Canon imageRUNNER ADVANCE 8105 Series Service Manual page 11

Removing the Main Drive Unit ----------------------------------------------- 4-225
External Auxiliary System ----------------------------------------------- 4-230
Removing the Filter (for primary charging) ------------------------------- 4-230
Removing the Ozone Filter --------------------------------------------------- 4-230
Removing the DC Controller PCB ------------------------------------------ 4-231
Removing the Power Supply Assembly ----------------------------------- 4-234
Removing the Fixing Power Unit -------------------------------------------- 4-235
Removing the Feed Driver PCB --------------------------------------------- 4-236
Removing the Upper High Voltage Unit ----------------------------------- 4-237
Removing the Upright Control Panel --------------------------------------- 4-238
5
Adjustment
Overview ------------------------------------------------------------------------5-2
When replacing parts --------------------------------------------------------5-2
Controller System ------------------------------------------------------------------ 5-2
HDD -------------------------------------------------------------------------------------------- 5-2
Main Controller PCB 1--------------------------------------------------------------------- 5-4
Main Controller PCB 2--------------------------------------------------------------------- 5-4
TPM PCB ------------------------------------------------------------------------------------- 5-6
Flash PCB ------------------------------------------------------------------------------------ 5-6
Image Formation System -------------------------------------------------------- 5-7
Primary Charging Wire -------------------------------------------------------------------- 5-7
Primary Charging Assembly ------------------------------------------------------------- 5-7
Pre-transfer Charging Assembly -------------------------------------------------------- 5-9
Pre-transfer Charging Wire--------------------------------------------------------------- 5-9
Photosensitive Drum ----------------------------------------------------------------------- 5-9
Drum Side Seals (Front and Rear) ----------------------------------------------------5-10
Developing Assembly ---------------------------------------------------------------------5-10
Potential Sensor / Potential Control PCB --------------------------------------------5-10
ETB Unit / ETB ----------------------------------------------------------------------------- 5-11
Patch Sensor ------------------------------------------------------------------------------- 5-11
Waste Toner Container ------------------------------------------------------------------- 5-11
Fixing System ---------------------------------------------------------------------- 5-11
Fixing Roller --------------------------------------------------------------------------------- 5-11
External Auxiliary System -------------------------------------------------------5-12
DC Controller PCB ------------------------------------------------------------------------5-12
6
Troubleshooting
Test Print ------------------------------------------------------------------------6-2
Overview ----------------------------------------------------------------------------- 6-2
How to View the Test Print ------------------------------------------------------- 6-3
Grid (TYPE=1) ------------------------------------------------------------------------------- 6-3
17 gradations (TYPE=2/3) ---------------------------------------------------------------- 6-3
Solid white (TYPE=4) ---------------------------------------------------------------------- 6-4
Halftone (TYPE=5/6/11/12/13/14) ------------------------------------------------------ 6-4
Solid black (TYPE=7) ---------------------------------------------------------------------- 6-5
Horizontal line (TYPE=8/9/10) ----------------------------------------------------------- 6-5
Image Faults -------------------------------------------------------------------6-6
Trailing Edge Shock Imaget ----------------------------------------------------- 6-6
Uneven density correction by 2D shading ----------------------------------- 6-7
ADF black line --------------------------------------------------------------------- 6-11
Bleed-thru/Soil appeared on the back of the paper
(Staple Finisher D1/Booklet Finisher D1) -----------------------------------6-12
White line (foreign matter between Developing Sleeves)---------------6-13
Separation Failure Jam due to Deformation of Separation Claw -----6-15
Image error due to soil attached to the Cleaning Brushes for
the Duplex Right Roller and the Duplex Outlet Roller -------------------6-16
Uneven density --------------------------------------------------------------------6-22
Smeared image -------------------------------------------------------------------6-23
Image failure due to the temperature rising at the edge of
the Fixing Roller (crepe mark) -------------------------------------------------6-25
MTF Adjustment -------------------------------------------------------------------6-26
Adjustment Procedure --------------------------------------------------------------------6-26
When Making Fine Adjustment After Sampling the MTF Value ----------------6-27
When Disabling the MTF Adjustment -------------------------------------------------6-27
Feed Faults ------------------------------------------------------------------- 6-28
Paper wrinkle ----------------------------------------------------------------------6-28
Other --------------------------------------------------------------------------- 6-28
Adjusting rotation of the Upright Control Panel Arm ---------------------6-28
Remedy to be implemented when the ETB Disengage Member
(Transfer Frame Stopper) is left unremoved -------------------------------6-30
Checking nip width ---------------------------------------------------------------6-32