
Chapter 14
14-41
5) Turn off the power switch, and detach the door switch actuator.
6) Detach the jumper wire from the DC controller PCB.
7) Connect the connector to J3 of the potential control PCB.
8) Turn on the power switch.
2. Method 2
1) Turn off the power switch.
2) Remove the developing assembly, and slide out the process unit.
3) Disconnect the connector [1] of the potential sensor.
F-14-96
4) Remove the 2 screws [1], and detach the potential sensor support
plate [2].
F-14-97
5) Put back the developing assembly and the process unit.
6) Connect the connector [1] of the potential sensor.
F-14-98
7) Fit the potential sensor checker electrode (FY9-3041) [2] to the
potential sensor [1].
When fitting the checker electrode to the potential sensor, be sure that
the magnet of the checker electrode will not come into contact with the
potential sensor cover.
F-14-99
8) Connect the cable [1] of the potential sensor checker electrode to the
frame (GND) [2] of the machine.
Never bring the clip into contact with the sensor cover. Be sure to keep
it fully away from the sensor window.
F-14-100
9) Fit the door switch actuator into the door switch assembly.
10) Turn on the power switch.
Once you have turned on the power switch, do not touch the potential
sensor assembly.
11) Make the following selections in service mode, and check to make
sure that the reading is between 0 and 30 during initial rotation:
COPIER> DISPLAY> DPOT> DPOT-K.
MEMO:
1. If the reading is as indicated in Method 1 but is not in Method 2,
suspect dirt on the sensor or a fault in the potential measurement unit.
2. If the reading is as indicated in both Method 1 and Method 2, assume
that the signal path and the operation from the potential sensor unit
to the microprocessor on the DC controller PCB are normal.
12) Turn off the power switch.
13) Remove the potential sensor checker electrode.
14) Mount the potential sensor support plate.
15) Turn on the power switch.
[1]
[2]
[1]
[1]
[1]
[2]
[1]
[2]
Summary of Contents for ImageRunner iR8500 Series
Page 1: ...Apr 5 2005 Service Manual iR8500 Series ...
Page 2: ......
Page 6: ......
Page 32: ...Contents ...
Page 33: ...Chapter 1 Introduction ...
Page 34: ......
Page 98: ......
Page 99: ...Chapter 2 Installation ...
Page 100: ......
Page 180: ...Chapter 2 2 78 F 2 272 2 1 1 3 ...
Page 181: ...Chapter 3 Basic Operation ...
Page 182: ......
Page 184: ......
Page 207: ...Chapter 4 Main Controller ...
Page 208: ......
Page 245: ...Chapter 4 4 35 F 4 72 1 2 ...
Page 246: ......
Page 247: ...Chapter 5 Original Exposure System ...
Page 248: ......
Page 252: ......
Page 306: ......
Page 307: ...Chapter 6 Image Processing System ...
Page 308: ......
Page 310: ......
Page 319: ...Chapter 7 Laser Exposure ...
Page 320: ......
Page 322: ......
Page 335: ...Chapter 8 Image Formation ...
Page 336: ......
Page 340: ......
Page 399: ...Chapter 9 Pickup Feeding System ...
Page 400: ......
Page 404: ......
Page 482: ......
Page 483: ...Chapter 10 Fixing System ...
Page 484: ......
Page 524: ......
Page 525: ...Chapter 11 External and Controls ...
Page 526: ......
Page 530: ......
Page 583: ...Chapter 12 MEAP ...
Page 584: ......
Page 586: ......
Page 589: ...Chapter 13 Maintenance and Inspection ...
Page 590: ......
Page 592: ......
Page 610: ...Chapter 13 13 18 F 13 17 1 2 3 ...
Page 648: ......
Page 649: ...Chapter 14 Standards and Adjustments ...
Page 650: ......
Page 654: ......
Page 723: ...Chapter 15 Correcting Faulty Images ...
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Page 792: ......
Page 793: ...Chapter 16 Self Diagnosis ...
Page 794: ......
Page 796: ......
Page 841: ...Chapter 17 Service Mode ...
Page 842: ......
Page 1076: ......
Page 1077: ...Chapter 18 Upgrading ...
Page 1078: ......
Page 1080: ......
Page 1108: ...Chapter 18 18 28 F 18 45 3 Click Start F 18 46 4 Click Save F 18 47 5 Click OK ...
Page 1111: ...Chapter 19 Service Tools ...
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Page 1121: ...Apr 5 2005 ...
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