Canon NP6012 Service Manual page 146

rr L_____—__SSSSSS SSS SSOP CRATIONS AND TIMING
X. SELF DIAGNOSIS
The copier's DC controller PCB is equipped with a microprocessor that checks the state of
the machine (sensors in particular); when it identifies an error, it indicates it in the copy counter
on the control panel.
In the case of 'E001', 'EO' and '01' are flashed alternately.
Cause
Indicated when the fixing film is being * After E007
corrected for displacement. The temperature detected by the
thermistor (TH1) is 100°C or less at
power-on.
Indicated when the drum unit has reached | * The cummulative number of copies made
its life (replacement), by the drum unit has reached 30,000.
Fixing heater (overheating) ¢ The thermistor (TH2) temperature
exceeds 225°C during copying
operation.
* Thermistor (TH1, TH2; faulty) * The thermistor (TH1) temperature fails to
* Fixing heater (H1; faulty) reach 65°C 1.5 sec after a press on the
* Thermal fuse (FU1; melted) Copy Start key.
* Triac (faulty) * The thermistor (TH1) temperature fails to
* DC controller PCB (faulty) teach 150°C in 4 sec after a press on the
Copy Start key.
¢ The thermistor (TH2) temperature fails to
teach 65°C in 4 sec after a press on the
Copy Start key.
(Note 1)
COPYRIGHT © 1995 CANON INC. CANON NP6O12/NP6O12F /NP6212 REV. SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-101