HP 1200 Service Manual - Page 143

Repetitive, vertical, defects, appear on the, printed Characters, are misformed, and are - laserjet paper roller

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Table 17. Solving print image-quality problems (continued) Problem Repetitive vertical defects appear on the printed page. Cause If the repetitive mark occurs at equal distance between marks, either the toner cartridge or a printer roller is damaged. The internal parts have toner on them. Solution Use the defect ruler to identify the spacing. Check the appropriate component and replace if necessary. (See "Repetitive image defect ruler" on page 161.) If the defects occur on the back of the page, the problem will probably correct itself after a few more printed pages. Characters are misformed and are producing hollow images. The printer driver is not set for the correct media. The media is too slick. The printer driver is not set for the correct media. Otherwise, clean the printer. (See "Cleaning the print path" on page 47.) 1. Select Optimize for: in the Paper tab of the printer driver. Select the correct media. (This affects the current print job only.) 2. Select the correct media through the device configuration utility. Try a different media. Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family. 1. Select Optimize for: in the Paper tab of the printer driver. Select the correct media. (This affects the current print job only.) 2. Select the correct media through the device configuration utility. Pages are skewed. The media is loaded incorrectly. The input tray is too full. The type and quality of media you are using does not meet HP's specifications. Reload the media, and make sure that the media guides are not too tight or too loose against the media stack. Remove some of the sheets. The main input tray can hold up to 250 sheets of 20-lb (75 g/m2) bond weight paper (less for heavier paper) or from 20 to 30 envelopes. The priority input tray can hold up to ten sheets of 20-lb (75 g/m2) bond weight paper (one sheet of heavier paper) or one envelope. Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family. EN Errors 141

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EN
Errors
141
Repetitive
vertical
defects
appear on the
printed page.
If the repetitive mark occurs at equal
distance between marks, either the toner
cartridge or a printer roller is damaged.
Use the defect ruler to identify the
spacing. Check the appropriate
component and replace if necessary.
(See “Repetitive image defect ruler” on
page 161.)
The internal parts have toner on them.
If the defects occur on the back of the
page, the problem will probably correct
itself after a few more printed pages.
Otherwise, clean the printer. (See
“Cleaning the print path” on page 47.)
The printer driver is not set for the correct
media.
1. Select
Optimize for:
in the
Paper
tab
of the printer driver. Select the correct
media. (This affects the current print job
only.)
2. Select the correct media through the
device configuration utility.
Characters
are misformed
and are
producing
hollow
images.
The media is too slick.
Try a different media. Make sure that the
media meets specifications detailed in
the
Print Media Guide
for the
HP LaserJet printer family.
The printer driver is not set for the correct
media.
1. Select
Optimize for:
in the
Paper
tab
of the printer driver. Select the correct
media. (This affects the current print job
only.)
2. Select the correct media through the
device configuration utility.
Pages are
skewed.
The media is loaded incorrectly.
Reload the media, and make sure that
the media guides are not too tight or too
loose against the media stack.
The input tray is too full.
Remove some of the sheets. The main
input tray can hold up to 250 sheets of
20-lb (75 g/m
2
) bond weight paper (less
for heavier paper) or from 20 to 30
envelopes. The priority input tray can
hold up to ten sheets of 20-lb (75 g/m
2
)
bond weight paper (one sheet of heavier
paper) or one envelope.
The type and quality of media you are
using does not meet HP’s specifications.
Make sure that the media meets
specifications detailed in the
Print Media
Guide
for the HP LaserJet printer family.
Table 17.
Solving print image-quality problems (continued)
Problem
Cause
Solution