Image Faults
Black Line appearing in sub scanning direction on image due to
fluff adhered to the leaser exposure path.
[Symptom]
Black line in sub scanning direction [a] may occur.
The arrow [b] indicates the direction of feeding.
[Cause]
If fluffy foreign matter is adhered to the leaser exposure path which is located between the Laser Scanner Unit and the Developing
Unit, the laser light is blocked and a latent image cannot be formed. As a result, the symptom occurs.
[Service work]
1) Remove the process unit by following the steps in Service Manual "Parts Replacement and Cleaning > Image Formation
System > Cleaning the Process Unit".
2) Remove the developing unit by following the steps in Service Manual "Parts Replacement and Cleaning > Image Formation
System > Removing the Developing Assembly".
3) Check to see if any fluffy foreign matter is attached to the developing sleeve [a] in the developing assembly and remove if
found.
If no fluffy foreign matter is attached, proceed to Step 4).
4) Remove the laser scanner unit by following the steps in Service Manual "Parts Replacement and Cleaning > Laser Exposure
System > Removing the Laser Scanner Unit".
5) Check to see if any fluffy foreign matter is attached to the area near [a] the laser scanner unit and remove if found.
1
Summary of Contents for imageRUNNER ADVANCE 8500 series
Page 37: ...iR ADV 8585i 120V USA G SWP00501 iR ADV 8505 220V CN SWE00105 33 ...
Page 53: ...4 5 Make some prints and check that the above issue does not occur 49 ...
Page 66: ...2 Remove the grate shaped lower guide 2 screws 2 62 ...
Page 70: ...7 Reattach the metal plate 1 Screw 2 x1 8 Loosen the 2 screws 1 66 ...
Page 74: ...iR ADV 8505 220V CN To be informed as soon as identified 70 ...
Page 90: ... Service parts FM4 0889 010 solenoid assembly 86 ...