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HP K550 User's Guide - Page 50

Blank printed, Something on the is missing or incorrect - ink cartridge

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Check the printer software settings ▲ The printer prints slower when Best or Maximum dpi is selected as the print quality. To increase the print speed, select different print settings in the printer driver. See Changing print settings. Check for radio interference ▲ If the printer is connected using wireless communication and is printing slowly, then the radio signal might be weak. See Guidelines for reducing interference on a wireless network. Blank page printed Check for empty ink cartridges ▲ Check the printer lights to see which cartridge is low (see Interpreting control panel lights). The Toolbox (Windows), HP Printer Utility (Mac OS), and the configuration page (see Understanding the configuration page) provide information about ink levels. If you are printing black text and a blank page prints, the black cartridge might be empty. See Replacing the ink cartridges. Check the media settings ● Make sure you select the correct print quality settings in the printer driver for the media loaded in the trays. ● Make sure the page settings in the printer driver match the page size of media loaded in the tray. Something on the page is missing or incorrect Check the printheads ▲ Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions (see To print the print quality diagnostic page). Check the margin settings ▲ Make sure the margin settings for the document do not exceed the printable area of the printer. See Setting minimum margins. Check the color print settings ▲ Make sure Print in Grayscale is not selected in the printer driver. Check the printer location and length of USB cable ▲ High electromagnetic fields (such as those generated by USB cables) can sometimes cause slight distortions to printouts. Move the printer away from the source of the electromagnetic fields. Also, it is recommended that you use a USB cable that is less than 3 meters (9.8 feet) long to minimize the effects of these electromagnetic fields. Placement of the text or graphics is wrong Check how the media is loaded ▲ Make sure the media width and length guides fit snugly against the edges of the stack of media, and make sure the trays are not overloaded. See Loading media. 42 Chapter 4 Maintaining and troubleshooting ENWW

Section	Page
Getting started	9
Finding other resources for the product	10
Accessibility	12
Understanding the printer parts	13
Front view	13
Control panel	14
Back view	15
Installing the accessories	17
Installing the duplex unit	18
Installing tray 2	19
Using the printer	21
Selecting print media	22
Tips for selecting and using print media	22
Understanding specifications for supported media	23
Understanding supported sizes	23
Understanding supported media types and weights	25
Setting minimum margins	25
Loading media	27
Configuring trays	29
Changing print settings	30
To change settings from an application for current jobs (Windows)	30
To change default settings for all future jobs (Windows)	30
To change settings (Mac OS)	30
Canceling a print job	31
Printing on both sides (duplexing)	32
Guidelines for printing on both sides of a page	32
To perform duplexing (Windows)	32
To perform automatic duplexing (Mac OS)	33
Printing on special and custom-sized media	34
To print on special or custom-sized media (Windows)	34
To print on special or custom-sized media (Mac OS)	34
Maintaining and troubleshooting	37
Replacing the ink cartridges	38
Maintaining the printheads	39
To check printhead health	39
To print the print quality diagnostic page	39
To align the printheads	41
To calibrate the linefeed	41
To clean the printheads	41
To clean the printhead contacts manually	42
To replace the printheads	44
Calibrating the color	45
Troubleshooting tips and resources	46
General troubleshooting tips	47
Resolving printing problems	48
Printer shuts down unexpectedly	48
All printer lights are on	48
Printer is not responding (nothing prints)	48
Printer does not accept printhead	49
Printer takes a long time to print	49
Blank page printed	50
Something on the page is missing or incorrect	50
Placement of the text or graphics is wrong	50
Poor print quality and unexpected printouts	52
Poor quality printouts	52
Meaningless characters print	52
Ink is smearing	53
Ink is not filling the text or graphics completely	53
Output is faded or dull colored	53
Colors are printing as black and white	54
Wrong colors are printing	54
Printout shows bleeding colors	54
Colors do not line up properly	54
Lines or dots are missing from text or graphics	54
Resolving paper-feed problems	55
Tray cannot be inserted	55
Another paper-feed problem is occurring	55
Resolving printer management problems	57
Embedded Web server cannot be opened	57
Troubleshooting installation issues	58
Problems printing an alignment page	58
Problems installing software	58
Problems connecting to a network	58
Problems connecting to a wired network	59
Problems setting up or using wireless communication	59
Clearing jams	62
To clear a jam	62
To avoid jams	64
Printer lights reference	65
Interpreting control panel lights	66
Interpreting network connector lights	70
Configuring and managing the printer	73
Managing the printer	74
Overview of printer management tasks	74
Monitor the printer	75
Administer the printer	75
Configure network settings	76
Overview of printer management tools	77
Embedded Web server	77
To open the embedded Web server	77
Embedded Web server pages	77
Toolbox (Windows)	78
To open the Toolbox	78
Toolbox tabs	78
HP Printer Utility (Mac OS)	79
To open the HP Printer Utility	79
HP Printer Utility panels	80
Network Printer Setup Utility (Mac OS)	80
HP Web Jetadmin software	80
HP Instant Support	81
Security and privacy	81
To gain access to HP Instant Support	82
myPrintMileage	82
Understanding the configuration page	83
Configuring the printer (Windows)	87
Direct connection	87
To install the software before connecting the printer (recommended)	87
To connect the printer before installing the software	88
To share the printer on a locally shared network	88
Network Connection	89
To install a network printer	89
To install the printing software on client computers	90
To install the printer driver using Add Printer	90
Configuring the printer (Mac OS)	91
To install the software for network or direct connection (Mac OS X (10.2, 10.3, 10.4))	91
To share the printer on a locally shared network (Mac OS X (10.2, 10.3, 10.4))	91
Setting up the printer for wireless communication (HP Officejet Pro K550dtwn)	93
Understanding 802.11 wireless network settings	93
To set up the printer on an ad hoc network (Mac OS)	95
To set up the printer for wireless communication (Windows)	95
To set up wireless communication using SecureEasySetup (SES)	96
To set up wireless communication for multiple printers (Windows only)	97
To turn off wireless communication	97
Guidelines for reducing interference on a wireless network	98
Guidelines for ensuring wireless network security	98
Uninstalling the printer software	100
To uninstall the printer software (Windows)	100
To uninstall the printer software (Mac OS)	100
HP supplies and accessories	103
Ordering printing supplies online	104
Accessories	105
Supplies	106
Support and warranty	107
Obtaining electronic support	108
Obtaining HP telephone support	109
Before you call	109
Telephone support numbers	109
Hewlett-Packard limited warranty statement	113
Extent of limited warranty	113
Limitations of warranty	114
Limitations of liability	114
Local law	114
HP Inkjet Supplies - Warranty Quick Reference	116
Is your product covered under warranty?	116
HP Inkjet Supplies Expiration	116
How do you return a product?	116
Printer specifications	117
Regulatory information	123
FCC statement	124
Shielded cables	124
Exposure to radio frequency radiation	124
Other regulatory information	125
Regulatory information for wireless products	126
Notice to users in Canada/Note à l'attention des utilisateurs Canadien	126
Notice to users in Brail/Notificação de Normas de Uso de Dispositivos Sem Fio do Brasil	126
Notice to users in Italy	126
Notice to users in France	126
Notice to users in the European Union	127
Declaration of conformity	128
Environmental sustainability program	130
Reduction and elimination	130
Power consumption	130
Material safety data sheets	130
Recycling	131
Product packaging	131
Plastics	131
Disposal of waste equipment by users in private households in the European Union	131
HP products and supplies	131

Match case Limit results 1 per page

Check the printer software settings

▲

The printer prints slower when

Best

Maximum dpi

is selected as the print quality. To increase

the print speed, select different print settings in the printer driver. See

Changing

settings

Check for radio interference

▲

If the printer is connected using wireless communication and is printing slowly, then the radio

signal might be weak. See

Guidelines

for

reducing

interference

wireless

network

Blank page printed

Check for empty ink cartridges

▲

Check the printer lights to see which cartridge is low (see

Interpreting

control

panel

lights

). The

Toolbox (Windows), HP Printer Utility (Mac OS), and the configuration page (see

Understanding

the

configuration

page

) provide information about ink levels. If you are printing black text and a

blank page prints, the black cartridge might be empty. See

Replacing

the

ink

cartridges

Check the media settings

●

Make sure you select the correct print quality settings in the printer driver for the media loaded in

the trays.

●

Make sure the page settings in the printer driver match the page size of media loaded in the tray.

Something on the page is missing or incorrect

Check the printheads

▲

Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem

areas, and perform the recommended actions (see

the

quality

diagnostic

page

Check the margin settings

▲

Make sure the margin settings for the document do not exceed the printable area of the printer.

See

Setting

minimum

margins

Check the color print settings

▲

Make sure

Print in Grayscale

is not selected in the printer driver.

Check the printer location and length of USB cable

▲

High electromagnetic fields (such as those generated by USB cables) can sometimes cause

slight distortions to printouts. Move the printer away from the source of the electromagnetic

fields. Also, it is recommended that you use a USB cable that is less than 3 meters (9.8 feet)

long to minimize the effects of these electromagnetic fields.

Placement of the text or graphics is wrong

Check how the media is loaded

▲

Make sure the media width and length guides fit snugly against the edges of the stack of media,

and make sure the trays are not overloaded. See

media

Chapter 4

Maintaining and troubleshooting

ENWW