HP P 1100 Service Manual

LASERJET PROFESSIONAL P1100
SERIES PRINTER 
Service Manual
www.hp.com/support/ljp1100series 

HP LaserJet Professional P1100 Printer
series
Service Manual 

Copyright and License
© 2010 Copyright Hewlett-Packard
Development Company, L.P.
Reproduction, adaptation, or translation
without prior written permission is prohibited,
except as allowed under the copyright laws.
The information contained herein is subject
to change without notice.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products
and services. Nothing herein should be
construed as constituting an additional
warranty. HP shall...

Conventions used in this guide
TIP:Tips provide helpful hints or shortcuts.
NOTE: Notes provide important information to explain a concept or to complete a task.
CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging the
product.
WARNING! Warnings alert you to specific procedures that you should follow to avoid personal injury,
catastrophic loss of data, or extensive damage to the product.
ENWW iii 

iv   Conventions used in this guideENWW 

Table of contents
1  Theory of operation ........................................................................................................................................ 1
Basic operation ............................................................................................................... ...................... 2
Major product systems .........................................................................................................  2
Product block diagram...

Latent-image formation stage ...........................................................................  24Primary charging .............................................................................. 24
Laser beam exposure ....................................................................... 24
Developing stage .............................................................................................. 25 Print cartridge...

Remove the formatter PCA ............................................................................... 55
Wireless PCA .................................................................................................................. ... 57
Remove the wireless PCA ................................................................................ 57
Laser/scanner assembly .................................................................................................... 58 Remove the laser/scanner...

Print-quality troubleshooting tools .................................................................................... 103Repetitive defect ruler ..................................................................................... 103
Interpret control-panel light patterns ................................................................................ 103
Clear jams .......................................................................................................................