Mita PointSource Ai 3010, Service Manual

Page: 357 / 478

Code Contents
Remarks
Causes
Check procedures/
corrective measures
2AR
3-5-11
C244* Desk lower lift motor
problem
When the drawer is in-
serted, the desk lower lift
limit switch does not turn
on within 4.6 s of the desk
lower lift motor turning on.
During copying, the desk
lower lift limit switch does
not turn on within 200 ms
of the desk lower lift motor
turning on.
C310 Scanner carriage
problem
The home position is not
correct when the power is
turned on or at the start of
copying using the bypass
table.
Broken gears
of couplings of
the desk lower
lift motor.
Defective desk
lower lift
motor.
Poor contact
of the desk
lower lift motor
connector
terminals.
Defective desk
lower lift limit
switch.
Poor contact
of the desk
lower lift limit
switch con-
nector termi-
nals.
Poor contact
of the connec-
tor terminals.
Defective
scanner home
position switch.
Defective main
PCB, scanner
control PCB or
scanner motor
PCB.
Defective
scanner motor.
Replace the desk lower lift
motor.
Check for continuity across
the coil. If none, replace the
desk lower lift motor.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Check if CN1-7 on the desk
main PCB goes low when the
desk lower lift limit switch is
turned off. If not, replace the
desk lower lift limit switch.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Check the connection of con-
nector CN4 on the scanner
motor PCB and the continuity
across the connector terminals.
Remedy or replace if neces-
sary.
Replace the scanner home
position switch.
Replace the main PCB, scan-
ner control PCB or scanner
motor PCB and check for
correct operation.
Replace the scanner motor.
* If the optional device is attached.
3-5-10