HP 1200 Service Manual - Page 150

Solving copying and scanning paper-feed problems, Table 20. - laserjet will not print multiple copies

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Solving copying and scanning paper-feed problems Table 20. Solving copying and scanning paper-feed problems Problem Long pages stop feeding through the copier/ scanner. Scanned items are crooked. The copier/ scanner feeds multiple sheets or jams frequently from the media input tray. Cause The document is too long. The paper delivery sensor is damaged. The media input tray guides are not set correctly, are broken, or are missing. The media input tray guides are not adjusted properly. The media input tray is overfilled. The item was too thick, too slick, or otherwise did not meet specifications. The copier/scanner pickup roller is dirty. The copier/scanner pickup roller is damaged or worn. The copier/scanner separation pad is dirty, damaged, or worn. The sensor is not operating properly. There is a problem in the copier/scanner path. Solution The maximum document length is 889 mm (35 inches). If your document is too long, copy each segment of it and scan the copies. Free the paper delivery sensor. If you cannot free it, replace it. Be sure to center the paper with the media input tray guides. Verify that the guides are not adjusted too tightly or too loosely against the paper. Check for broken or missing guides and replace as necessary. Remove the document from the media input tray. Straighten the item, then reinsert it. Slide the guides against the sides of the item to center it. Make sure the guides are not adjusted too tightly. Remove some of the sheets. The media input tray can hold up to 30 pages, depending on the thickness of the pages. Make sure that the media meets specifications detailed in the Print Media Guide for the HP LaserJet printer family. Clean the copier/scanner pickup roller. (See the user guide.) Replace the copier/scanner pickup roller. (See the user guide). Replace the copier/scanner separation pad. (See "Replacing the copier/scanner separation pad" on page 45.) Check the sensor to make sure it is not jammed. If a sensor cannot be corrected, replace the copier/scanner assembly. Check the path for obstructions. Readjust as necessary or replace the copier/scanner assembly. 148 Chapter 6 - Troubleshooting EN

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148
Chapter 6 - Troubleshooting
EN
Solving copying and scanning paper-feed
problems
Table 20.
Solving copying and scanning paper-feed problems
Problem
Cause
Solution
Long pages
stop feeding
through the
copier/
scanner.
The document is too long.
The maximum document length is 889
mm (35 inches). If your document is too
long, copy each segment of it and scan
the copies.
The paper delivery sensor is damaged.
Free the paper delivery sensor. If you
cannot free it, replace it.
Scanned items
are crooked.
The media input tray guides are not set
correctly, are broken, or are missing.
Be sure to center the paper with the
media input tray guides. Verify that the
guides are not adjusted too tightly or too
loosely against the paper. Check for
broken or missing guides and replace as
necessary.
The copier/
scanner feeds
multiple
sheets or jams
frequently
from the media
input tray.
The media input tray guides are not
adjusted properly.
Remove the document from the media
input tray. Straighten the item, then
reinsert it. Slide the guides against the
sides of the item to center it. Make sure
the guides are not adjusted too tightly.
The media input tray is overfilled.
Remove some of the sheets. The media
input tray can hold up to 30 pages,
depending on the thickness of the pages.
The item was too thick, too slick, or
otherwise did not meet specifications.
Make sure that the media meets
specifications detailed in the
Print Media
Guide
for the HP LaserJet printer family.
The copier/scanner pickup roller is dirty.
Clean the copier/scanner pickup roller.
(See the user guide.)
The copier/scanner pickup roller is
damaged or worn.
Replace the copier/scanner pickup roller.
(See the user guide).
The copier/scanner separation pad is
dirty, damaged, or worn.
Replace the copier/scanner separation
pad. (See “Replacing the copier/scanner
separation pad” on page 45.)
The sensor is not operating properly.
Check the sensor to make sure it is not
jammed. If a sensor cannot be corrected,
replace the copier/scanner assembly.
There is a problem in the copier/scanner
path.
Check the path for obstructions.
Readjust as necessary or replace the
copier/scanner assembly.