Canon iR2200 Service Handbook page 238

CHAPTER 6 SELF DIAGNOSIS
E007
0000 An error in the rotation of the fixing film is detected.
The reading of the main thermistor is 100°C or higher and, in addition, the
fixing film sensor does not detect the rotation of the film for 6 sec or more
while the fixing motor is driven.
Main cause The fixing film sensor (PS45) is faulty. The DC controller PCB is faulty.
Caution To clear the error, execute the following in service mode:
COPIER>FUNCTION>CLEAR>ERR.
Action
1. Wiring
Are the wring and the connectors connected securely?
DC controller PCB (J311) <-> relay connector <-> fixing film sensor
NO:
2. Fixing film sensor
Check the fixing film rotation signal.When the fixing motor is rotating, is
the film rotation detection signal sent by the fixing film sensor to the
concoctor J311 of the DC controller PCB?
Film rotation detection signal: 5V pulse signal between J311-A9
(FILM_ROT_D) and J311-A8 (GND); at intervals of 100 msec ON and 440
msec OFF
NO:
3. Fixing film unit, DC controller PCB
Is there a fault in the fixing film edge rotation detection mechanism?
YES: Replace the fixing film unit.
NO:
6-6
Connect the wiring and the connectors.
If the fixing film is normal, replace the sensor.
Replace the DC controller PCB.