Oki B6500 Troubleshooting Manual page 110

Step
Checking HVPS/MCU for continuity
6 Disconnect P/J11 and P/J20 from HVPS/MCU.
Is there continuity between P11-16 and P20-5?
Checking after replacing SENSOR NO PAPER (3)
7 Replace SENSOR NO PAPER. (RRP20.16)
Does the problem still occur, after replacement?
Check
1 – 106
Chapter 1 Troubleshooting
Yes
Replace HVPS/
Go to step 7.
MCU. (RRP12.10)
Replace HVPS/
MCU. End of work
(RRP12.10)
No