Oki B6500 Service Manual page 148

Step
Checking Heat Roll and Pressure Roll
Remove FUSER ASSY. (RRP8.8)
Warning; Start the operation after the FUSER ASSY
have cooled down.
6
Turn the Gear HR with a finger, and check the Heat Roll
and Pressure Roll.
Are the Heat Roll and Pressure Roll damaged or
stained?
Checking ground of Heat Roll, Pressure Roll and Inlet
Chute Check visually, if there are any stains or transfor-
mation on the two plates on the left side of FUSER
ASSY.
Check the continuity between the plate on the left side
of FUSER ASSY and the following points:
7
- Back plate and Both ends of Heat Roll, without coating
(5-10 k-ohm)
- Front plate and The plate on Inlet Chute left end (1-2
k-ohm)
Are the grounding plates of Heat Roll, Pressure Roll
and Inlet Chute sound and continuous?
Checking ground of FUSER ASSY
Remove EP CARTRIDGE.
Check if there are any stains or deformation on GEAR
ASSY HOUSING.
8
Check the continuity between the printer frame and
screw on the back of FUSER ASSY.
Are there any deformation or stains on GEAR ASSY
HOUSING? Is FUSER ASSY grounded?
Check
1 – 128
Chapter 1 Troubleshooting
Yes
Replace FUSER
Go to step 7.
ASSY. (RRP8.8)
Replace FUSER
Go to step 8.
ASSY. (RRP8.8)
Go to step [ESS Replace GEAR
and possible ASSY HOUSING.
causes]. (RRP11.3)
No