Oki ML620 ML620, ML621 Users' Guide - English

Oki ML620 Manual

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  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 1
    RMTL362220/ML621 User's Guide 59320101 my.okidata.com
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 2
    , Ltd. Epson is a registered trademark of Epson America, In. IBM is a registered trademark of International Business Machines Corp. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and other countries. ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 3
    Chapter 1: Introduction 5 Printer Features 5 Oki Data on the Internet 5 Parts Identification: Front View 29 Forms Tear-Off Feature 30 Potential Problems with Software Packages 30 Changing the Forms Tear-Off Setting 31 Manual Forms Tear Off 31 Paper Park 32 43 ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 4
    Paper Jams 74 Cleaning the Printer 75 Printer Exterior 75 Printer Interior 76 Testing the Printer 77 Font Sample Test 77 Rolling ASCII Test 78 Hexadecimal Dump Mode 79 Chapter 6: Troubleshooting 80 General Information 80 Responding to Alarm Conditions 81 Problems / Solutions 82 Appendix
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 5
    Internet The Oki Data Web Sites provide the most current information available on your printer. On-line documents are available for viewing and downloading via Oki Data's Web Sites. You may reach Oki Data via the Internet at:  www.okiprintingsolutions.com  my.okidata.com ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 6
    Parts Identification: Front View 1. Sheet Guide, Rear . Paper Type Lever . Platen Knob . Sheet Guide, Front (open to fit the front feed paper tray or the tractor) . Control Panel . On-Off Switch . Access Cover 7 6 5 4 1 2 3 ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 7
    . Optional Cut Sheet Feeder/Roll Paper Stand connector Note: The serial number of your printer is on a label on the back, beside "S/N." Parts Identification: Inside View 1. Paper Thickness Lever . Ribbon Cartridge . Print Head . Pull-up Guide Assembly 1 5 6 4 3 2 1 4 2 3 ML620/ML621 User
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 8
    light indicates an alarm condition The SEL light indicates if the printer is online The 7 keys function differently, depending on which printer mode is active The lights above these key labels show which active. The lines above the square indicate a flashing light ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 9
    indicates high temperature alarm status. Printer is online; ready to receive data and print. Printer is offline; not ready to receive data and print. When flashing Cover is open. Printer is in Menu mode. Printer is in Tear down position. Printer is in Tear up position. ML620/ML621 User's Guide 
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 10
    DRAFT is selected. > Indicates COURIER is selected. > Indicates GOTHIC is selected. > Indicates OCR-B is selected. With ALARM light flashing: > Indicates an incorrect Paper Lever setting. ML620/ML621 User's Guide 10
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 11
    2 > LED 1 > LED 1 and 2 Flashing > LED 2 SLEEP Green Flashing Explanation With TEAR light ON: > Printer is in Menu Mode. Without ALARM light flashing: > 10 CPI is selected. > 12 CPI is selected. > 15 selected. > HIGH COPY is selected. Low power consumption mode. ML620/ML621 User's Guide 11
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 12
    line / Off-line On-line / Off-line On-line / Off-line Function when pressed Takes the printer off-line. Takes the printer on-line. For continuous forms: when paper is loaded, performs a form feed. For cut sheets: key to toggle through the print speed options. No effect. ML620/ML621 User's Guide 12
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 13
    Online / Offline Function when pressed No effect. Pressing these keys at the same time RESETS the printer to the original factory defaults. No effect. Selects a Menu configuration. Performs a forward line feed when paper is in the tear position. Enters/Exits Menu Mode. ML620/ML621 User's Guide 13
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 14
    2: Paper Handling This chapter describes how to use continuous forms and cut sheet paper in the printer, including:  Loading Continuous Forms Paper  Rear Feed  Front Feed  Bottom Feed ( and Front Feed  Ejecting Cut Sheet Paper  Notes on Different Types of Paper ML620/ML621 User's Guide 14
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 15
    of the printer is close to and parallel with the edge of the surface and at least 24" (61 cm) from any wall. There are three ways to load continuous forms paper. See the following pages for instructions.  Rear feed  Front feed  Bottom feed (optional pull tractor) ML620/ML621 User's Guide 15
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 16
    the printer. If you do not, skip down to "Front Feed." 1. Make sure the printer is turned ON. . Make sure the Paper Type lever is in the REAR feed position: 2 1 . Open the access cover (1) and set the Paper Thickness lever to suit the paper. Close the cover. 1 3 ML620/ML621 User's Guide 16
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 17
    the tractors (1). NOTE: If the tractor assembly is in the front of the printer, open the front access door, grab the finger guides (2) on each side and pinch them together to release the guide. Remove it from the front and insert it into the back feed and when it is seated, push down
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 18
    from the back of the printer) to the reference mark (2) matching the width of the paper you are loading. Then close the lock lever on the right tractor. 2 1 . Move the rear paper guide to midway between the left page. To change the setting, see "Top of Form (TOF)". ML620/ML621 User's Guide 18
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    Front Feed 1 Lock Lever 2 Upper Tractor Cover 3 Pins 2 1 3 1. Make sure the Paper Type lever is in the FRONT feed position. . Pull down the door to open the front sheet guide (1). 1 ML620/ML621 User's Guide 19
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    seated, push down to snap the guides in place. Replace the back sheet guide. 1 1 . Pull up on the lock levers to release them. . You will find reference marks on the printer for the most common paper sizes. the page. To change the setting, see "Top of Form (TOF)". ML620/ML621 User's Guide 20
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    forms onto the sprocket pins. NOTE: Make sure that paper is fed straight into the printer to avoid the possibility of skew printing, irregular line feeding and paper jam. 11. the access cover. 1. Turn the printer ON. 1. Press the LF/FF key to feed paper to the tractor. ML620/ML621 User's Guide 21
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    been aligned with the paper cutter, release the keys. When data is received by the printer or when the SEL key is pressed to select the printer, the paper will retract to the new position. Removing Continuous covers and remove the forms. . Close the pin tractor covers. ML620/ML621 User's Guide 22
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    feed. See the following pages for instruction. Cut Sheet Paper, Top and Front Feed 1. Make sure the printer is turned ON. Note: If there is any continuous forms paper in the printer, eject it as described in " open the front cover and install the front paper tray. 1 2 ML620/ML621 User's Guide 23
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    the printing side downwards for top feed and upwards for front feed and the left edge aligned with the Paper Guide (1), carefully insert the paper on the Paper Tray (2) and into the printer until it is gripped. 1 2 1 2 . To advance the paper in small steps, press LF/FF. NOTES: > Make sure that the
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    , add another sheet for the printer to continue printing from where it left off. To eject a cut sheet left in the printer, follow these steps: 1. Press the SEL button to take the printer off-line. . Press LOAD/ and cause jams.  Do not use labels on individual sheets. ML620/ML621 User's Guide 25
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    knob when the printer is on, the Top of Form misaligns. Always shut the printer off before turning of Form sets the print start position for the printer. It is adjustable in increments of 1/144 of Top of Form and Forms Tear-Off settings of your printer interact. How you set the Top of Form depends
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 27
    Forms Tear-Off is Off or On When the TEAR light is blinking, it indicates that the printer is in TEAR position (i.e., the paper is ready to be torn off). There are two PITCH (2) key and press the PRINT SPEED key (3). . Press the PRINT QUALITY (4) key to print the menu. ML620/ML621 User's Guide 27
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    TOF is set. The default TOF is set at 11/12" (23.28 mm). With paper loaded and the printer on and selected: 1. Align the paper with the first print line position as follows:  To set the TOF , see "Resetting Top of Form to the Factory Default" later in this chapter. ML620/ML621 User's Guide 28
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    of Form position lower for one page only: 1. Press SEL to deselect the printer. . Press LF to lower the position of the Top of Form. Resetting Top the paper path. . Turn the printer off. . Press and hold LF/FF + TEAR while turning on the printer. . Reload paper. ML620/ML621 User's Guide 29
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    printer, Forms Tear-Off may be activated. No data is lost, but this causes uneven print registration due to the paper movement. If this occurs, use the menu to turn off this feature, then use the TEAR key to move the paper up to the tear position manually (see next page). ML620/ML621 User's Guide
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    ITEM repeatedly until Form Tear-Off appears in the second column: Rear Feed Form Tear‑Off Manual . Press SET until the time interval you wish to select appears in the third column: the tear off position manually by pressing the LF/FF key and then pressing TEAR. ML620/ML621 User's Guide 31
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    sheet printing without removing continuous feed paper from the printer. To print single cut sheets: 1. Tear paper again: 1. Remove cut-sheet paper from the printer. . Move the paper Release Lever to Continuous. of the paper. CAUTION! Make sure the printer is turned off before you open the access
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    1 2 3 4 5 6 7 8 9 10 NOTES: If the lever position does not suit the paper thickness, paper feeding and printing may not work properly. To avoid possible pin breakage/ribbon snagging, do not print on bank books. When lever positions 5-10 are selected, printing quality for carbon paper may decline
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 34
    Chapter 3: Print Settings This section describes how to set and manage:  Print Quality  Character Pitch  Print Speed  Emulations For more print setting options, see the Menu settings in chapter 4. ML620/ML621 User's Guide 34
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    QUALITY key. Each time the key is pressed the light sequence above the PRINT QUALITY key changes until all the options have been cycled through. ML620/ML621 User's Guide 35
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    the CHARACTER PITCH lights are flashing. To select non‑proportional, press the CHARACTER PITCH key until the printer shows the light sequence for the cpi value you want to use. There are two CHARACTER PITCH key changes until all the options have been cycled through. ML620/ML621 User's Guide 36
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    Pressing LOAD/EJECT re-initializes the printer, but does not affect any menu settings and does not reset the printer to the factory defaults. For information on resetting the printer to the factory defaults, see "Resetting the Menu to the Factory Defaults" in chapter 4. ML620/ML621 User's Guide 37
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    SPEED key. . Press LF/FF. The following line prints: Printer Control Emulation Mode IBM PPR . Press TEAR repeatedly until the emulation you wish to select prints in the right‑hand column. . Hold down the CHR PITCH key and press the PRINT SPEED key to exit Menu Mode. ML620/ML621 User's Guide 38
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 39
    . Features include Printer Control, Font, Symbol Sets, Rear Feed (Push), Front Feed (Push), Pull, Cut Sheet (Top), Cut Sheet (Front), and Setup. Menu Mode Keys Use the purple "sub-menu" labels on the Control Panel that are below the gray keys to identify functions: ML620/ML621 User's Guide 39
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    backward through the Item options. SEL + TEAR Use this key sequence to cycle backward through the Set options. CHR PITCH + Exits MENU mode. PRINT SPEED ML620/ML621 User's Guide 40
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 41
    settings (factory defaults): 1. Turn the printer off. . Press and hold down the SEL and LF/FF keys at the same time while turning the printer ON. The SEL light will flash. . Press and hold down the TEAR key and then press the SEL key again to put the printer online. ML620/ML621 User's Guide 41
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    only way to have a record of the settings. 1. Press the SEL key to take the printer offline (the SEL light will turn off). . Use the GROUP, ITEM and SET keys to If you turn off the printer without first exiting the Menu Mode, the changes you have made will be lost. ML620/ML621 User's Guide 42
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    is engaged, as noted. MENU SETTINGS TABLE Group Item Printer Control Emulation Mode Font Print Mode Draft Mode Pitch Function Selects the printer command set (emulation) you want to engage. Settings ( inch (cpi). 10 cpi, 12 cpi, 15 cpi, 17.1 cpi, 20 cpi ML620/ML621 User's Guide 43
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    British, Danish I, Swedish, Italian, Spanish I, Japanese, Norwegian, Danish II, Spanish II, Latin American, French Canadian, Dutch, Publisher If you do not want the printer to use a slash to distinguish the number zero from the capital letter O, change the setting to Unslashed. Slashed, Unslashed
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 45
    Croatic I, Servo Croatic II, ECMA94, Hungarian CWI, Windows Greek, Windows East Europe, Windows Cyrillic, East Europe Latin II 852, Cyrillic I-855, Hebrew OC, Turkey_857, Latin 5 (Windows Turkey), Windows Hebrew, Ukranian, Bulgarian, ISO Latin 6 (8859/10), Windows Baltic, Baltic_ 774, KBL-Lithuanian,
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 46
    paper advancement or select a time; when printer is idle for .5, 1 or 2 seconds, paper is advanced from the current print position to the tear position. When data is received, paper is moved to its original printing position. Manual, 0.5 sec, 1 sec, 2 sec Specify whether to skip over perforations
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 47
    14" (355.6 mm), 17" (431.8 mm) Paper position (print or cut) when Print position, Cut position printer is powered on. Specify an adjustment value for where to cut the end of a continuous form. -20 ~ -1, 0, (+) and to the top edge of the page (-) in 1/144" increments. ML620/ML621 User's Guide 47
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    manual form paper advancement or select a time; when printer is idle for .5, 1 or 2 seconds, paper is advanced from the current print position to the tear position. When data is of Form -2, -1, 0, +1, +2 Default, Mode1, Mode2 6 LPI, 8 LPI Manual, 0.5 sec, 1 sec, 2 sec ML620/ML621 User's Guide 48
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    . If your software has its own page formatting controls, leave the default setting. To set the printer to go to the next page when it comes within 1" (25 mm) of the bottom of 431.8 mm) Paper position (print or cut) when Print position, Cut position printer is powered on. ML620/ML621 User's Guide 49
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    ), 12/12" (25.40 mm), 13/12" (27.52 mm), User Top of Form For continuous feed, adjusts the -2, -1, 0, +1, +2 line feed to the specified amount. ML620/ML621 User's Guide 50
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    italic) Used to limit printhead travel when printing narrow columns. Select Mode 1 for ML620. Select Mode 1 or Mode 2 for the ML621. Default, Mode1, Mode2 has its own page formatting controls, leave the default setting. To set the printer to go to the next page when it comes within 1" (25 mm)
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    manual form paper advancement or select a time; when printer is idle for .5, 1 or 2 seconds, paper is advanced from the current print position to the tear position. When data 17" (431.8 mm) -2, -1, 0, +1, +2 Default, Mode1, Mode2 6 LPI, 8 LPI Manual, 0.5 sec, 1 sec, 2 sec ML620/ML621 User's Guide 52
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    Specify the length of a cut sheet page. Paper position (print or cut) when printer is powered on. Settings (defaults are set in bold italic) 13.6", 8" 3" ( time from when the paper is set on the tray to when the printer feeds it. Specify the page length of a cut sheet. Invalid, 0.5 sec, 1
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 54
    mm), 12/12" (25.40 mm), 13/12" (27.52 mm), User Top of Form Adjust the line feed in cut sheet mode. -14 ~ -1, 0, +1 ~ +14 ML620/ML621 User's Guide 54
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    a cut sheet page. Specify the wait time from when the paper is set on the tray to when the printer feeds it. Settings (defaults are set in bold italic) Default, Mode1, Mode2 6 LPI, 8 LPI 13.6", (355.6 mm), 17" (431.8 mm) Invalid, 0.5 sec, 1 sec, 1.5 sec, 2 sec, 3 sec ML620/ML621 User's Guide 55
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    are set in bold italic) If you are printing single sheets no longer than 17 inches and wish the printer to acknowledge the menu setting for Top Feed Page Length, change the setting to "by Menu Setting." by mm), 12/12" (25.40 mm), 13/12" (27.52 mm), User Top of Form ML620/ML621 User's Guide 56
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    up your computer while printing, but if you abort the print job, the printer will stop much sooner. 1 Line, 32K, 64K, 128K Set whether to detect paper end or not. To override the sensor and print closer to the bottom of the page, set to OFF. On, Off ML620/ML621 User's Guide 57
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    Registration 3 Print Registration 4 7 or 8 Bits Data Word7 (only displayed for ML Emulation) Function Adjust to the right or left in 1/720" increments. Change this setting to 7 if your system uses 7-bit data word lengths. Settings (defaults are set in bold italic) -10 ~ -1, 0, +1 ~ +10 -10
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    Inhibit To prevent a reset signal from the computer from resetting the printer to its defaults, set to Yes. No, Yes Print Suppress , select No; if it overprints, select Yes. No, Yes If you want the printer to automatically add a carriage return when a Line Feed is received at the end of
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 60
    or not your printer will automatically be selected after you load in paper. If you always use the same Top of Form position, keep the default setting of "Yes". When set to "No", the printer will be deselected so that you can set the Top of Form. No, Yes ML620/ML621 User's Guide 60
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    Print Style Select Quiet Mode Select High Copy Mode Function Set which interface the printer uses to receive printing commands. Sets the length of time before the interface Code Page Only Normal, High Speed, Quiet, High Copy Mode1, Mode2 Mode1, Mode2, Mode3, Mode4 ML620/ML621 User's Guide 61
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    time before the printer 5 min, 10 min, 15 min, 30 min, enters sleep mode (when Sleep 60 min Mode is enabled). In default setting when paper end is detected, printer remains online; if set to Off-line, when paper end is detected, printer goes offline. On-line, Off-line ML620/ML621 User's Guide 62
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    contents immediately. Invalid: causes the printer to ignore the I-Prime command. Select this setting if you wish to enter settings through the printer's control panel which will not be automatically overridden by the software's settings when the I-Prime signal is sent. ML620/ML621 User's Guide 63
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    to ox40 in case of parity error). Change to 7 Bits if your systems uses a 7-bit data format. Set the communications control method. To perform input/output diagnosis of RS-232C interface signals, set X-On / X-Off, Ready/ Busy & X-On / X-Off No, Yes SSD-, SSD+, DTR, RTS ML620/ML621 User's Guide 64
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    protocol (factory default) is engaged, Set the stop bit length. When "checked" is selected the printer checks for the correct number of bits and sends an error if an incorrect number is found. Settings Up, Ready on Select 0.2 sec, 1 sec 1 bit, 2 bit Checked, Unchecked ML620/ML621 User's Guide 65
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    Change to 13.6" to print on wide 8", 13.6" paper. Selects the length of the paper you are using. This enables the printer to keep track of the initial printing position (TOF) on each page. 3" (76.2 mm), 3.25" (82.6 mm), top edge of the page (-) in 1/144" increments. ML620/ML621 User's Guide 66
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    route: the default is to have the printer detect sprocket holes; to turn detection off, set to disable. Right Margin (Continuous paper) If the printer data exceeds the width of the paper, printing is .39" (10 mm), .51" (13 mm), .59" (15 mm), .79" (20 mm), .98" (25 mm) ML620/ML621 User's Guide 67
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    advanced, from the current position, to the tear bar position. If more data is received and processed by the printer, the paper is then automatically reversed feed back to the original printing position. 11 Appears only if the optional Cut Sheet Feeder is installed. ML620/ML621 User's Guide 68
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    usually be removed with soap and water. 1. Make sure the printer is turned OFF. . Open the access cover, set the Paper Thickness lever to position 10 and center the printhead. CAUTION! The printhead may be HOT! . Holding the sides of the ribbon guide, slope it up and out to remove it from the
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    it. insert the pins at both ends of the ribbon cartridge (1) into the U grooves (2) in the printer until the ribbon cartridge is fully locked. . Remove the new ribbon cartridge from its wrapping and note the position of the Ribbon Guide (1), Knob (2), and Pin (3). . In the direction indicated by
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 71
    any ribbon slack. CAUTION! Do not turn the knob counterclockwise as the ribbon may jam. Make sure that the ribbon is not twisted or damaged when it goes through the gap between the printhead and the ribbon guide. 11. Close the access cover and turn the printer back on. ML620/ML621 User's Guide 71
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    the printer with the Power Switch set to ON. 1. Make sure the printer is turned OFF. . Open the access cover. . Tear off any unprinted continuous forms. . Remove the top Paper Tray by holding the tray by the tabs on both sides and pulling it up from the printer. ML620/ML621 User's Guide 72
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    the Pin Tractors and turn the platen knob to push the fragment out of the printer. . When the paper jams are cleared, lower the top Paper Tray and slide it towards the front of the printer until the marks align. . Close the access cover and turn the printer back on. ML620/ML621 User's Guide 73
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    out from the top of the printer. . If a paper fragment remains inside the printer: (a) use tweezers to grip and extract it or (b) insert a triple folded sheet from the Paper Tray and turn the platen knob to pass the folded sheet through and push out the paper fragment. ML620/ML621 User's Guide 74
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    every six months (or after about 300 hours of operation). Moisten a piece of cotton cloth with diluted neutral detergent and carefully wipe the printer exterior. CAUTION! Never use strong solvents or strong detergents on the cabinet-they could damage the housing. ML620/ML621 User's Guide 75
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    printer is turned off before you open the access cover. . Open the access cover and remove the pull‑up roller assembly. . Use a clean, dry cloth to dust around the carriage shaft and platen. Remove any loose bits of paper. . Reinstall the pull‑up roller assembly and close the access cover. ML620
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    in the printer menu is set to 8.5 inches. Otherwise, printing on the platen may damage the printer. See standard to the printer. The top of the printout shows the Printer Model, Emulation ( . Turn off the printer. . Press and hold the SEL + LF/FF keys while turning the printer back on. . When
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 78
    and hold the SEL + LF/FF keys while turning the printer back on. . When only the SEL indicator is blinking, hold down the LF/FF key and press the SEL key. The printer prints the rolling ASCII text page after page. . Turn the power OFF to end the test. ML620/ML621 User's Guide 78
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    turning the printer back on. . When only the SEL indicator is blinking, hold down the SEL key and press the LOAD/EJECT key. To exit the Hexadecimal Dump Mode:  Turn the printer off. Note: In the ASCII format, all non‑printable characters are represented by a period. ML620/ML621 User's Guide 79
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    set?  Are the correct printer drivers being used for the printer? Note: Settings in your software application will normally override any settings in your printer driver. Printer driver settings normally override settings from the printer menu or printer front panel. ML620/ML621 User's Guide 80
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    the SEL key and move the Paper Type lever to the correct setting. Problem with cut sheet feeding. Remove the cut sheet. Print data is received but printing does not start because no paper is being fed. . If the indicator lights continue to flash, contact your dealer. ML620/ML621 User's Guide 81
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    if it works. The printer driver is not installed properly. The printer has just stopped printing. There is no paper in the printer. Interface cable is disconnected. Wrong interface cable attached. The ribbon cartridge has not been installed. Re-install the printer driver correctly. Press the SEL
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 83
    ribbon with a new one. The ribbon cartridge is not installed correctly. The ribbon has been wound incorrectly. Reinstall the ribbon cartridge correctly. Replace the ribbon cartridge with a new one. The ribbon applications according to priority. Initialize the printer. ML620/ML621 User's Guide 83
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 84
    PROBLEM hex-dump mode and verify the data content. Make corrections in the application not correctly selected. Initialize the printer. Select correct TOF for cut selected. Incorrect positions of the Paper Guide or Pin Tractors. Select and printer. Leave enough top and bottom margin in
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 85
    PROBLEM CAUSE The content of a single line is The left and/or right guide. Load sheets to the end. Eject the continuous forms and select the printer's cut sheet mode. Load sheets to the end. Change paper. Use paper types specified for the printer. Press the LOAD/EJECT key. ML620/ML621 User's Guide
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 86
    PROBLEM CAUSE Improper continuous forms feed . Remove the blockage. Move the paper source nearer to the printer. Use paper types specified for this printer. Cancel the skip-over perforation spacing. Match the paper length selected lever to continuous forms mode. ML620/ML621 User's Guide 86
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 87
    PROBLEM Paper feed operations for both cut sheets and continuos forms are actuated. CAUSE The cut sheet is not ejected. SOLUTION Eject the cut sheet. ML620/ML621 User's Guide 87
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 88
    .  Consult the dealer where your purchased your printer.  Locate an Authorized Oki Data Reseller by visiting one of our web sites http://my.okidata.com (allows you to register your product and personalize your own support needs) http://www.okiprintingsolutions.com (provides general information
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 89
    Consumables Item Model ML620 Ribbon Model ML621 Ribbon Part Number 44173403 44173404 Accessories Option Model ML620 Tractor Assembly (Pull) Tractor Assembly (Push) Cut Sheet Feeder Model 44753901 44454901 44497401 44754001 44455001 44497501 72008701 44455101 70023301 ML620/ML621 User's Guide 89
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 90
    it: 1. Place the CD in your CD‑ROM drive and wait for it to AutoPlay. . Select your printer model, then click Continue. . Click Documentation and follow the on‑screen prompts to view the file. IBM Set II ESC 6 Decimal 8 13 18 27 58 27 103 27 15 15 27 55 27 54 ML620/ML621 User's Guide 90
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 91
    37 53 n 27 74 n 27 93 27 53 49 27 53 48 27 48 27 49 27 65 n 27 50 27 37 57 n 27 51 n ML620/ML621 User's Guide 91
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 92
    Draft Select NLQ Gothic Select NLQ Courier ESC # 0 ESC 1 0 ESC 1 2 ESC 1 3 Print Suppress Mode On ML620 ESC Q ETX ML621 ESC Q SYN Print Suppress Mode Off DC1 Proportional Spacing On ESC P 1 Proportional Spacing Off ESC P 45 49 27 45 48 27 85 49 27 85 48 11 ML620/ML621 User's Guide 92
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 93
    77 w/ Carriage Return LF 10 n/216" (n = 0 to 255) ESC J n 27 74 n n/144" (n = 0 to 127) ESC % 5 n 27 37 53 n Reverse, n/216" (n = 0 to 255) ESC j n 27 106 n ML620/ML621 User's Guide 93
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 94
    On DC3 Print Suppress Mode Off DC1 Proportional Spacing On ESC p 1 Proportional Spacing Off ESC p 0 Reset Printer Clear Buffer & Initialize ESC @ Clear Print Buffer CAN Skip Over Perforation, Cancel ESC O Software I-Prime 49 27 45 48 27 60 27 85 49 27 85 48 11 ML620/ML621 User's Guide 94
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 95
    48 27 33 49 27 33 50 27 33 90 27 33 64 27 33 65 27 31 49 27 31 48 31 Oki Command ASCII Emphasized Printing On ESC T Emphasized Printing Off ESC I Enhanced Printing On Enhanced Printing Off ESC H ESC I Form 37 53 n 27 10 27 54 27 56 27 37 57 n 27 71 n n 27 37 83 48 ML620/ML621 User's Guide 95
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 96
    51 27 48 27 62 27 60 19 17 27 89 27 90 24 15 14 27 125 0 Oki Command Subscript Printing On Subscript Printing Off Superscript Printing On Superscript Printing Off Underline Printing On Underline Printing Off Decimal 27 76 27 77 27 74 27 75 27 67 27 68 27 45 27 61 11 ML620/ML621 User's Guide 96
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 97
    mode at 25% duty and 35% page density Reliability Ribbon Life ML620: approx. 8 million characters (Utility Mode) ML621: approx Oki MICROLINE Standard Physical Specifications Note: Height dimensions do not include the acoustic cover. ML620 Size (WxDxH): 16.3 x 12.6 x 6.26" (414 x 320
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 98
    136 cpl 163 cpl 204 cpl 233 cpl 272 cpl Graphics Resolution Emulation IBM, Epson Oki MICROLINE Density Single Double Quadruple Single Double Quadruple Resident Fonts Print Quality Near Letter Quality 288 x 144 dpi Available Fonts Courier, Gothic Gothic Gothic Gothic ML620/ML621 User's Guide 98
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 99
    (±2%) Power Consumption: Printing: max. 59 W (ISO 10561 Letter, Draft, Range1) Idle: max. 15 W Sleep mode: max. 1.5 W (with no option attached) max. 3.7 W (with full options attached) ML620/ML621 User's Guide 99
  • Oki ML620 | ML620, ML621 Users' Guide - English - Page 100
    m2 Thickness 0.002 - 0.0055" (0.05 - 0.14 mm) NOTE: Multi-part cut sheet paper cannot be used. Continuous Paper Paper Width ML620 3 - 10" (76.2 - 254 mm) ML621 3 - 16" (76.2 - 406.4 mm) Single-part weight 45 - 90 on both sides, and should be free of wrinkles. ML620/ML621 User's Guide 100
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User's Guide
59320101
my.okidata.com
RT322
ML620/ML621