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HP LaserJet Quick Reference Service Manual Page 215

Volume i.
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Also See for LaserJet
User manual - 449 pages
Manual - 432 pages
Software manual - 418 pages


HP has worked with the engine vendor to quickly sort out
suspect clutches and ensure that only good parts are available as
replacements. However, some printers in the serial number ranges
listed earlier may have clutches that fail. Identify the jam condition as it
relates to one of the assemblies above, and then replace the
appropriate clutch or assembly.
New Firmware Revision Corrects 79 Error
Service Note Number:
Serial Number Range:
• 110V
XXYC0000 - XXYC9999
XXYD0000 - XXYD9999
• 220V
XXYC00000 - XXYC99999
XXYD00000 - XXYD99999
Where XX = US, NL, or SG
Y=B,C,D for 110V, or Q,R, or S for 220V
Affected Part Numbers:
Part Required:
The LaserJet 5Si/5Si MX was introduced with firmware
revision 7.9. To verify a firmware revision, review the configuration page
in the TEST MENU. The most common error seen with this version
firmware is a 79 Service Error with an associated sub-code. The sub-
codes for which this service note is associated are 81ee, 8101, 0101,
0142, and 8108.
C3166A-05 & C3167A-05
Formatter PCB
Technical Tips – 213


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