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2-3. Control Panel Displays the Error Message "CALL SERVICE 08"
Step
1
Check parts with different specifications for problems with
usage, defective installation, breakage, and deformation.
• Main parts to be checked:
(1) Optional RAM board
2
Does problem recur if power is turned on again?
3
Does problem recur if power is turned off and on several times?
*1: The problem is thought to be caused by external noise, but just to be sure, go to Section 3-21, "Noise", and check
as described in this section.
Note: If the problem recurs even after the optional RAM board is replaced with a normal one, check as described in
Section 3-21, "Noise".
2-4. Control Panel Displays the Error Message "CALL SERVICE 03"
Step
1
Check parts with different specifications for problems with
usage, defective installation, breakage, and deformation.
• Main parts to be checked:
(1) ROS assy, (2) MCU PCB, (3) CRU sensor PCB
(4) EPX toner cartridge, (5) Harness assy HVPS
(6) Harness assy ROS, (7) Harness assy SOS
(8) LVPS assy
2
(Check scanner assy of ROS assy) *1
Check to see if the scanner motor of the ROS assy is rotating
when the Test Print mode is accessed, and if the rotation sound
can be heard.
3
(Check LD power supply for LD assy of ROS assy) *2
Is 5 VDC being supplied between P12 - 7PIN
4
(Check LD power supply for LD assy of ROS assy) *2
Is 5 VDC being supplied between P15 - 8PIN
*1: If it is hard to hear the sound of the scanner motor rotating, disconnect the drive assy connector (P/J14) and stop the
main motor in order to hear the sound better.
*2: Disconnect the connector (P/J111) from the HVPS and check.
Check
Check
↔
P12 - 6PIN?
↔
P/J11-2 PIN?
– 85 –
TROUBLESHOOTING
Measure
YES
To step 2
Replace or
reinstall.
Replace optional
To step 3
RAM board.
Replace optional
Processing
RAM board.
completed *1.
Measure
YES
To step 2
Replace or
reinstall.
To step 3
To section 3-4
To section 3-4
To step 4
Replace MCU
To section 3-1
PCB.
NO
NO
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