Improving print quality

background image

Improving print quality

This section provides information about identifying and correcting print defects.

Light print or fade

The toner supply is low. See

Managing the toner cartridge

for more information.

The media might not meet Hewlett-Packard’s media specifications (for example, the media is
too moist or too rough). See

Printer media specifications

for more information.

If the whole page is light, the print density adjustment is too light or EconoMode might be
turned on. Access the printer properties. See

Printer properties (driver)

for instructions. Click

the

Configure

tab, and adjust the

Print Density

setting. Click the

Finishing

tab, and clear the

EconoMode (Save Toner)

check box. See

Saving toner

for more information.

Toner specks

The media might not meet Hewlett-Packard’s media specifications (for example, the media is
too moist or too rough). See

Printer media specifications

for more information.

The printer might need to be cleaned. See

Cleaning the printer

or

Cleaning the printer media

path

for instructions.

Dropouts

A single sheet of media might be defective. Try reprinting the job.

The media’s moisture content is uneven or the media has moist spots on its surface.
Try printing with new media. See

Printer media specifications

for more information.

The media lot is bad. The manufacturing processes can cause some areas to reject toner.
Try a different type or brand of media.

The toner cartridge might be defective. See

Managing the toner cartridge

for more

information.

Vertical lines

Make sure that the input tray cover is in place.

The photosensitive drum inside the toner cartridge has probably been scratched. Install a new
HP toner cartridge. See

Changing the toner cartridge

for instructions.

Gray background

Make sure that the input tray cover is in place.

Access the printer properties. See

Printer properties (driver)

for instructions. Click the

Configure

tab, and decrease the

Print Density

setting. This decreases the amount of

background shading.

Change the media to a lighter basis weight. See

Printer media specifications

for more

information.

Check the printer’s environment. Very dry (low humidity) conditions can increase the amount
of background shading.

Install a new HP toner cartridge. See

Changing the toner cartridge

for instructions.

background image

46 Chapter 6 Troubleshooting the printer

ENWW

Toner smear

If toner smears appear on the leading edge of the media, the media guides might be dirty.
Wipe the media guides with a dry, lint-free cloth. See

Identifying the printer’s components

or

Cleaning the printer

for more information.

Check the media type and quality.

Try installing a new HP toner cartridge. See

Changing the toner cartridge

for instructions.

The fuser temperature might be too low. Access the printer properties. See

Printer properties

(driver)

for instructions. Click the

Paper

tab, and make sure that you have selected the

appropriate media from the

Optimize for

drop-down list.

Loose toner

Clean the inside of the printer. See

Cleaning the printer

for instructions.

Check the media type and quality. See

Printer media specifications

for more information.

Try installing a new HP toner cartridge. See

Changing the toner cartridge

for instructions.

Access the printer properties. See

Printer properties (driver)

for instructions. Click the

Paper

tab, and make sure that you have selected the appropriate media from the

Optimize for

drop-down list.

Plug the printer directly into an AC outlet instead of into a power strip.

Vertical repetitive defects

The toner cartridge might be damaged. If a repetitive mark occurs at the same spot on the
page, install a new HP toner cartridge. See

Changing the toner cartridge

for instructions.

The internal parts might have toner on them. See

Cleaning the printer

for more information.

If the defects occur on the back of the page, the problem will probably correct itself after a few
more printed pages.

Access the printer properties. See

Printer properties (driver)

for instructions. Click the

Paper

tab, and make sure that you have selected the appropriate media from the

Optimize for

drop-down list.

Improperly formed characters

If characters are improperly formed, producing hollow images, the media stock might be too
slick. Try a different media. See

Printer media specifications

for more information.

If characters are improperly formed, producing a wavy effect, the printer might need service.
Print the Windows test page. If the characters are improperly formed, contact an
HP-authorized dealer or service representative. See

Service and support

for more

information.

Page skew

Make sure that the media is loaded correctly and the media guides are not too tight or too
loose against the media stack. See

Loading media into the input tray

for more information.

The input tray might be too full. See

Loading media into the input tray

for more information.

Check the media type and quality. See

Printer media specifications

for more information.

background image

ENWW

Improving print quality 47

Curl or wave

Check the media type and quality. Both high temperature and humidity cause media to curl.
See

Printer media specifications

for more information.

The media might have been in the input tray too long. Turn over the stack of media in the tray.
Also, try rotating the media 180° in the input tray.

Open the straight-through output door and try printing straight through. See

Printer output

paths

for more information.

The fuser temperature might be too high. Access the printer properties. See

Printer properties

(driver)

for instructions. Click the

Paper

tab, and make sure that you have selected the

appropriate media from the

Optimize for

drop-down list.

Wrinkles or creases

Make sure that the media is loaded properly. See

Loading media into the input tray

for more

information.

Check the media type and quality. See

Printer media specifications

for more information.

Open the straight-through output door and try printing straight through. See

Printer output

paths

for more information.

Turn over the stack of media in the tray. Also, try rotating the media 180° in the input tray.

Toner scatter outline

Access the printer properties. See

Printer properties (driver)

for instructions. Click the

Configure

tab, and select

On

in

Transfer Setting

.

If large amounts of toner have scattered around the characters, the media might be resisting
the toner. (A small amount of toner scatter is normal for laser printing.) Try a different media
type. See

Printer media specifications

for more information.

Turn over the stack of media in the tray.

Use media designed for laser printers. See

Printer media specifications

for more information.

background image

48 Chapter 6 Troubleshooting the printer

ENWW