C0650: Scanner Home Sensor Malfunction; C0660: Scanner Overrun Failure - Minolta CF2002 Service Manual

(37) C0650: Scanner Home Sensor malfunction

(38) C0660: Scanner overrun failure

<Detection Timing>
Malfunction Code
C0650
C0660
<Action>
Scanner Home Sensor (PC201)
Scanner Motor (M201)
Step Action
Correct or change the Scanner
1 drive (cable, pulley, gear, belt)
if it is faulty.
Correct the Scanner Motor set
2
screw if loose.
Adjust "Top Image" and "FD-
3
Mag."
4 PC201 I/O check
5 Change M201.
6 Change PWB-IC.
7 Change PWB-C.
• The Scanner Home Sensor is unable to detect a Scanner when
the Scanner is at a position to block the sensor.
• The Scanner Home Sensor is unable to detect a Scanner
despite the fact that the Scanner Motor has been energized to
move the Scanner over the maximum traveling distance.
• The Scanner Home Sensor detects a Scanner when the Scan-
ner has moved a distance of 5 mm away from the position, at
which it blocks the sensor.
The Scanner Home Sensor detects the Scanner at its home posi-
tion during a period of time that begins with the time when a pres-
can command and a scan preparation command are executed and
ends when a home return command is executed.
Relevant Electrical Parts
Ref.
Page
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D-68
T-4 to
T-10
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T-50
Description
Scanner Motor Drive Board (PWB-IC)
Image Processing Board (PWB-C)
WIRING DIAGRAM
Control Signal
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Location
(Electrical
Component)
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26-G
22-G
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