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HP Officejet Pro L7400 User Guide - Page 62

Check printhead health, Print the print quality diagnostic Self-Test Diagnostic

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Chapter 8 When the quality of printouts deteriorates, complete the relevant steps based on the following sequence: 1. Check the health of the printheads. For more information, see Check printhead health. 2. Print the print quality diagnostic page on a clean sheet of white paper. Evaluate any problem areas, and perform the recommended actions. For more information, see Print the print quality diagnostic page. 3. Manually clean the printhead contacts. For more information, see Clean the printheads. 4. Replace the printheads if the problems persist after cleaning. For more information, see Replace the printheads. CAUTION: HP is not responsible for damage to the device that results from modifying the printheads. Check printhead health Use one of the following means to check the printhead health. If the status of any printhead is not good or fair, then perform one or more of the maintenance functions, or clean or replace the printhead. • Self-Test Diagnostic page: Print the self-test diagnostic page on a clean sheet of white paper, and check the printhead health section. For more information, see Understand the self-test diagnostic page. • Toolbox (Windows): Open the Toolbox. For more information, see Open the Toolbox. Click the Information tab, and then click Printhead Health. • HP Printer Utility (Mac OS): Open the HP Printer Utility. For more information, see Open the HP Printer Utility. Select Supply Status tab, and then click Printhead. Print the print quality diagnostic page Use the print quality diagnostic page to diagnose issues affecting the print quality. This will help you decide whether to run any maintenance tools to improve the print quality of your printouts. You can also view the ink level information, and the printhead health status on the page. • Control panel: Press the Setup button, select Print Report, select Print Quality Page, and then press OK. • Toolbox (Windows): Click the Services tab, and then click Print PQ (print quality) diagnostic page and follow the onscreen instructions. • HP Printer Utility (Mac OS): Click Print Quality Diagnostics from the Information and Support panel. 58 Maintain and troubleshoot

Section	Page
Contents	5
Get started	10
Find other resources for the product	10
Understand the device parts	11
Front view	12
Printing supplies area	12
Back view	13
Control panel buttons and lights	13
Connection information	14
Install the accessories	15
Install the duplexer	15
Install Tray 2	15
Turn on accessories in the print driver	16
To turn on accessories on Windows computers	17
To turn on accessories on Macintosh computers	17
Use the device	18
Use control panel menus	18
Control-panel message types	18
Status messages	18
Warning messages	19
Error messages	19
Critical error messages	19
Change device settings	19
Use the HP Solution Center (Windows)	20
Use the HP photo and imaging software	20
Load originals	21
Load an original on the scanner glass	21
Select print media	22
Tips for selecting and using print media	22
Understand specifications for supported media	23
Understand supported sizes	23
Understand supported media types and weights	26
Set minimum margins	27
Load media	27
Configure trays	30
Print on special and custom-sized media	31
Print borderless	32
Print	34
Change print settings	34
Change settings from an application for current jobs (Windows)	34
Change default settings for all future jobs (Windows)	34
Change settings (Mac OS)	34
Print on both sides (duplexing)	35
Guidelines for printing on both sides of a page	35
Perform duplexing	35
Cancel a print job	37
Copy	38
Make copies from the control panel	38
Change the copy settings	38
Set the number of copies	39
Set the copy paper size	39
Set the copy paper type	39
Change copy speed or quality	40
Resize an original to fit onto letter or A4 paper	41
Copy a legal-size document onto letter paper	41
Adjust the lightness and darkness of your copy	42
Enhance blurred areas of your copy	42
Enhance light areas of your copy	43
Cancel a copy job	43
Scan	44
Scan an original	44
Scan an original to a program on a computer (direct connection)	44
Scan from a TWAIN-compliant or a WIA-compliant program	45
Scan from a TWAIN-compliant program	45
Scan from a WIA-compliant program	45
Edit a scanned original	45
Edit a scanned photo or graphic	46
Edit a scanned document using optical character recognition (OCR) software	46
Change scan settings	46
Cancel a scan job	46
Configure and manage	47
Manage the device	47
Monitor the device	48
Administer the device	48
Use device management tools	48
Toolbox (Windows)	49
Open the Toolbox	49
Toolbox tabs	49
HP Printer Utility (Mac OS)	50
Open the HP Printer Utility	50
HP Printer Utility panels	50
HP Instant Support	51
Security and privacy	51
To gain access to HP Instant Support	51
myPrintMileage	52
Understand the self-test diagnostic page	52
Configure the device (Windows)	54
Direct connection	54
Install the software before connecting the device (recommended)	54
Connect the device before installing the software	55
Share the device on a locally shared network	55
Configure the device (Mac OS)	56
Install the software for a direct connection	56
Share the device on a locally shared network	56
Uninstall and reinstall the software	57
Maintain and troubleshoot	60
Supported ink cartridges	60
Replace the ink cartridges	60
Maintain the printheads	61
Check printhead health	62
Print the print quality diagnostic page	62
Align the printheads	63
Calibrate the linefeed	64
Clean the printheads	64
Clean the printhead contacts manually	64
Replace the printheads	67
Store printing supplies	68
Store ink cartridges	69
Store printheads	69
Clean the device	69
Clean the scanner glass	69
Clean the exterior	70
Troubleshooting tips and resources	70
Solve printing problems	70
The device shuts down unexpectedly	71
Error message appears on control-panel display	71
The device is not responding (nothing prints)	71
Device does not accept printhead	72
Device takes a long time to print	72
Blank or partial page printed	72
Something on the page is missing or incorrect	73
Placement of the text or graphics is wrong	73
The device prints half a page, then ejects the paper	74
Poor print quality and unexpected printouts	74
Poor quality printouts	75
Meaningless characters print	75
Ink is smearing	76
Ink is not filling the text or graphics completely	76
Output is faded or dull colored	76
Colors are printing as black and white	76
Wrong colors are printing	77
Printout shows bleeding colors	77
Colors do not line up properly	77
Lines or dots are missing from text or graphics	77
Solve paper-feed problems	77
Optional Tray 2 cannot be inserted	78
Another paper-feed problem is occurring	78
Solve copy problems	79
No copy came out	79
Copies are blank	80
Documents are missing or faded	80
Size is reduced	80
Copy quality is poor	80
Copy defects are apparent	81
The device prints half a page, then ejects the paper	81
Solve scan problems	81
Scanner did nothing	82
Scan takes too long	82
Part of the document did not scan or text is missing	82
Text cannot be edited	83
Error messages appear	83
Scanned image quality is poor	83
Scan defects are apparent	84
Troubleshoot installation issues	85
Hardware installation suggestions	85
Software installation suggestions	86
Clear jams	87
Clear a jam in the device	87
Tips for avoiding jams	89
HP supplies and accessories	90
Order printing supplies online	90
Accessories	90
Supplies	90
Ink cartridges	90
Printheads	91
HP media	91
Support and warranty	92
Hewlett-Packard limited warranty statement	93
Obtain electronic support	94
Obtain HP telephone support	94
Before you call	94
Support process	95
HP support by phone	95
Phone support period	95
Telephone support numbers	95
Placing a call	97
After the phone support period	97
Additional warranty options	97
HP Quick Exchange Service (Japan)	98
Call HP Korea customer support	98
Prepare the device for shipment	99
Remove the ink cartridges and printheads before shipment	99
Remove the control-panel faceplate	100
Pack the device	101
Device specifications	103
Physical specifications	103
Product features and capacities	103
Processor and memory specifications	103
System requirements	104
Print specifications	105
Copy specifications	105
Scan specifications	105
Environmental specifications	105
Electrical specifications	106
Acoustic emission specifications (print in Draft mode, noise levels per ISO 7779)	106
Regulatory information	107
FCC statement	108
Notice to users in Korea	108
VCCI (Class B) compliance statement for users in Japan	109
Notice to users in Japan about the power cord	109
RoHS notices (China only)	109
LED indicator statement	109
Regulatory model number	109
Declaration of conformity	110
Environmental product stewardship program	111
Paper use	111
Plastics	111
Material safety data sheets	111
Product restricted material	111
Recycling program	111
HP inkjet supplies recycling program	111
Disposal of waste equipment by users in private households in the European Union	112
Energy consumption	112

Match case Limit results 1 per page

When the quality of printouts deteriorates, complete the relevant steps based on the

following sequence:

Check the health of the printheads. For more information, see

Check

printhead

health

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

any problem areas, and perform the recommended actions. For more information,

see

the

quality

diagnostic

page

Manually clean the printhead contacts. For more information, see

Clean

the

printheads

Replace the printheads if the problems persist after cleaning. For more

information, see

Replace

the

printheads

CAUTION:

HP is not responsible for damage to the device that results from

modifying the printheads.

Check printhead health

Use one of the following means to check the printhead health. If the status of any

printhead is not good or fair, then perform one or more of the maintenance functions,

or clean or replace the printhead.

•

Self-Test Diagnostic page:

Print the self-test diagnostic page on a clean sheet of

white paper, and check the printhead health section. For more information, see

Understand

the

self-test

diagnostic

page

•

Toolbox (Windows):

Open the Toolbox. For more information, see

Open

the

Toolbox

. Click the

Information

tab, and then click

Printhead Health

•

HP Printer Utility (Mac OS):

Open the HP Printer Utility. For more information,

see

Open

the

Printer

Utility

. Select

Supply Status

tab, and then click

Printhead

Print the print quality diagnostic page

Use the print quality diagnostic page to diagnose issues affecting the print quality. This

will help you decide whether to run any maintenance tools to improve the print quality

of your printouts. You can also view the ink level information, and the printhead health

status on the page.

•

Control panel:

Press the

Setup

button, select

Print Report

, select

Print Quality

Page

, and then press

•

Toolbox (Windows):

Click the

Services

tab, and then click

Print PQ (print

quality) diagnostic page

and follow the onscreen instructions.

•

HP Printer Utility (Mac OS):

Click

Print Quality Diagnostics

from the

Information and Support

panel.

Chapter 8

Maintain and troubleshoot