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TROUBLESHOOTING
2-5. Control Panel Displays the Error Message "CALL SERVICE 01"
Step
1
Check parts with different specifications for problems with
usage, defective installation, breakage, and deformation.
• Main parts to be checked:
(1) Fuser assy, (2) Temp. sensor assy, (3) Heater rod
(4) MCU PCB, (5) LVPS assy
2
(Check temp. sensor assy)
Does the problem occur when the power is turned on?
3
(Check power supply to heater rod)
With the fuser assy cold, see if the heater rod lights up when the
power is turned on.
4
Does the problem occur while the fuser is warming up? *1
5
(Check power supply of heater rod) *1 *2
100-115V models: Is the voltage range between P/J101-2PIN
220-240V models: Is the voltage range between P/J101-3PIN
• Measure the voltage while the fuser is still warming up,
before an error message is displayed.
6
Does the heater rod go on and off (light up and go out) after the
fuser has finished warming up? *1
7
(Check LVPS assy)
Is 4.2 VDC being supplied between J11-1PIN
• Check before the output is stopped by the no-load status of the
LVPS assy (within 30 seconds of the power being turned on).
8
(Check heater rod ON signal) *1 *2
Is the voltage between P/J11-1PIN
while the fuser is warming up, and 4.2 VDC after the fuser has
finished warming up?
*1: The warming-up status of the fuser is checked by checking the ON/OFF status of the heater rod and the operation of
the main motor.
*2: Check with the connector (P/J111) on the HVPS disconnected.
Check
↔
P/J101-6PIN 90-132 VAC?
↔
P/J101-6PIN 198-264 VAC?
↔
P/J11-2PIN 0 VDC
– 86 –
YES
To step 2
To section 3-6
To step 4
To step 5
To section 3-6
To section 3-6
To step 8
↔
J11-2PIN?
Replace LVPS
assy.
Measure
NO
Replace or
reinstall.
To step 3
To section 3-5
To step 6
Replace LVPS
assy.
To step 7
Replace LVPS
assy.
Replace MCU
PCB.
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