Canon WS8400 Service Manual page 65

Cleaning Mode
Cleaning 1
Cleaning 2
Cleaning 3
Cleaning 4
Cleaning 5
Cleaning 6
Cleaning 7
Cleaning 8
Cleaning 9
Cleaning 10
Cleaning 11
Cleaning 12
Cleaning 13
Cleaning 14
Cleaning 15
Details of the cleaning function are shown in the table below.
*1: Ink consumption amount for each nozzle array.
*2: If the power is not turned on within 360 hours, perform cleaning 2 because the unattended timer stops.
*3: When the power button was not pressed and capping could not be performed, such as during a power outage or when the power cable is unplugged.
Printer Status
At power on
Before printing
Name Cleaning Description
Normal cleaning (Head Removes ink adhered due to nozzle drying, ink accumulated
Cleaning A) on the face, and paper particles.
Ink level adjustment cleaning Adjusts the ink level in the head by suction and then performs
normal cleaning.
Initial filling cleaning Fills the ink when there is no ink in the tube (during initial
installation) and then performs normal cleaning.
Ink extraction during head Extracts the ink to replace the head. (Extracts only ink in the
replacement head.)
Ink extraction during Extract the ink in the head and tube for secondary transport.
secondary transport
Normal (strong) cleaning Performs suction stronger than when adjusting the ink filling
(Head Cleaning B) amount in the head or normal cleaning in order to clear
clogged nozzles.
Bk aging Performs Bk aging when ink is changed after head
replacement and then performs normal cleaning. (Bk only)
- -
- -
Ink filling during secondary Fills the ink when there is no ink in the tube (during
transport installation after secondary transport) and then performs
normal cleaning.
Sub-buffer ink extraction Extracts the ink in sub-buffer in order to change ink from Bk
to MBk or MBk to Bk.
Ink change (ink replacement) Replaces the ink from Bk to MBk or from MBk to Bk.
- -
- -
Y dot count suction Performs suction to remove Y ink adhered due to nozzle
drying/Y ink accumulated on face when the Y dot count
reaches a prescribed value or every 20 sheets.
Initial installation
When the power is turned ON at least 1440
hours but less than 2160 hours have elapsed
since the previous ink level adjustment
suction or initial filling suction. *2
When the power is turned ON at least 2160
hours have elapsed since the previous ink
level adjustment suction or initial filling
suction. *2
Power ON within 72 hours after printing ends
abnormally *3
Power ON when 72 hours have elapsed since
printing ends abnormally *3
Before printing within 48 hours since
previous print end
Before printing after at least 48 hours but less
than 96 hours since the previous end of
printing
Before printing after at least 96 hours since
the previous end of printing
When prescribed amount of ink is discharged
after previous ink level adjustment suction.
When at least 1440 hours but less than 2160
hours have elapsed since the previous ink
level adjustment suction.
At least 2160 hours have elapsed since the
previous ink level adjustment suction
When an error occurs before printing
T-2-2
T-2-3
Cleaning Description
Cleaning 3 (initial filling
cleaning)
Cleaning 2 (ink level
adjustment cleaning)
Cleaning 3 (initial filling
cleaning)
Cleaning 1 (normal
cleaning)
Cleaning 6 (normal
(strong) cleaning)
Wiping and maintenance jet
(Y/M/PM: 2000 shots C/
PC: 1400 shots Bk: 700
shots)
Cleaning 15 (Y dot count
suction)
Cleaning 1 (normal
cleaning)
Cleaning 6 (normal
(strong) cleaning)
Cleaning 2 (ink level
adjustment cleaning)
Cleaning 3 (initial filling
cleaning)
Cleaning 1 (normal
cleaning)
Chapter 2
Consumption
(reference)*1
Approx. 35g
Approx. 11g
Approx. 35g
Approx. 1g
Approx. 6g
Approx. 0.06g
Approx. 0.3g
Approx. 1g
Approx. 6g
Approx. 11g
Approx. 35g
Approx. 1g
2-15