1 - 56
Chapter 1 Troubleshooting
Step
Check Yes No
9
Checking /ROSMOT ON signal of Scanner Motor
Install EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
Is P/J13-3 <=> P/J13-2 on HVPS/MCU, 0 V just after when
the power is turned ON, and 5VDC 10 seconds after
stopping MAIN MOTOR?
Go to step 11. Go to step 10.
10
Checking HARNESS ASSY ROS for continuity
Disconnect P/J13 from HVPS/MCU.
Is each cable of P/J13 <=> P/J130 continuous?
Replace
HVPS/MCU.
(RRP12.10)
Replace
HARNESS ASSY
ROS.
11
Checking HARNESS ASSY ROS for continuity
Disconnect P/J17 and P/J16 from HVPS/MCU.
Disconnect P/J170 and P/J160 from ROS ASSY.
Are the following continuous normally?
P/J17 <=> P/J170
P/J16 <=> P/J160
Go to step 12.
Replace
HARNESS ASSY
ROS.
12
Checking SOS power circuit of ROS ASSY
Disconnect P/J140 from ROS ASSY.
Are the following continuous normally?
P/J140-8 <=> P/J201-1
P/J140-6 <=> P/J201-2
P/J140-7 <=> P/J201-3
Go to step 13.
Replace ROS
ASSY. (RRP8.1)
13
Checking after replacing HVPS/MCU
Replace HVPS/MCU. (RRP12.10)
Does the problem still occur, after replacement?
Go to step 14. End of work
14
Checking after replacing ROS ASSY
Replace ROS ASSY. (RRP8.1)
Does the problem still occur, after replacement?
Go to FIP2.19
Electrical Noise.
End of work
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