Canon QY8-1360-000 8 CLEANING CONDITIONS AND INK CONSUMPTION AVERAGE, Structure of purge unit

Part 4: Technical Reference BJC-7100

TABLE 4-8 CLEANING CONDITIONS AND INK CONSUMPTION (AVERAGE)

		Purged ink amount (for reference)
Conditions for cleaning	Print Head	BC-60	BC-61	BC-62e Photo
		Black	Three	Three normal colors *1
		Ink optimizer	colors *1	Three photo colors *1
• RESET button pressed *2	All heads	0.23g approx.	0.23g approx.	0.23g approx.
• Printer controlled online	Can be	↓	↓	↓
using printer driver *2	specified
• After BJ cartridge	Applicable	↓	↓	↓
replaced	heads
• After ink tank replaced	Applicable	↓	↓	↓
	heads
• After ink-out detection	Applicable	↓	↓	↓
	heads
• RESET button pressed *3	All heads	0.46g approx.	0.46g approx.	0.46g approx.
• Printer controlled online	All heads	↓	↓	↓
using printer driver *2
• First time printer turned	All heads	0.15g approx.	0.31g approx.	0.31g approx.
on after connecting AC
power *4
• When printer turned on	All heads	↓	↓	↓
after 72 hours or more
elapsed from last
cleaning (3-day timer)		↓	↓	↓
• At prescribed printed dot	Applicable
count	heads
• When printer turned off	All heads	(Not purged)	0.23g approx.	0.23g approx.
after printing *5

*1: Total amount for yellow, magenta, and cyan color and photo inks.

*2: Standard manual cleaning.

*3: Deep cleaning.

*4: Excluding when BJ cartridge installed and capped in the printer.

*5: Executed only when printing is performed after turning on the printer.

3.3.2 Structure of purge unit

1) Purge drive gear

The purge drive gear is driven via the transmission arm gear by the feed roller, which is, in turn, driven by the paper feed motor. The purge drive gear operates the cam that controls the pump operation and wiping. The cam position is sensed by the purge sensor.

The purge drive gear switches between purging and wiping depending on its direction of rotation.

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