IP address. Note: Manually setting the IP address sets the Enable DHCP and Enable Auto IP - Lexmark C748 | User's Guide - Page 150
mDNS Yes No DNS Server Address Enable HTTPS Yes No To Enable the built-in FTP server, which lets you send files to the printer using File Transfer Protocol. Note: Yes is the factory default setting. Enable the built-in Web server (Embedded Web Server). When enabled, you can monitor and manage the - Lexmark C748 | User's Guide - Page 151
Push Button Method or Start PIN Method. Note: Disable is the factory default setting. Specify the network mode. Notes: • Ad hoc is the factory default setting. This configures wireless connection directly between the printer and a computer. • Infrastructure lets the printer access a network using an - Lexmark C748 | User's Guide - Page 152
Understanding printer menus 152 Use To Activate Yes No Enable or disable AppleTalk support. Note: Yes is the factory default setting. View Name Show the assigned AppleTalk name. Note: The name can be changed only from the Embedded Web Server. View Address Show the assigned - Lexmark C748 | User's Guide - Page 153
yyy.yyy.yyy.yyy To Set the size of the USB input buffer. Notes: • Auto is the factory default setting. • Disabled turns off job buffering. Any jobs already buffered on the printer hard disk are printed before normal processing resumes. • The USB buffer size value can be changed in 1-K increments - Lexmark C748 | User's Guide - Page 154
PS emulation when a print job received through a serial port requires it, regardless of the default printer language. Notes: • On is the factory default setting. • When set to Off, the printer does not examine incoming data. The printer uses PCL emulation if PCL SmartSwitch is set to On. It uses the - Lexmark C748 | User's Guide - Page 155
is the recommended setting. • Standard tries to resolve parallel port communication problems. Determine if the printer honors printer hardware initialization requests from the computer. Notes: • Off is the factory default setting. • The computer requests initialization by activating the Init signal - Lexmark C748 | User's Guide - Page 156
PS emulation when a print job received through a serial port requires it, regardless of the default printer language. Notes: • On is the factory default setting. • When set to Off, the printer does not examine incoming data. The printer uses PCL emulation if PCL SmartSwitch is set to On. It uses the - Lexmark C748 | User's Guide - Page 157
. • XON/XOFF/DTR and XON/XOFF/DTR/DSR are combined hardware and software handshaking settings. Determine whether the printer communicates availability to the computer. Notes: • Off is the factory default setting. • This menu item applies only to the serial port if Serial Protocol is set to XON/XOFF - Lexmark C748 | User's Guide - Page 158
DSR On Off To Set the parity for serial input and output data frames. Note: None is the factory default setting. Determine whether the printer uses the DSR Signal. Notes: • Off is the factory default setting. • DSR is a handshaking signal used by most serial cables. The serial port uses DSR to - Lexmark C748 | User's Guide - Page 159
: • None is the factory default setting for Device‑Initiated E‑mail and User‑Initiated E‑mail. • Device Userid and Device Password are used to log in login failures limit. 5 is the factory default setting. • Panel Login Timeout specifies how many minutes the printer remains idle on the home screen - Lexmark C748 | User's Guide - Page 160
a later time. Note: Off is the factory default setting. Disk Wiping menu Disk Wiping erases only print job data in the printer hard disk that are not currently in use by the file system. All permanent data in the printer hard disk are retained, such as downloaded fonts, macros, and held jobs. Note - Lexmark C748 | User's Guide - Page 161
now Do not start now Automatic Method Single pass Multiple pass Manual Method Single pass Multiple pass Scheduled Method Single pass Multiple pass To Specify the mode for disk wiping. Note: Auto is the factory default setting. The printer determines when to initiate a disk wipe. Overwrite the disk - Lexmark C748 | User's Guide - Page 162
and end times associated with the printer Time Zone setting. Note: On is the factory default setting. Enable Network Time Protocol, which synchronizes the clocks of devices on a network. Notes: • On is the factory default setting. • The setting is turned off if you manually set the date and time. - Lexmark C748 | User's Guide - Page 163
models, touch Eco‑Mode, and then select from the options. • Off is the factory default setting. Off resets the printer to its factory default settings. • Energy minimizes the power used by the printer. Performance may be affected, but print quality is not. • Energy/Paper minimizes the use of power - Lexmark C748 | User's Guide - Page 164
Quiet Mode, and then select from the options. • Off is the factory default setting. This setting supports the performance specifications of your printer and allows for optimal printing of color‑rich documents. • On configures the printer to produce as little noise as possible. Run Initial setup Yes - Lexmark C748 | User's Guide - Page 165
Model Name For the [x] Toner, [x] Fuser, and Transfer Module menus, select from the following options: When to display Do not display Display Message to Display Default Alternate Default [text entry] Alternate [text entry] Notes: • IP Address is the factory default setting for "Left side." • Date - Lexmark C748 | User's Guide - Page 166
for Waste Toner Bottle, Paper Jam, Load Paper, and Service Errors. Select from the following options: Display No Yes Message to Display Default Alternate Default [text entry] Alternate [text entry] Notes: • No is the factory default setting for Display. • Default is the factory default setting - Lexmark C748 | User's Guide - Page 167
the following options: Off Single Continuous Notes: • For touch‑screen printer models, touch Cartridge Alarm, and then select from the options. • Single is the factory default setting. This setting sets the alarm as three quick beeps. • Off means no alarm will sound. • Continuous repeats three - Lexmark C748 | User's Guide - Page 168
message before canceling the remainder of the print job. Notes: • 90 seconds is the factory default setting. • When the timer expires, any partially printed page still in the printer is printed, and then the printer checks to see if any new print jobs are waiting. • Print Timeout is available only - Lexmark C748 | User's Guide - Page 169
Idle state, reacts to a short press of the Sleep button. Notes: • Sleep is the factory default setting. This setting sets the printer to operate at a lower power configuration. • Sleep or Hibernate sets the printer to operate at a lower power configurations. • Do Nothing ignores a short press of the - Lexmark C748 | User's Guide - Page 170
Note: This menu appears only in touch‑screen printer models. Use To Copies 1-999 Paper Source Tray [x] MP Feeder Manual Paper Manual Envelope Specify a default number of copies for each print job. Note: 1 is the factory default setting. Set a default paper source for all print jobs. Note: Tray - Lexmark C748 | User's Guide - Page 171
the page (top edge for portrait and left edge for landscape). Specify the orientation of a multiple‑page document. Note: Auto is the factory default setting. The printer chooses between portrait and landscape. Specify that multiple‑page images be printed on one side of a paper. Notes: • Off is the - Lexmark C748 | User's Guide - Page 172
to Cassette in order for Manual Feeder to appear as a menu setting. Specify whether blank pages are inserted in a print job. Note: Do Not Print is the factory default setting. To Set the default printer language. Notes: • PS Emulation is the factory default printer language. PS emulation uses a PS - Lexmark C748 | User's Guide - Page 173
yield. Note: Max Yield is the factory default setting. Set the printer to print text and graphics using only the black toner cartridge. Note: Off is the factory default setting. Set the storage location for downloads. Notes: • RAM is the factory default setting. Downloads stored in RAM are temporary - Lexmark C748 | User's Guide - Page 174
Manual Feeder To Specify whether two‑sided (duplex) printing is set as the default for all print jobs. Notes: • 1 sided is the factory default the media must be loaded in the trays in a different orientation. • You can set two‑sided printing in the software program. For Windows users, click File > - Lexmark C748 | User's Guide - Page 175
default setting. • The printer driver is capable of overriding this setting. Adjust the color output on the printed page. Notes: • Auto is the factory default setting. Auto applies different color conversion tables to each object on the printed page. • Off turns off color correction. • Manual - Lexmark C748 | User's Guide - Page 176
for text is not reduced. Notes: • Off is the factory default setting. • On overrides Toner Darkness settings. Adjust brightness in color outputs. Notes: • 0 is the factory default setting. • This does not affect files where CMYK color specifications are being used. Adjust contrast in color outputs - Lexmark C748 | User's Guide - Page 177
Understanding printer menus 177 Use Color Balance Cyan ‑5 to 5 Magenta ‑5 to 5 Yellow ‑5 to 5 Black ‑5 to 5 Reset Defaults Color Samples sRGB Display sRGB Vivid Display-True Black Vivid Off-RGB US CMYK Euro CMYK Vivid CMYK Off-CMYK Manual Color RGB Image Vivid sRGB Display Display True Black sRGB - Lexmark C748 | User's Guide - Page 178
printer menus 178 Use Manual Color CMYK Image US CMYK Euro CMYK Vivid CMYK Off CMYK Text US CMYK Euro CMYK Vivid CMYK Off CMYK Graphics US CMYK Euro CMYK Vivid CMYK Off Spot Color Replacement Color Adjust To Customize the CMYK color conversions. Notes: • US CMYK is the US factory default - Lexmark C748 | User's Guide - Page 179
the maximum size of the log file before the printer executes the Disk Near Full Action. Note: 5 is the factory default setting. Determine and set how the printer responds when the printer hard disk is nearly full. Notes: • None is the factory default setting. • The value defined in Disk Near Full - Lexmark C748 | User's Guide - Page 180
representation, and control codes are not executed. • To exit or deactivate Hex Trace, turn off or reset the printer. Provide an estimate of the percentage coverage of toner on a page. The estimate is printed on a separate page at the end of each print job. Note: Off is the factory default setting. - Lexmark C748 | User's Guide - Page 181
. Notes: • Resident is the factory default setting. • This menu item appears only when a formatted, non‑defective flash memory option card or printer hard disk is installed. • Make sure the flash memory option or printer hard disk is not read/write‑, write‑, or password‑protected. • Job Buffer Size - Lexmark C748 | User's Guide - Page 182
font name. Notes: • 10U PC‑8 is the US factory default setting. 12U PC‑850 is the international factory default setting. • A symbol set is a set of alphabetical and numeric characters, punctuation, and special symbols. Symbol sets support the different languages or specific programs such as math - Lexmark C748 | User's Guide - Page 183
. Note: Off is the factory default setting. Configure the printer to work with printer software or programs that use different source assignments for trays, drawers, and feeders. Notes: • Off is the factory default setting. • None ignores the Select Paper Feed command. This selection appears only - Lexmark C748 | User's Guide - Page 184
Understanding printer menus 184 Use Tray Renumber View Factory Defaults MPF Default = 8 T1 Default = 1 T2 Default = 4 T3 Default = 5 T4 Default = 20 T5 Default = 21 Env Default = 6 MPaper Default = 2 MEnv Default = 3 Tray Renumber Restore Defaults Yes No To Display the factory default setting - Lexmark C748 | User's Guide - Page 185
be increased in 1% increments. Set the page orientation for HTML documents. Note: Portrait is the factory default setting. Set the page margin for HTML documents. Notes: • 19 mm is the factory default setting. • Margin size can be increased in 1‑mm increments. Specify whether to print backgrounds on - Lexmark C748 | User's Guide - Page 186
stored in the printer. Other translations are available on the Lexmark Web site at www.lexmark.com. Menu item Print All Guides Color Quality Print Quality Printing Guide Media Guide Print Defects Guide Menu Map Information Guide Connection Guide Moving Guide Supplies Guide Description Prints all - Lexmark C748 | User's Guide - Page 187
benefit. Saving paper and toner Studies show that as much as 80% of the carbon footprint of a printer is related to paper usage Lexmark supports the use of recycled office paper produced specifically for use in laser printers. For more information on recycled papers that work well with your printer - Lexmark C748 | User's Guide - Page 188
the instructions on the computer screen. Note: Printer supplies and hardware not listed in a Lexmark collection instructions that came with your printer or cartridge and use the prepaid shipping label. You can also do the following: 1 Visit our Web site at www.lexmark.com/recycle. 2 From the Toner - Lexmark C748 | User's Guide - Page 189
Yellow Toner Cartridge Yellow High Yield Toner Cartridge* C746A1YG C748H1YG Black High Yield Toner Cartridge C746H1KG * These toner cartridges are supported only in C748x printer models. Regular cartridge C746A2CG C748H2CG C746A2MG C748H2MG C746A2YG C748H2YG C746H2KG Ordering a photoconductor - Lexmark C748 | User's Guide - Page 190
or transfer module, see the instruction sheet that came with the supply. Recommended part numbers Part name Fuser Transfer module Part number 40X8112 (100 V) 40X8110 (115 V) 40X8111 (230 V) 40X8307 Ordering a waste toner bottle A message on the printer display appears when the waste toner bottle - Lexmark C748 | User's Guide - Page 191
95°F) • High humidity above 80% • Salty air • Corrosive gases • Heavy dust Replacing parts and supplies Replacing a toner cartridge 1 Open the front door. Warning-Potential Damage: To avoid overexposing the photoconductors, do not leave the front door open for more than 10 minutes. 2 Pull the green - Lexmark C748 | User's Guide - Page 192
. Note: Make sure the cartridge is fully pushed in. 6 Close the front door. Note: When print becomes faded, immediately order a new cartridge. A message on the printer display specifies what color cartridge is low in toner. You can try to extend the life of the cartridges by pulling them out of the - Lexmark C748 | User's Guide - Page 193
pull the waste toner bottle out to remove it from the printer. 1 2 3 Unpack the replacement waste toner bottle. 1 2 4 Peel the seal from the side of the full waste toner bottle, and then place it over the hole to seal off the waste toner bottle. 1 2 5 Place the sealed waste toner bottle in the - Lexmark C748 | User's Guide - Page 194
. 1 2 8 Insert the new waste toner bottle into the printer. 1 2 Replacing a photoconductor Notes: • Replace all four photoconductors at the same time for optimum print quality. • Print quality is affected when the photoconductor is replaced without resetting the supply counter. 1 Open the front - Lexmark C748 | User's Guide - Page 195
open for more than 10 minutes. 2 Pull the specified photoconductor up, and then slide it to the right to remove it from the printer. 2 1 3 Unpack the replacement photoconductor. 1 2 3 Warning-Potential Damage: Do not touch the shiny area on the photoconductor drum. Touching it could damage the - Lexmark C748 | User's Guide - Page 196
Maintaining the printer 196 4 Align and insert the left end of the photoconductor, and then press the right end into place. 1 2 5 Remove the red packing strip from the top of the photoconductor. 6 Close the front door. - Lexmark C748 | User's Guide - Page 197
From the printer control panel, navigate to: > Settings > or > Supplies Menu > > Replace Supply > > Supplies Menu > Replace Supply 2 Select the button that indicates the supply item you replaced. • All • Cyan Photoconductor • Magenta Photoconductor • Yellow Photoconductor • Black Photoconductor - Lexmark C748 | User's Guide - Page 198
the standard bin and multipurpose feeder. 3 Remove any dust, lint, and pieces of paper around and from inside the printer using a soft brush or vacuum. 4 Use a dry cloth to wipe away loose toner particles. Warning-Potential Damage: To avoid overexposing the photoconductor unit or imaging unit, do - Lexmark C748 | User's Guide - Page 199
Maintaining the printer 199 2 Remove all four toner cartridges. Do not remove the photoconductor units for this procedure. Warning-Potential Damage: Do not touch the shiny area on the photoconductor drum. Doing so can damage the photoconductor. 3 Locate the four printhead lenses. 4 Clean the - Lexmark C748 | User's Guide - Page 200
: Before moving the printer, follow these guidelines to avoid personal injury or printer damage: • Turn the printer off using the power support the dimensions of the options. • Keep the printer in an upright position. • Avoid severe jarring movements. Shipping the printer When shipping the printer - Lexmark C748 | User's Guide - Page 201
printer is printing. • Do not load a tray while the printer is printing. Load it before printing, or wait for a prompt to load it. • Do not load too much paper. Make sure the stack height does not exceed the maximum paper fill indicator. • Make sure the guides in the tray or the multipurpose feeder - Lexmark C748 | User's Guide - Page 202
the printer Standard output bin Tray [x] Multipurpose feeder Jam numbers 200-201 202-203 230 202-203 24x 250 What to do Open the front door, and then remove the jammed paper from behind the toner cartridge area. Open the front door, and then remove the jammed paper from under the photoconductor - Lexmark C748 | User's Guide - Page 203
203 200-201 paper jams Paper jam in the toner cartridge area 1 Open the front door. Warning-Potential Damage: To avoid overexposing the photoconductor units, do not leave the front door open for more than 10 minutes. CAUTION-HOT SURFACE: The inside of the printer might be hot. To reduce the risk of - Lexmark C748 | User's Guide - Page 204
drum. Doing so may affect the print quality of future print jobs. 1 2 4 Firmly grasp the jammed paper on each side, then gently pull it out, and then reinstall each photoconductor unit. Note: Make sure all paper fragments are removed. 5 Close the front door. 6 Depending on your printer - Lexmark C748 | User's Guide - Page 205
fuser area 1 Open the front door. Warning-Potential Damage: To avoid overexposing the photoconductor units, do not leave the front door open for more than 10 minutes. CAUTION-HOT SURFACE: The inside of the printer is visible at the top paper guide in the fuser assembly, then firmly grasp the jammed - Lexmark C748 | User's Guide - Page 206
Using the handholds on each side, lift and pull the fuser out of the printer. d Place the fuser on a flat surface with the blue thumb screws facing you. e Pull and then rotate the green rectangular knob clockwise to unlock the top paper guide. 1 2 f Press the green arrow tab to the left, and then - Lexmark C748 | User's Guide - Page 207
are firmly seated. i Pull and then rotate the green rectangular knob counterclockwise to firmly secure the top paper guide. 1 2 j Reinstall the fuser unit: 1 Align the fuser unit using the handholds on each side, and then insert it back into the printer. 2 Turn the screws clockwise to fasten the - Lexmark C748 | User's Guide - Page 208
fuser area 1 Open the front door. Warning-Potential Damage: To avoid overexposing the photoconductors printer might be hot. To reduce the risk of injury from a hot component, allow the surface to cool before touching it. 2 Open the printer at the top paper guide in the fuser assembly, then firmly - Lexmark C748 | User's Guide - Page 209
not touch the roller at the center of the fuser unit. Doing so may damage the fuser. 1 Turn the screws on the fuser counterclockwise to loosen them. 2 Using the handholds on each side, lift and pull the fuser out of the printer. d Place the fuser on a flat surface with the blue thumb screws facing - Lexmark C748 | User's Guide - Page 210
Clearing jams 210 e Pull and then rotate the green rectangular knob clockwise to unlock the top paper guide. 1 2 f Press the green arrow tab to the left, and then lift the top paper guide. 1 2 g Firmly grasp the jammed paper on each side, and then gently pull it out. Note: Make sure all paper - Lexmark C748 | User's Guide - Page 211
counterclockwise to firmly secure the top paper guide. 1 2 j Reinstall the fuser unit: 1 Align the fuser unit using the handholds on each side, and then insert it back into the printer. 2 Turn the screws clockwise to fasten the fuser securely. 4 Close the printer top access cover, and then close - Lexmark C748 | User's Guide - Page 212
Clearing jams 212 24x paper jam Paper jam in Tray 1 1 Open Tray 1. 2 Firmly grasp the jammed paper on each side, and then gently pull it out. Note: Make sure all paper fragments are removed. 3 Close Tray 1. 4 Depending on your printer model, touch Continue, jam cleared or press . - Lexmark C748 | User's Guide - Page 213
or press . 250 paper jam 1 Press the paper release lever, and then remove any jammed pages from the multipurpose feeder. 1 2 Note: Make sure all paper fragments are removed. 2 Load new paper into the multipurpose feeder. 3 Depending on your printer model, touch Continue, jam cleared or press . - Lexmark C748 | User's Guide - Page 214
Troubleshooting Solving basic printer problems If there are basic printer problems, or the printer is unresponsive, make sure: • The power cord is plugged into the printer and a properly grounded electrical outlet. • The electrical outlet is not turned off by any switch or breaker. • The printer - Lexmark C748 | User's Guide - Page 215
Troubleshooting 215 Change [paper source] to [custom type name] load [orientation] Try one or more of the following • Load the correct paper size and type in the tray, verify the paper size and type settings are specified in the Paper menu on the printer control panel, and then select Finished - Lexmark C748 | User's Guide - Page 216
Troubleshooting 216 Change [paper source] to [paper type] [paper size] Try one or more of the following: • Load the correct paper size and type in the tray, verify the paper size and type settings are specified in the Paper menu on the printer control panel, and then select Finished changing paper - Lexmark C748 | User's Guide - Page 217
size, then it feeds from that tray. If the printer cannot find a tray with the correct paper type and size, then it prints from the default paper source. • Cancel the current job. Load [paper source] with [custom string] Try one or more of the following: • Load the specified tray or feeder with the - Lexmark C748 | User's Guide - Page 218
a tray that has the correct paper size and type, then it feeds from that tray. If the printer cannot find a tray with the correct paper size and type, then it prints from the default paper source. • Cancel the current job. Load manual feeder with [custom type name] Try one or more of the following - Lexmark C748 | User's Guide - Page 219
Troubleshooting 219 Load manual feeder with [paper size] Try one or more of the following: • Load the feeder with the correct paper size. • Depending on your printer model, touch Continue or press to clear the message and continue printing. Note: If no paper is loaded in the feeder when Continue - Lexmark C748 | User's Guide - Page 220
unsupported disk, and then install a supported one. 2 Select Continue to clear the message and continue printing. For non‑touch screen printer models, press to confirm. 31.xx Missing or defective [color] cartridge The specified toner cartridge is either missing or not functioning properly. • Remove - Lexmark C748 | User's Guide - Page 221
printer models, press to confirm. • Check tray length and width guides and make sure paper is properly loaded in the tray. • For Windows example, if the MP Feeder Size is set to Printer service required Select Continue to clear the message or contact customer support. For non‑touch‑screen printer - Lexmark C748 | User's Guide - Page 222
following: • Select Continue to clear the message and continue printing. For non‑touch‑screen printer models, press to confirm. • Cancel the current print job. • Install additional printer memory. 51 Defective flash detected Try one or more of the following: • Select Continue to clear the message - Lexmark C748 | User's Guide - Page 223
clear the message. For non‑touch‑screen printer models, press to confirm. • Turn the printer off, wait for about 10 seconds, and then turn the printer back on. • Upgrade (flash) the network firmware in the printer. For more information, contact customer support. 54 Serial option [x] error Try one - Lexmark C748 | User's Guide - Page 224
Troubleshooting 224 55 Unsupported option in slot [x] 1 Turn the printer off. 2 Unplug the power cord from the wall outlet. 3 Remove the unsupported option card from the printer system board, and then replace it with a supported card. 4 Connect the power cord to a properly grounded electrical - Lexmark C748 | User's Guide - Page 225
Troubleshooting 225 57 Configuration change, some held jobs were not restored Something has changed in the printer to invalidate the held jobs. Possible changes include: • The printer firmware has been updated. • Paper input options needed for the print job were removed. • The print job was - Lexmark C748 | User's Guide - Page 226
options designed specifically for this printer are supported. Try one or more of the following: • Remove the specified tray. • Select Continue to clear the message and continue printing without using the specified tray. For non‑touch‑screen printer models, press to confirm. 61 Remove defective disk - Lexmark C748 | User's Guide - Page 227
.xx Fuser missing Reinsert the fuser into the printer. For instructions on installing the fuser, select More Information on the printer control panel. 82.xx Waste toner bottle nearly full Make sure a replacement waste toner bottle has been ordered. 1 Replace the waste toner bottle. For instructions - Lexmark C748 | User's Guide - Page 228
For non‑touch‑screen printer models, press to confirm. • Order a replacement transfer module immediately. When print quality is reduced, install the new transfer module, following the instruction sheet that came with the replacement part. 84.xx [Color] photoconductor nearly low 1 Order a replacement - Lexmark C748 | User's Guide - Page 229
For non‑touch‑screen printer models, press to confirm. 84.xx Replace [color] photoconductor 1 Replace the photoconductor, following the instruction sheet that came with the replacement supply. Notes: • All four photoconductors should be replaced at the same time. • Make sure to reset the maintenance - Lexmark C748 | User's Guide - Page 230
Troubleshooting 230 88.xx [Color] cartridge critically low The specified toner cartridge is critically low. 1 For instructions on replacing a toner cartridge, select More Information on the printer control panel. 2 Select Continue to clear the message and continue printing. For non‑touch‑screen - Lexmark C748 | User's Guide - Page 231
Troubleshooting 231 Incorrect characters print • Make sure the printer is not in Hex Trace mode. If Ready Hex appears on the display, you must exit Hex Trace mode before you can print your job. Turn the printer matches the paper loaded in the tray: 1 From the printer control panel Paper menu - Lexmark C748 | User's Guide - Page 232
Troubleshooting 232 Print jobs do not print Try one or more of the following: MAKE SURE THERE IS NO PROBLEM WITH YOUR PRINTER From the printer control panel, check the status. If necessary, follow the recovery instructions. MAKE SURE THE PRINTER IS READY TO PRINT Make sure Ready appears on the - Lexmark C748 | User's Guide - Page 233
Troubleshooting 233 Print job takes fuser from becoming damaged by large temperature differentials across its length. CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need to be serviced. For more information, contact customer support. Printer display is blank The printer - Lexmark C748 | User's Guide - Page 234
> Print Timeout 3 Increase the Print Timeout value, and then press or touch to confirm. Solving home screen applications problems Note: This troubleshooting step applies only to touch-screen printer models. An application error has occurred CHECK THE SYSTEM LOG FOR RELEVANT DETAILS 1 Type the - Lexmark C748 | User's Guide - Page 235
Troubleshooting 235 CONTACT CUSTOMER SUPPORT If you still cannot isolate the problem, then contact customer support. Solving option problems 2,000-sheet drawer problems CHECK THE DRAWER CONNECTION Make sure the 2,000‑sheet drawer is properly connected to the printer. LOAD PAPER If the tray is - Lexmark C748 | User's Guide - Page 236
see the Networking Guide on the Software and Documentation CD. Memory card Make sure the memory card is securely connected to the printer system board. Option does not operate correctly or quits after it is installed Try one or more of the following: RESET THE PRINTER Turn the printer off, wait for - Lexmark C748 | User's Guide - Page 237
Troubleshooting 237 MAKE SURE THE OPTION IS SELECTED From the computer you are printing from, select the option. For more information, see "Updating available options in the printer driver" on page 34. Paper tray problems Try one or more of the following: MAKE SURE THE PAPER IS LOADED CORRECTLY 1 - Lexmark C748 | User's Guide - Page 238
Troubleshooting 238 MAKE SURE THERE IS NOT TOO MUCH PAPER IN THE PAPER TRAY Make sure the paper does not exceed the maximum paper fill indicator located in the tray or feeder. MAKE SURE THE ENTIRE PAPER STACK IS SITTING FLAT IN THE TRAY Before loading the paper, do the following: • Flex the sheets - Lexmark C748 | User's Guide - Page 239
Troubleshooting 239 Solving print quality problems If the solutions here do not correct the problem, contact customer support. You may have a printer part that requires adjustment or replacement. Characters have jagged or uneven edges If you are using downloaded fonts, verify that the fonts are - Lexmark C748 | User's Guide - Page 240
PRINT OR TONER CARTRIDGE Replace the worn or defective cartridge. Incorrect margins ABCD ABCD ABCD These are possible solutions. Try one or more of the following: CHECK THE PAPER GUIDES Move the guides in the tray to the correct positions for the paper size loaded. CHECK THE PAPER SIZE SETTING - Lexmark C748 | User's Guide - Page 241
Troubleshooting 241 MAKE SURE THERE IS NO DEFECTIVE PRINT OR TONER CARTRIDGE Replace the worn or defective cartridge. For more information, see the instruction sheet that came with the replacement part. MAKE SURE THE TRANSFER MODULE IS NOT DEFECTIVE Replace the defective transfer module. For more - Lexmark C748 | User's Guide - Page 242
OR TONER CARTRIDGE Replace the worn or defective cartridge. MAKE SURE THE TRANSFER MODULE IS NOT DEFECTIVE Replace the defective transfer module. For more information, see the instruction sheet that came with the replacement part. MAKE SURE THE FUSER IS NOT DEFECTIVE Replace the defective fuser. For - Lexmark C748 | User's Guide - Page 243
CHECK THE PAPER TYPE SETTING Make sure the paper type setting matches the paper loaded in the tray or feeder: • From the Paper menu on printer control panel, check the Paper Type setting. • For Windows users, check this setting from Print Properties. • For Macintosh users, check this setting from - Lexmark C748 | User's Guide - Page 244
color that is not printing. CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need to be serviced. Printer is printing blank pages Try one or more of the following: MAKE SURE THERE IS NO PACKING MATERIAL LEFT ON THE PRINT OR TONER CARTRIDGE Remove the cartridge and make sure - Lexmark C748 | User's Guide - Page 245
Troubleshooting 245 CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need to be serviced. Repeating defects appear on prints ) ) ) Try one or more of the following: REPLACE THE PRINT OR TONER CARTRIDGE Replace the cartridge of the color with the repeating defect, if the - Lexmark C748 | User's Guide - Page 246
CONTACT CUSTOMER SUPPORT If the problem continues, the printer may need to be serviced. Skewed print CHECK THE PAPER GUIDES Move the guides in the tray to the correct positions for the paper size loaded. CHECK THE PAPER Make sure you are using paper that meets the printer specifications. Solid color - Lexmark C748 | User's Guide - Page 247
touch the photoconductor drum. Doing so may affect the print quality of future print jobs. • Reinsert the cartridges. Note: If the quality does not improve, then replace the cartridges. CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need to be serviced. Streaked horizontal - Lexmark C748 | User's Guide - Page 248
THE TRANSFER MODULE IS NOT WORN OR DEFECTIVE Replace the worn or defective transfer module. MAKE SURE THE PHOTOCONDUCTOR IS NOT WORN OR DEFECTIVE Replace the worn or defective photoconductor. MAKE SURE THE FUSER IS NOT WORN OR DEFECTIVE Replace the worn or defective fuser. MAKE SURE THE PRINTER HAS - Lexmark C748 | User's Guide - Page 249
Paper Texture setting matches the paper loaded in the tray or feeder. If necessary, change the Paper Texture setting from Normal to Rough. MAKE SURE THE FUSER IS NOT WORN OR DEFECTIVE Replace the worn or defective fuser. For more information, see the instruction sheet that came with the replacement - Lexmark C748 | User's Guide - Page 250
Troubleshooting 250 Toner specks Try one or more of the following: MAKE SURE THERE IS NO WORN OR DEFECTIVE PRINT OR TONER CARTRIDGE Replace the worn or defective cartridge. MAKE SURE THERE IS NO TONER IN THE PAPER PATH CONTACT CUSTOMER SUPPORT If the problem continues, then the printer may need - Lexmark C748 | User's Guide - Page 251
Troubleshooting 251 Uneven print density MAKE SURE THERE IS NO DEFECTIVE OR WORN PRINT OR TONER CARTRIDGE Replace the worn or defective cartridge. Solving color quality problems FAQ about color printing What is RGB color? Red, green, and blue light can be added together in various amounts to - Lexmark C748 | User's Guide - Page 252
must be used, then adjusting the Toner Darkness setting to 1, 2, or 3 will lighten the transparency. Make sure to print on the recommended type of color transparencies. What is manual color correction? When manual color correction is enabled, the printer employs user‑selected color conversion tables - Lexmark C748 | User's Guide - Page 253
Troubleshooting 253 Object type Color conversion tables CMYK Image CMYK Text CMYK Graphics • US CMYK-Applies color correction to approximate the SWOP (Specifications problem depends on the Color Correction setting being used (Auto, Off, or Manual Server: 1 Type the printer IP address or host - Lexmark C748 | User's Guide - Page 254
, contact your system support person. Contacting customer support When you call customer support, describe the problem you are experiencing, the message on the display, and the troubleshooting steps you have already taken to find a solution. You need to know your printer model type and serial - Lexmark C748 | User's Guide - Page 255
name: Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte Machine type services, except those expressly designated by the manufacturer, are the user's responsibility. For Lexmark technical support, visit http://support.lexmark.com. For information on supplies and downloads, visit www.lexmark - Lexmark C748 | User's Guide - Page 256
private expense. Trademarks Lexmark, Lexmark with diamond design, and MarkVision are trademarks of Lexmark International, Inc., printer commands (language) and functions included in its printer products. This printer is intended to be compatible with the PCL language. This means the printer - Lexmark C748 | User's Guide - Page 257
and used in accordance with the instructions, may cause harmful interference to radio • Consult your point of purchase or service representative for additional suggestions. The manufacturer a properly shielded and grounded cable such as Lexmark part number 1021231 for parallel attach or 1021294 - Lexmark C748 | User's Guide - Page 258
information statement should be directed to: Director of Lexmark Technology & Services Lexmark International, Inc. 740 West New Circle Road See www.lexmark.com for current values. Waste from Electrical and Electronic Equipment (WEEE) directive The WEEE logo signifies specific recycling programs - Lexmark C748 | User's Guide - Page 259
of the printer or supplies in the same manner as normal household waste. Consult laser system and printer are designed so there is never any human access to laser radiation above a Class I level during normal operation, user maintenance, or prescribed service condition. Laser advisory label A laser - Lexmark C748 | User's Guide - Page 260
de laser. DANGER - Rayonnements laser invisibles lors du retrait des cartouches et du déverrouillage des loquets. Eviter toute exposition au rayon laser. VAARA - Näkymätöntä lasers laser invisibili durante la rimozione delle cartucce e del blocco. Evitare l´esposizione al raggio laser de 7.3 (C748) 0. - Lexmark C748 | User's Guide - Page 261
Sleep Mode Timeout. Factory default Sleep Mode Timeout the power supply cord from de conformité aux normes de l'industrie du Canada Cet appareil numérique de classe B est conforme aux exigences de la norme canadienne relative aux équipements pouvant causer des is: Lexmark International Technology - Lexmark C748 | User's Guide - Page 262
service, this device is intended to be operated indoors and away from windows number only signifies that the Industry Canada technical specifications were met. Industry Canada (Canada) Cet service faisant l'objet d'une licence, cet appareil doit être utilisé à l'intérieur et loin des fenêtres afin de - Lexmark C748 | User's Guide - Page 263
požadavky a dalšími příslušnými ustanoveními směrnice 1999/5/ES. Lexmark International, Inc. erklærer herved, at dette produkt overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF. Hiermit erklärt Lexmark International, Inc., dass sich das Gerät dieses Gerät in Übereinstimmung - Lexmark C748 | User's Guide - Page 264
1999/5/ES. Svenska Härmed intygar Lexmark International, Inc. att denna produkt står i överensstämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv 1999/5/EG. Statement of Limited Warranty Lexmark C746n, C746dn, C746dtn, C748e, C748de, C748dte - Lexmark C748 | User's Guide - Page 265
referred to in this statement as "Remarketer." Limited warranty Lexmark warrants that this product: -Is manufactured from new parts, or new and serviceable used parts, which perform like new parts -Is, during normal use, free from defects in material and workmanship If this product does not function - Lexmark C748 | User's Guide - Page 266
with Lexmark user's guides, manuals, instructions or guidance -Unsuitable physical or operating environment -Maintenance by anyone other than Lexmark or a Lexmark authorized servicer -Operation of a product beyond the limit of its duty cycle -Use of printing media outside of Lexmark specifications - Lexmark C748 | User's Guide - Page 267
Remove defective disk 226 62 Disk full 226 80.xx Fuser life warning 227 80.xx Fuser missing 227 80.xx Fuser near life warning 226 80.xx Replace fuser 227 82.xx Replace waste toner bottle 227 82.xx Waste toner bottle missing 227 82.xx Waste toner bottle nearly full 227 83.xx Replace transfer module - Lexmark C748 | User's Guide - Page 268
174 firmware card installing 20 flash drive printing from 67, 109 Flash Drive menu 170 flash drives supported file types 68, 110 flash memory card installing 20 troubleshooting 235 font sample list printing 70, 112 Forms and Favorites setting up 88 four‑arrow‑button printer control panel 47 fuser - Lexmark C748 | User's Guide - Page 269
the optional tray 91 loading the standard tray 49, 91 lock, security 76, 118 locking the system board 76, 118 M maintenance counter, resetting 197 Max Speed and Max Yield using 66, 108 memory types installed on printer 76, 119 memory card installing 18 troubleshooting 236 menu settings page printing - Lexmark C748 | User's Guide - Page 270
15 network 15 order of installation 31 ports 15 printer hard disk, installing 26 printer hard disk, removing 30 updating in printer driver 34 ordering fuser 190 photoconductors 189 toner cartridges 189 transfer module 190 waste toner bottle 190 P paper characteristics 125 letterhead 127 preprinted - Lexmark C748 | User's Guide - Page 271
Remove defective disk 226 62 Disk full 226 80.xx Fuser life warning 227 80.xx Fuser missing 227 80.xx Fuser near life warning 226 80.xx Replace fuser 227 82.xx Replace waste toner bottle 227 82.xx Waste toner bottle missing 227 82.xx Waste toner bottle nearly full 227 83.xx Replace transfer module - Lexmark C748 | User's Guide - Page 272
219 Remove paper from standard output bin 219 removing printer hard disk 30 repeat print jobs 68, 110 printing from a Macintosh computer 69, 111 printing from Windows 69, 111 replacing supplies photoconductor 194 toner cartridge 191 waster toner bottle 193 Reports menu 145, 148 reserve print jobs 68 - Lexmark C748 | User's Guide - Page 273
, from printer control panel 114 checking, using the Embedded Web Server 72, 114 conserving 187 storing 191 using genuine Lexmark 190 using recycled paper 187 Supplies menu 133 supplies, ordering fuser 190 photoconductors 189 toner cartridges 189 transfer module 190 waste toner bottle 190 supplies - Lexmark C748 | User's Guide - Page 274
memory 76, 119 erasing 77, 119 volatility statement of 76, 119 W waste toner bottle ordering 190 replacing 193 wiping the printer hard disk 77, 120 wired network setup using Macintosh 40 using Windows 40 Wireless menu 151 wireless network configuration information 35 installation, using Macintosh 38
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C746x and C748x
User's Guide
April 2012
www.lexmark.com
Machine type(s):
5026
Model(s):
310, 330, 510, 530