Canon PC300 Service Manual page 76

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SS OPERATIONS AND TIMING S35
Vil. SELF DIAGNOSIS
The copier's microprocessor on the DC controller/DC power supply PCB is equipped with a
self diagnostic mechanism that checks the condition of the machine; when the mechanism
detects an error, it indicates an error code on the copy count display.
(The PC300/FC210 does not have a copy count display; it indicates an error condition by
flashing the Jam indicator.)
'E@' is represented by alternating
E> 6
* The temperature of the fixing heater is
215°C or more.
+ The temperature of the fixing heater
does not reach 80°C within 2.5 sec after
copying operation has started.
* The temperature of the fixing heater
lowers below 135°C after is has reached
150°C.
* The temperature of the fixing heater
does not reach 150°C within 7.5 sec
after copying operation has started.
* The maximum supply power is detected
for about 5 sec after the temperature of
the fixing heater has reached 150°C.
¢ Thermistor (TH1; faulty)
» Fixing heater (H1; faulty)
«DC controller/DC power supply (faulty)
Note: :
if. an error associated with "E0! is detected, 'E' is displayed (PC320/325/FC230) or the Jam
indicator (PC300/FC210) remains ON for about 0.5 sec; thereafter, the power goes out.
COPYRIGHT © 1994 CANON INC, CANON PC300320/325, FC210/290 REV.0 JULY 1994 PRINTED IN JAPAN {IMPRIME AU JAPON) 3-49