Fip- 1.P9 Spots - Oki B6500 Service Manual

FIP- 1.P9 Spots

Before commencing troubleshooting, check the paper transfer course. Make sure there is no foreign
articles on the transfer course, such as staples, paper clips, scraps of paper and so on.
Step
Checking EP CARTRIDGE
Install a new EP CARTRIDGE.
1
Carry out a test printing.
Have the spots gone?
Checking BTR ASSY
Remove BTR ASSY. (RRP8.10)
2
Check if any stains and/or wear on BTR ASSY.
Are there any stains and/or wear on BTR?
Checking ROS ASSY
3
Are the connectors on ROS ASSY surely connected?
Checking the image development process
Operate Test Print, and turn off the power of the printer
while printing.
Remove the EP CARTRIDGE with care, and check the
4
toner image formed on the drum, right before the tran-
scribe part (BTR).
Is the image on the drum completely formed?
Is the area clear and black, and easily read?
Checking Heat Roll and Pressure Roll
Remove FUSER ASSY. (RRP8.8)
Warning; Start the operation after the FUSER ASSY
have cooled down.
5
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?
Print defect
There are toner spots all over the paper disorderedly.
ESS and possible causes
- EP CARTRIDGE
- HVPS/MCU (PL12.1.19)
- BTR ASSY (PL8.1.21)
- 150 FEEDER ASSY (PL5.1.1)
- ROS ASSY (PL8.1.1)
- GUIDE ASSY CRU R (PL8.1.25)
- PWBA ESS (PL12.1.13)
- 550 FEEDER ASSY (PL7.1.10)
Check
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Chapter 1 Troubleshooting
Yes
End of work Go to step 2.
Replace BTR
Go to step 3.
ASSY. (RRP8.10)
Reconnect the con-
Go to step 4.
Go to FIP1.41
Go to step 5.
HVPS/MCU.
Go to step [ESS
Replace FUSER
and possible
ASSY. (RRP8.8)
causes].
No
nectors.