Lexmark OptraImage 443, Service Manual

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3-9
3.1.1.9 3.1.1.9 3.1.1.9 3.1.1.9 Scan module does not move to the home position Scan module does not move to the home position Scan module does not move to the home position Scan module does not move to the home position
Cause
Cause Cause
Cause Relevant Unit
Relevant Unit Relevant Unit
Relevant Unit Check Method
Check Method Check Method
Check Method Maintenance Method
Maintenance Method Maintenance Method
Maintenance Method Remark
Remark Remark
Remark
Home position sensor
board-main control
PCBA connection
failure None Visual check
★
Connect the
connector. None
Home position sensor
board-main control
PCBA cable failure Sensor board-main
control PCBA cable Tester or visual
check
★
Replace the home
position sensor cable.
◆
Home position sensor
board failure Sensor board Tester check
★
Replace the PCBA. None
Power supply-main
control board
connection failure None Visual check Connect the
connector. None
Power supply fails Power supply Tester check (+5V,
+24V, GND)
★
Replace the power
supply. None
Lamp failure Lamp Visual check Replace the lamp. None
Inverter failure Inverter Visual check Replace the inverter. None
CCD board-main
control board
connection failure None Visual check Connect the
connector None
CCD board fails CCD board Tester check Replace the optical
unit None
Table 3.5 Table 3.5 Table 3.5 Table 3.5
◆
= See section 1.4.3 Wiring configuration
★
= Refer to section 4.6