Mita PointSource Ai 3010, Service Manual

Page: 354 / 478

Code Contents
Remarks
Causes
Check procedures/
corrective measures
2AR-1
3-5-8
Poor contact of
the desk drive
motor connec-
tor terminals.
Defective desk
drive motor
rotation control
circuit.
Defective drive
transmission
system.
Broken gears
or couplings of
the upper lift
motor.
Defective
upper lift
motor.
Poor contact
of the upper
lift motor con-
nector termi-
nals.
Defective
upper lift limit
switch.
Poor contact
of the upper
lift limit switch
connector
terminals.
C231* Desk drive motor
problem
DDM LOCK signal remains
high for 2 s or longer, 1 s
after the desk drive motor
has turned on.
C241 Upper lift motor problem
When the drawer is in-
serted, the upper lift limit
switch does not turn on
within 4.6 s of the upper
lift motor turning on.
During copying, the upper
lift limit switch does not
turn on within 200 ms of the
upper lift motor turning on.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the desk drive motor.
Check if the rollers and gears
rotate smoothly. If not, grease
the bushings and gears.
Check for broken gears and
replace if any.
Replace the upper lift motor.
Check for continuity across
the coil. If none, replace the
upper lift motor.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Check if CN12-8 on the engine
PCB goes low when the upper
lift limit switch is turned off. If
not, replace the upper lift limit
switch.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
* If the optional device is attached.
3-5-7