B140/B246 SERIES SERVICE MODE 15 February 2006
4-48
ID sensor error 2 351 C
The ID sensor output voltage is 5.0V
and the PWM signal input to the ID
sensor is 0 when checking the ID
sensor pattern.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
C ID sensor error 3 352
For 2 s during the ID sensor pattern
check, the ID sensor pattern edge
voltage is not 2.5V or the pattern edge
is not detected within 800 ms.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
ID sensor error 4 353 C
One of the following ID sensor output
voltages is detected at ID sensor
initialization.
• Vsg < 4.0V when the maximum
PWM input (255) is applied to the ID
sensor.
• Vsg ≥ 4.0V when the minimum
PWM input (0) is applied to the ID
sensor.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
ID sensor error 5 354 C
Vsg falls out of the adjustment target
(4.0 ± 0.2V) during Vsg checking.
• ID sensor defective
• ID sensor harness disconnected
• ID sensor connector defective
• IOB defective
• ID sensor pattern not written correctly
• Incorrect image density
• Charge power pack defective
• ID sensor dirty
ID sensor error 6 355 C
The Vp value, which measures the
reflectivity of the ID sensor pattern,
was not in the range of –70V to –400V.
• Potential sensor defective
• Potential sensor harness defective
• Potential sensor disconnected
• IOB defective
• OPC unit connector defective
• Charge corona power pack defective
• Charge corona wire dirty, broken
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