Konica Minolta magicolor 1600W, Service Manual

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17. Malfunction code Field Service V er. 1.0 Nov. 200 8
108
magicolor 1600W magicolor 1650EN
T
roubleshooting
17.2.9 0500: Fuser warm-up failure
0503: Thermistor resistance failure
17.2.10 0502: Thermistor open-circuit failure
0510: Abnormally low fuser temperature
0520: Abnormally high fuser temperature
Relevant electrical parts
Fuser unit Printer control board (PRCB)
DC power supply (DCPU)
Step Action
WIRING DIAGRAM
Control signal
Location (Electrical
component)
1 Change fuser unit.
⎯ ⎯
2
For magicolor 1600W:
1. Main switch is turned ON.
2. Open the top cover.
3. Press the following keys in this order.
Rotate Toner key
→
Clear key
→
Clear
key
→
Rotate Toner key.
4. Main switch is turned OFF/ON.
For magicolor 1650EN:
1. Main switch is turned ON.
2. Execute [SER V ICE MENU] - [
FUSER
UNLOCK
].
See P.92
⎯ ⎯
3 Change PRCB.
⎯ ⎯
4 Change DCPU.
⎯ ⎯
Relevant electrical parts
Fuser unit Printer control board (PRCB)
DC power supply (DCPU)
Step Action
WIRING DIAGRAM
Control signal
Location (Electrical
component)
1
Check the fuser unit for correct installation
(whether it is secured in position).
⎯ ⎯
2
Check the fuser unit, DCPU, and PRCB for
proper connection and correct as neces-
sary.
⎯ ⎯
3 Change fuser unit.
⎯ ⎯
4 Change PRCB.
⎯ ⎯
5 Change DCPU.
⎯ ⎯