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15 July 1996
1.2 EXPOSURE
SC101 - Exposure lamp malfunction - abnormal On/Off
Definition: [level: A]
During the lamp off condition, the optics control board detects a lamp
voltage.
Possible causes
•
Exposure lamp open
•
Triac shorted
•
Exposure lamp thermoswitch open
•
Optics control board defective
SC103 - Power source frequency detection error
Definition: [level: D]
Detects frequencies out of the 45Hz to 65Hz range.
Possible causes:
•
Abnormal power source
•
Electrical noise
•
AC drive board defective
•
Optics control board defective
SC104 - Exposure lamp malfunction - abnormal off
Definition: [level: D]
The scanner start signal is received even if the main relay off condition is
detected.
Possible causes:
•
Main relay defective
•
Communication error between the main control board and the optics
control board because of a poor harness connection.
•
Optics control board defective
SERVICE CALL CONDITIONS
6-3
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