After Replacing Parts - Canon imageFORMULA DR-G2140 Service Manual

VI. AFTER REPLACING PARTS
Some of the parts used in this machine
require adjustments and settings after being
replaced or disassembled/reassembled. The
related parts are shown below.
Check document feed and images after
the replacement or disassembly/reassembly
of the parts.
1) Control PCB
Perform adjustment "All" and "Density" in
the service mode. Change the value for
"Counter" and enter"serial number" in the
Information tub.
2) Reading unit
Perform adjustment "All" and "Density" in
the service mode.
3) Registration-related parts
When replacing or reassembling the ultra-
sonic sensor PCB and ultrasonic drive
PCB on which a registration sensor is built,
perform adjustment "All" in the service
mode.
4) Periodically replaced parts (servicing)
When the periodically replaced parts,
such as registration rollers and platen roll-
ers, which are replaced by the service
technician, are replaced, set the number
of sheets fed at replacement by the
"Counter" in the service mode.
5) Power PCB
When the power PCB replaced, set the
number of hours at replacement by the
"Counter" in the service mode.
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COPYRIGHT © CANON ELECTRONICS INC. 2018
CHAPTER 5 TROUBLESHOOTING
6) Pickup sensor
When the pickup sensor is not properly in-
stalled, the pickup motion and feeding are
not performed correctly.
Therefore, the adjustment of the pickup
sensor position is required not only after
replacing parts, but also when a malfunc-
tion occurs after changing the position of
the pickup sensor.
For details, refer to following items.
 Operation check
Select "Motor / Sensor" in the service
mode and keep the operating condition of
the pickup sensor visible. If the pickup
sensor lights when the pickup tray is not
lifted or if the sensor does not light when
the pickup tray is at the top position, posi-
tion adjustment is necessary.
 Assembly verification
Verify that the pickup sensor and sensor
mounting plate have been assembled cor-
rectly before position adjustment. Verify
that the sensor cable is connected and
that a positioning boss is inserted in the
hole in the mounting plate.
CANON DR-G2140/G2110/G2090 FIRST EDITION