Mita PointSource Ai 3010, Service Manual

Page: 358 / 478

Code Contents
Remarks
Causes
Check procedures/
corrective measures
2AR
3-5-12
C332 Scanner watchdog
problem
The main routine does not
run within 8.192 ms of the
main switch being turned
on.
C340 Original detection
position problem
The CPU IC5 in the scanner
control PCB cannot store
initial data from the origi-
nal size sensor correctly.
C400 Polygon motor
synchronization problem
The polygon motor does
not reach the stable speed
within 20 s of the polygon
motor remote signal turning
on.
C401 Polygon motor
steady-state problem
The polygon motor rotation
is not stable for 600 ms
after the polygon motor
rotation has been stabi-
lized.
Defective
scanner
control PCB.
Poor contact
of the connec-
tor terminals.
Defective
original size
sensor.
Defective main
PCB or scan-
ner control
PCB.
Poor contact
of the polygon
motor connec-
tor terminals.
Defective
polygon motor.
Defective
power source
PCB.
Poor contact
of the polygon
motor connec-
tor terminals.
Defective
polygon motor.
Defective
power source
PCB.
Replace the scanner control
PCB and check for correct
operation.
Check the connection of con-
nector CN8 on the scanner
control PCB and the continuity
across the connector terminals.
Remedy or replace if neces-
sary.
Replace the original size
sensor.
Replace the main PCB or
scanner control PCB and
check for correct operation.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the LSU.
Check if 24 V DC is present
at CN6-1 on the power
source PCB. If not, replace
the power source PCB.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the LSU.
Check if 24 V DC is present
at CN6-1 on the power source
PCB. If not, replace the power
source PCB.
3-5-11