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HP LaserJet Quick Reference Service Manual Page 219

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


To improve fusing ability on all supported paper sizes, the
fusing temperature has been increased from 180 degrees Celsius to
190 degrees Celsius for trays 2 and 3. The solution is provided through
updated firmware on the DC Controller PCB.
Confirm the printer is within the serial number range listed,
and then replace the DC controller PCB. It is also important to be
cautious of the media being used. If you need to verify the firmware
revision, refer to IC201 on the DC controller board. The first revision
1.11 is identified by a "02." The current 2.22 revision is identified by a
"05" on IC201. The 2.6 revision is identified with a "060"on IC201.
New Firmware Revision Fixes MIO and NVRAM Reset
Service Note Number:
Serial Number Range:
• 110V
XXYC00000 - XXYC99999
XXYF00000 - XXYF99999
• 220V
XXYC00000 - XXYC99999
XXYF00000 - XXYF99999
Where XX = US, NL, or SG
Y=B,C,D for 110V, or Q,R, or S for 220V
Affected Part Numbers:
Part Required:
C3166A-07 & C3167A-07
Formatter PCB
Technical Tips – 217


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