2-24 Service Manual
5025-2xx, 4xx
Service checks
122.xx—Fuser temperature incorrect
This service check covers fuser temperature errors, including 122.xx.
90x.xx error
Step Questions / actions Yes No
1 Check the clearance around the printer. See
“Clearances” on page 1-5 or check the chart
below:
Does the error clear?
Problem resolved. Make sure the proper
clearance is maintained.
2
Check the fuser connections on the fuser, at
JFUSES1 on the controller board, and the AC
connection at the LVPS.
Are the connections correct?
Replace the fuser. See
“Fuser assembly
removal” on page 4-26.
Problem resolved.
3
Turn the printer on, and then check the
following values at JFUSES1.
Are these values approximately correct?
Replace the fuser assembly.
See “Fuser assembly
removal” on page 4-26.
Replace the controller
board. See “Controller
board removal” on
page 4-19.
Step Questions / actions Yes No
1 Turn the printer off, and remove the rear
shield. See “Rear shield removal” on
page 4-11. Check the cable connections.
Are all the cable connections secure?
Replace the controller
board. See “Controller
board removal” on
page 4-19.
Securely make all the
connections. POR the
printer.
Description Dimensions
Rear 102 mm (4 in.)
Front 508 mm (20 in.)
Right side 152 mm (6 in.)
Left side 76 mm (3 in.)
Above 254 mm (10 in.)
JFUSES1
Pin Value
5 Between +0.6 V dc and +3.28 V dc
6 Ground
8 Ground
9 +3.3 V dc
10 Between +0.6 V dc and +3.15 V dc
11 Ground
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