Malfunction Detection Timing And Troubleshooting Procedures; C0045: Fuser Fan Motor Error - NEC NEFAX 671 Service Manual

Malfunc-
Malfunction Name
tion Code
C13F0 Laser error
C1468 EEPROM error
CIS LED malfunc-
C14A3
tion
4-2. Malfunction Detection Timing and Troubleshooting Proce-
dures
(1)

C0045: Fuser fan motor error

<Detection Timing>
• The LOCK signal remains HIGH or LOW continuously for a predetermined period of
time while the Cooling Fan Motor remains energized.
<Troubleshooting Procedures>
Cooling Fan Motor (M2)
Step Action
1 Check the Motor connectors for
connection and correct as neces-
sary.
2 Check the fan for possible over-
load and correct as necessary.
3 M2 operation check
4 M3 operation check
5 Replace PWB-P.
Description
• The laser output exceeds the upper limit value.
• The laser output remains lower than the lower limit
value.
• An EEPROM not written with initial data was detected.
• The luminosity level of the CIS LED is not stabilized
within the predetermined period of time.
Description
Relevant Electric Parts
Controller/Mechanical Control Board (PWB-P)
Power Unit (PU1)
Ref. Page
Control Signal
☞ D-23
–
PWB-P MPJ13P-
☞ T-3
1 to 3 (pulse)
PWB-P MPJ6P-1
☞ T-4
to 3 (pulse)
☞ D-12
T-16
WIRING DIAGRAM
Location
(Electric Parts)
– –
– –
G to H-5 to 6
E-9 to 10
– –