315
C
Potential sensor calibration error 5
During drum potential sensor calibration,
when –100V is applied to the drum, the
output value is out of the prescribed range.
• Potential sensor defective
• Potential sensor harness disconnected
• Potential sensor connector defective or
disconnected
• IOB defective
• OPC connector defective
• Development power pack defective
316
C
Potential sensor calibration error 6
During drum potential sensor calibration,
when –800V is applied to the drum, the
output value is out of the prescribed range.
• Potential sensor defective
• Potential sensor harness disconnected
• Potential sensor connector defective or
disconnected
• IOB defective
• OPC connector defective
• Development power pack defective
317
C
Potential sensor calibration error 7
During drum potential sensor calibration,
when VL is adjusted, the pattern surface
potential VL pattern is not within range 0V
~ –400V. (VL is the potential after expos-
ing a white pattern.)
• Potential sensor defective
• Potential sensor harness disconnected
• Potential sensor connector defective or
disconnected
• IOB defective
• OPC connector defective
• Charge corona power pack defective
• Development power pack defective
340
C
TD sensor output error
TD sensor output voltage (Vt), measured
during each copy cycle, is detected 10
times at one of the following levels:
Vt = 0.5 volts or lower
• TD sensor defective
• TD sensor harness disconnected
• TD sensor connector disconnected or
defective
Service Mode
251
4
Summary of Contents for G148
Page 1: ...Model MT P2 Machine Code G148 SERVICE MANUAL 23 June 2006 Subject to change...
Page 52: ...10 Clamp 1 LCT B473 51 1...
Page 94: ...16 Set the hopper 13 in its holder Punch Unit B702 93 1...
Page 129: ...2 Preventive Maintenance 128 2...
Page 163: ...1 Open the front door 2 Pull out the internal dust filter A 3 Replacement and Adjustment 162 3...
Page 172: ...4 Development motor bracket D x 3 x 1 5 Development motor E x 4 Development Unit 171 3...
Page 237: ...3 Replacement and Adjustment 236 3...
Page 295: ...Install the paper feed unit 4 Troubleshooting 294 4...
Page 435: ...5 Service Tables 434 5...
Page 521: ...6 Details 520 6...