
Chapter 14
14-28
14.4 Laser Exposure System
14.4.1 Points to Note When Replacing the Laser
Unit
0008-4300
iR105i/iR105+ / iR9070
1) Check to make sure that the Execute/Memory lamp in the control
panel is OFF; then, turn off the main power switch.
2) Disconnect the power plug from the power outlet.
The machine remains powered as long as the power plug is connected to
the power outlet. Be sure to disconnect it.
3) Replace the laser unit.
4) Record the values (LA-DELAY) indicated on the label attached to the
new laser unit.
5) Assemble the machine, and connect the power plug to the power
outlet; then, turn on the main power switch.
6) Enter the values recorded in step 4) using service mode: COPIER>
ADJUST> LASER> LA-DELAY.
14.4.2 When Replacing the Laser Unit
0008-8468
/ iR85+ / iR8070
1) Check to make sure that the Execute/Memory indicator in the control
panel is OFF, and turn off the main power switch.
2) Disconnect the power plug from the power outlet.
The machine remains supplied with power as long as the power plug
remains connected to the power outlet. Be sure to disconnect the power
plug.
3) Replace the laser unit.
4) Take notes of the settings (LA-DELAY) on the label attached to the
new laser unit.
5) After assembling the machine, connect the power plug to the power
outlet, and turn on the main power switch and the control panel
power switch.
6) Enter the settings recorded in step 4) in service mode:
COPIER>ADJUST>LASER>LA-DELAY.
14.4.3 Checking the Laser Power
0007-0662
iR105i/iR105+ / iR9070
1) Check to make sure that the Data lamp in the control panel is OFF,
and turn off the main power switch.
2) Disconnect the power plug from the power outlet.
3) Remove the copyboard glass.
4) Open the laser power checker slot cover [1].
F-14-56
5) Shift the switch of the laser power checker (FY9-4008) to '2'.
6) White orienting the laser power checker so that its light-receiving
face [1] is as shown, fit it in.
F-14-57
7) Connect the probe lines of the laser power checker to a digital
multimeter.
F-14-58
[1]
[1]
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 ...
Page 724: ......
Page 728: ......
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 ...
Page 1112: ......
Page 1114: ......
Page 1120: ......
Page 1121: ...Apr 5 2005 ...
Page 1122: ......