Mita PointSource Ai 3010, Service Manual

Page: 361 / 478

Code Contents
Remarks
Causes
Check procedures/
corrective measures
2AR
3-5-15
Poor contact
of the humidity
sensor PCB
connector
terminals.
Defective
external
temperature
thermistor.
Poor contact
of the humidity
sensor PCB
connector
terminals.
Defective
external
temperature
thermistor.
Image forma-
tion unit
connector
installed
incorrectly.
Defective
image forma-
tion unit.
The paper
conveying
motor connec-
tor makes
poor contact.
The paper
conveying
motor mal-
functions.
Defective
finisher main
PCB.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the humidity sensor
PCB.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the humidity sensor
PCB.
Reinstall the image formation
unit connector if necessary.
Replace the image formation
unit.
Reinsert the connector. Also
check for continuity within the
connector cable. If none, repair
or replace the cable.
Replace the paper conveying
motor and check for correct
operation.
Replace the finisher main
PCB and check for correct
operation.
C730 Broken external tempera-
ture thermistor wire
The input voltage is above
4.5 V (230 bits).
C731 Short-circuited external
temperature thermistor
The input voltage is below
0.5 V (25 bits).
C740 Image formation unit
connector insertion
problem
Absence of the image for-
mation unit is detected
continuously for 1500 ms
while there is no error on
the copier.
C801* Finisher paper convey-
ing motor problem
PCM LOCK signal is de-
tected for 0.5 s or longer.
* If the optional device is attached.
3-5-14