Canon 2163B002 service manual Ink supply function, Caps

Chapter 2

		T-2-7
Cleaning mode	Name	Cleaning operation
Cleaning 1	Normal cleaning	Removes fixed inks caused by dried nozzles and viscous
		ink matters adhering to their faces, paperdust and so on.
Cleaning 2	Cleaning on ink level adjustment	Performs normal cleaning after suction for ink level adjustment in the head.
Cleaning 3	Cleaning on initial filling	Performs normal cleaning after filling empty tubes with inks (at initial installation).
Cleaning 4	Ink drainage on head	Drains the head of head replacement (inks left in the head only).
	replacement
Cleaning 5	Ink drainage on secondary	Drains the head and tubes of inks to prepare for secondary shipping.
	shipping
Cleaning 6	Normal (high) cleaning	Adjusts the rate of ink filling in the head and performs higher suction to clear clogged nozzles than does
		normal cleaning.
Cleaning 7	Aging	Performs maintenance jet following head replacement.
Cleaning 10	Ink filling on secondary shipping	Perform normal cleaning after filling empty tubes with inks (at installation after secondary shipping).
Cleaning 15	Dot count suction	Performs a suction operation to remove fixed inks caused by dried nozzles and viscous ink matters
		adhering to their faces when a predetermined dot count is reached.
Cleaning 16	A gitation on settling	Agitates the ink in an tank to keep it from settling (by opening and closing the ink supply valve),
Cleaning 17	Cleaning, low	Performs lower suction to clear clogged nozzles than does normal cleaning.

The cleaning operation is executed at the following timing.

	T-2-8
Printer status		Cleaning operation
Standby	On each lapse of 168 minutes in a capped state	Maintenance jet
	168 hours or more elapsed, capped	Cleaning 1
		(Normal cleaning)
	720 hours or more elapsed, capped	Cleaning 6
		(Normal (high) cleaning)
	960 hours or more elapsed, capped	Cleaning 2
		(Ink level adjusting and cleaning)
	Initial installation and 168 hours elapsed, capped, since the last session of	Cleaning 16
	agitation on settling	(Agitation on settling)
	(Cleaning 16)
Power on	Initial installation	Cleaning 3
		(Cleaning on initial filling)
	Powered on less than 72 hours after the abnormal termination of a print	Cleaning 1
	operation (uncapped)	(Normal cleaning)
	Powered on 72 or more hours after the abnormal termination of aprint	Cleaning 6
	operation (uncapped)	(Normal (high) cleaning)
	Powered on at initial installation and 168 hours elapsed, capped, since the	Cleaning 16
	last session of agitation and settlement	(Agitation on sattling)
	(Cleaning 16)
	Powered on 720 hours or more after the successful completion of a print	Cleaning 6
	operation (capped)	(Cleaning on ink level adjustment)
	Powered off less than 960 hours after the successful completion of a print	Cleaning 2
	operation (capped)	(Cleaning on ink level adjustment)
Powered off	Powered off, uncapped	Wiping + Maintenance jet + Idle suction + Capping
Before the start	Before the start of a print operation less than 168 hours elapsed, capped	Maintenance jet
of a print operation
	Before the start of a print operation 168 hours or more elapsed, capped	Cleaning 1
		(Normal cleaning)
	Before the start of a print operation in the wake of an error occurrence	Cleaning 1
		(Normal cleaning)
	Before the start of a remaining roll media volume pattern	Temperature regulator on > Uncap > Stop and maintenance jet
		> Temperature regulator off > Cap
Printing	Between scans while printing	Maintenance jet + Wiping
At the end of a print	After the end of a print operation past a predetermined dot count	Cleaning 15 (dot count suction) or Cleaning 6 (normal (high)
operation		cleaning), depending on the count
On execution of the	Manual cleaning	Cleaning 1
menu action [Head	(Head cleaning A)	(Normal cleaning)
Cleaning]
	Manual cleaning	Cleaning 6
	(Head cleaning B)	(Normal (high) cleaning)
On execution of the	On execution of Replace P.head from the menu	Cleaning 4 (Ink drainage on head replacement)
menu action [Replace
	After head replacement	Cleaning 2 (Cleaning on ink level adjustment)
P.head]
On execution of Move	After execution of Move Printer from the menu	Cleaning 5 (Ink drainage on secondary Moving)
Printer from the menu
	After Power-on at secondary installation	Cleaning 10 (Ink filling after secondary shipment)

c) Ink supply function

The suction pumps in the purge unit are activated, together with ink supply valves, during initial filling and ink level adjustment to supply inks from the ink tanks to the printhead.

2.3.2.5.2 Structure of Purge Unit

0012-6341

a) Caps

The caps cap the nozzle assembly in the left printhead during capping and cleaning. The part of the caps that comes into contact with the face plate of the nozzle assembly is made of rubber. Two caps are in position to meet each of the printheads mounted on the carriage (six trains of nozzles).

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