3–122
OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Possible cause
• Composite power supply (faulty)
• DC controller (faulty)
• Scanner cable (displacement,
tear)
• Scanner home position sensor
(PS1; faulty)
• Scanner motor (M2; faulty)
• DC controller (faulty)
• Lens cable (displacement, tear)
• Lens home position sensor (PS2;
faulty)
• Slide shutter (faulty movement)
• Blanking shutter home position
sensor (PS3; faulty)
• Change solenoid (SL1; faulty)
• Lens motor (M3; faulty)
• DC controller (faulty)
• Scanning lamp (faulty)
• Composite power supply (faulty)
• DC controller (faulty)
• DC controller (faulty)
• Composite power supply (faulty)
• Power supply cooling fan (faulty)
• DC controller (faulty)
• Power supply frequency (fluctua-
tion)
• Composite power supply (faulty)
• DC controller (faulty)
• DC controller (faulty)
• DF controller(faulty)
• Connector (poor contact)
• DC controller (faulty)
• ASSIST controller (faulty)
• Communication with ASSIST
(faulty)
• Composite power supply (faulty)
• DC controller (faulty)
Code
Description
The output value is different from the setting for
the high-voltage output of the composite power
supply.
The scanner does not return to home position
within 5 sec when scanning operation is
started.
‘E002’ may be checked in service mode No.
108.
• The lens home position signal (LHP) is not
generated within a specific period of time
after the power switch has been turned ON.
• The lens home position signal (LHP) is being
generated for more than a specific period of
time.
• The blank shutter home position signal
(BSHP) is not generated when the slide
shutter is moved.
• Activation of the lamp is detected during
standby more than 22 sec.
An error is detected in the communication
between the CPU (Q301) on the DC controller
and the CPU (U402) on the composite power
supply.
The power supply cooling fan (FM3) remains
stationary for 10 sec or more because of an
error.
The intervals of the zero-cross signal deviates
from the tolerance.
Initialization of the IPC (Q311) fails at power-
on.
An error in the communication with the DF
cannot be removed.
• Communication with ASSIST after connec-
tion fails.
• A break is detected with ASSIST.
The relay (KI) does not turn off when the power
switch is turned off (ACOFF=0).
E064
E202
(control panel
keys locked)
E210
E220
E240
E260
E712
E717
E710
E261
E802