Canon iR5000 Service Manual page 802

E110
Main Cause The laser scanner motor (M15) is faulty. The wiring is faulty (short circuit,
open circuit). The DC controller PCB is faulty.
Mode of
Detection
0001 • After the laser scanner motor drive signal has been generated,
E121
Main Cause The controller cooling fan (FM4) is faulty. The wiring is faulty (short cir-
cuit, open circuit). The DC controller PCB is faulty.
Mode of
Detection
0001 Although the controller cooling fan (FM4) is being driven, the
E196
Main Cause The EEPROM on the DC controller PCB is faulty. The location of the
EEPROM is wrong. The DC controller PCB is faulty.
Mode of
Detection
1abb When data is written to the EEPROM, the data written and the data
2abb When the ID read into the EEPROM and the ID into the ROM are
3abb When ID in the EEPROM and the ID in the ROM are compared
a:
bb:
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the motor ready signal (LMRDY*) does not arrive for 15 secs or
more. (stop → full speed, half-speed → full speed)
• During the period of 'full speed → half speed', the motor ready
signal does not arrive for 60 secs or more after the speed change
signal has been generated.
• During the period of 'full speed rotation', the motor ready signal
is not detected 50 times or more (t intervals of 100 msec).
clock signal (FM4LCK) does not arrive for 5 secs or more.
read do not match.
compared, a mismatch is found.
after the main power switch is turned on, a mismatch is found.
chip Nos. 0 through 5 (0: IC104, 1: IC105, 2: IC109, 3: IC110, 4:
IC127, 5: IC130)
chip faulty address (bit)
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 6 SELF DIAGNOSIS
6-5 T