5-53
Troubleshooting
E3-50: Transfer cleaner operation
When the transfer cleaner motor drives, the transfer cleaner home position sensor
is not ON/OFF within a predetermined time.
Is the wire cleaner felt
NO
Does the wire cleaner felt connect to
at the home position sensor?
the corona rail slider?
NO
YES
a) Turn the transport lever and lower the
transport unit
b) Press down the transfer charger and draw it
toward you.
c) Slide the wire cleaner felt to rear side until it
stops.
d) Re-install the transfer charger.
e) Turn the transport lever and raise the
transport unit.
f) Check the wire cleaner felt is connected to
the corona rail slider.
YES
Check operation
Is DC5V detected on sensor CN-1?
NO
Sensor connector is shorted or broken.
YES
Does CN4-5 (output signal of control
NO
Sensor is defective
panel CPU PCB) change when the
sensor is turned ON/OFF?
E4-01: Fuser warm-up
When the fuser temperature does not reach the predetermined level
within a predetermined time.
Does fuser lamp turned ON after
YES
Fuser thermistor is dirty.
the power switch is turned on?
Sensor position is incorrect.
NO
Fuser temperature is low (re-adjust F6-31)
Fuser thermistor is defective.
Is these continuity between
NO
Fuser lamp connector is shorted or broken.
CN-1 and 2 when the
Fuser thermostat is defective.
AC driver PCB CN203 is removed.
Fuser lamp is defective.
YES
Is there some registrance between
NO
CNTH connector is shorted or broken.
CNTH-1 and 2 approximately few M ,
Fuser thermistor is defective.
whenCPU PCB CN7 is removed.
(approx. 1.4M /77F, 25°C)
Summary of Contents for FA-DS72
Page 8: ......
Page 236: ...27 Sheet Bypass Tray PM102 8 1 7 5 3 4 6 10 11 4 12 13 9 16 15 18 14 4 17 2 ...
Page 238: ...28 ADU PM801 16 8 1 4 14 12 10 11 11 13 13 6 7 8 16 9 5 3 2 15 ...
Page 360: ...1 4 7 10 8 9 5 6 2 3 1 Sorter Mounting Assembly ...
Page 362: ...1 2 5 J41 3 6 7 8 4A 4 2 Covers ...
Page 370: ...A 4 5 2 6 3 4 7 1 9 9 12 10 13 14 15 16 17 18 19 20 21 22 8 J22 M4 M2 J35 A 6 Drive Block ...
Page 379: ...1 2 3 4 5 6 7 10 8 9 1 Sorter ...
Page 381: ...1 A 3 4 5 12 13 15 9 10 11 6 7 8 16 2 14 13A J202 J202 J104 2 Covers ...