Gestetner A294 Service Manual page 469

Rev.9/2001
SC350: ID Sensor Error 1
Definition [D]
One of the following ID sensor output voltages was detected when checking
the ID sensor pattern.
≥ 2.5 V
1) V
SP
2) V = 0 V
SP
Possible Causes
• ID sensor defective
• ID sensor connector defective
• Poor ID sensor connector connection
• BCU defective
• Charge/bias/grid power pack defective
• Dirty ID sensor
• Defect on the drum at the ID sensor pattern writing area
SC351: ID Sensor Error 2
Definition [D]
The following two conditions were detected at the same time when checking
the ID sensor pattern.
≤ 2.5 V or V
1) V
SG
2) The ID sensor output voltage is 5.0 V and the PWM signal input to the ID
sensor is 0
Possible Causes
• ID sensor defective
• ID sensor connector defective
• Poor ID sensor connector connection
• BCU defective
• Charge/bias/grid pack defective
• Dirty ID sensor
• Defect on the drum at the ID sensor pattern writing area
SC352: ID Sensor Error 3
Definition [D]
The ID sensor pattern edge voltage is not at 2.5 V for 1.5 seconds during the
ID sensor pattern check.
Possible Causes
• ID sensor defective
• ID sensor connector defective
• Poor ID sensor connector connection
• BCU defective
• Charge/bias/grid pack defective
• Dirty ID sensor
• Defect on the drum at the ID sensor pattern writing area
SM
CÓPIA NÃO CONTROLADA
= 0 V
SG
7-11
CÓPIA NÃO CONTROLADA
SERVICE CALL CONDITIONS
A294/A295