Canon imageRUNNER ADVANCE 9070 PRO series Service Manual Digest page 519

■ CLEANING
COPIER> FUNCTION> CLEANING
TBLT-CLN ITB cleaning
Lv.1 Details To execute three idle rotations of the ITB and clean the ITB.
The Process Unit forms toner patch on the ITB with 100mm interval
(for 2 rotations) by doing the operation that is the same at image
formation.
The Primary Transfer Roller comes into contact with the ITB, but the
Secondary Transfer Outer Roller is disengaged.
This mode is stopped when the last toner patch passes through the
ITB Cleaning Unit.
Use case • When image failure occurs periodically due to the assumption of
soiled ITB
• When contacting with the ITB at the time of periodical replacement,
etc.
Adj/set/operate method Select the item, and then press OK key.
Display/adj/set range 0 to 1
0: Stop cleaning, 1: Execute cleaning
Default value 0
Required time Approx. 10 seconds
WIRE-CLN Cleaning of Charge Wire(1-reciprocation)
Lv.1 Details To clean the Charging Wire of the Primary Charging Wire/Pre-
transfer Charging Wire simultaneously (1 reciprocation).
Use case • When replacing the Primary Charging Assembly/Pre-transfer
charging assembly
• When replacing the Charging Wire
• When vertical lines occur on an image
Adj/set/operate method Select the item, and then press OK key.
Display/adj/set range During operation: ACTIVE, When operation finished normally: OK!
Required time Approx. 30 seconds
TB-INSD Cleaning inside ITB
Lv.1 Details To execute two idle rotations of the ITB and clean inside of the ITB
and Primary Transfer Roller.
Both the Primary Transfer Roller and the Secondary Transfer Outer
Roller are engaged with ITB.
Positive/reverse bias secondary transfer high voltage is alternately
applied to the Secondary Transfer Outer Roller.
After the two idle rotations of the ITB, operation stops.
Use case • When image failure occurs periodically due to the assumption of
inside ITB or Primary Transfer Roller soiling
• When contacting with the inside of ITB at the time of periodical
replacement
Adj/set/operate method Select the item, and then press OK key.
Display/adj/set range During operation: ACTIVE, When operation finished normally: OK!
Required time Approx. 10 seconds
BK-BNDEX Toner supply to Photosensitive Drum
Lv.1 Details To form the toner band on the Photosensitive Drum, and collect it
with the Drum Cleaning Blade to decrease friction between the two.
All Photosensitive Drums and the ITB perform idle rotation, and stop
after toner cleaning.
Use case When image smear occurs due to the Drum Cleaning Blade
Adj/set/operate method Select the item, and then press OK key.
Display/adj/set range During operation: ACTIVE, When operation finished normally: OK!
Required time 30 seconds
WIRE-EX Cleaning of Charge Wire(5-reciprocation)
Lv.1 Details To clean the Primary Charging Wire and the Pre-transfer Charging
Wire simultaneously (5 reciprocations).
Polish new Charging Wires to remove foreign matters or protrusions.
Use case • When replacing the Primary Charging Assembly/Pre-transfer
Charging Assembly
• When replacing the Charging Wire
• When vertical lines occur on an image
Adj/set/operate method Select the item, and then press OK key.
Display/adj/set range During operation: ACTIVE, When operation finished normally: OK!
Required time Approx. 50 seconds
2TR-CLN Clean of Secondary Transfer Outer Roller
Lv.1 Details To clean paper dust adhered on the Secondary Transfer Outer Roller.
Both the Primary Transfer Roller and the Secondary Transfer Outer
Roller are engaged to the ITB.
The Process Unit does operation that is the same at image
formation. It forms 4 toner bands which the 4 colors are laid on top of
another on the ITB.
The base voltage (Vb) calculated with the Secondary Transfer ATVC
control is applied to the Secondary Transfer Outer Roller until the
toner bands pass through, so that toner is adhered on the Secondary
Transfer Outer Roller.
After the toner bands passed, Secondary Transfer Outer Roller
cleaning control is executed (positive/reverse bias is applied every 2
rotations of the roller). Toner is adhered on the ITB.
When the toner adhered on the ITB passed through the ITB Cleaning
Unit, the operation is stopped.
Use case • When the back side of the sheet is soiled by the Secondary
Transfer Outer Roller
• When contacting with the Secondary Transfer Outer Roller at the
time of jam processing, etc.
Display/adj/set range 0 to 1
0: Stop cleaning, 1: Execute cleaning
Default value 0
Required time 8 seconds
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