Canon QY8-1360-000 BJ cartridge detection, 6 INDEX CONNECTIONS, 4-28, Part 4 Technical Reference

Part 4: Technical Reference BJC-7100

3.2.6 BJ cartridge detection

The sensor signal from the index on the drive circuit is used to detect whether a BJ cartridge is installed and, if so, what type it is.

The index is either open or pulled down via the resistor on the heater board.

TABLE 4-6 INDEX CONNECTIONS

	BC-60		BC-61/BC-62e Photo
	Ink optimizer head	Black head	Photo head*	Color head*
ID1	Open	Pulled down	Open	Open
(signal name)	(ID1OM)	(ID1BK)	(ID1PH/ELMPH)	(ID1CL/ELMCL)
ID2	Pulled down	Pulled down	Pulled down	Pulled down
(signal name)	(ID2OM)	(ID2BK)	(ID2PH/ELYPH)	(ID2CL/ELCCL)

*: Pins shared with electrodes.

The detection signals are pulled up to VCC on the logic board and are read by the IO board of the MPU as Low when pulled down and High when open to detect the BJ cartridge.

With combinations of index sensor signals other than above, all print operations are disabled. When print operations are disabled, a BJ cartridge error is displayed.

TABLE 4-7 INDEX SENSOR SIGNALS AND BJ CARTRIDGE DETECTION

		1	2	3	4	5	6
Index sensor	ID1OM*1	N.C.	N.C.	N.C.	N.C.	N.C.	N.C.
signals	ID2OM	Low	Low	Low	High	High	High
	ID1BK	Low	Low	Low	High	High	High
	ID2BK	Low	Low	Low	High	High	High
	ID1PH	High	High	High	High	High	High
	ID2PH	High	Low	High	High	Low	High
	ID1CL	High	High	High	High	High	High
	ID2CL	Low	Low	High	Low	Low	High
BJ cartridge	BC-60	Yes	Yes	Yes	Yes	Yes	Yes
detection	BC-61	Yes	None	None	Yes	Yes	Yes
	BC-62 Photo	None	Yes	None	None	None	None
Print	Monochrome	Enabled	Enabled	Disabled	Disabled	Disabled	Disabled
operation	printing
	Color printing	Enabled	Enabled*2	Disabled	Disabled	Disabled	Disabled
	Photo printing	Disabled	Enabled	Disabled	Disabled	Disabled	Disabled

*1: ID1 of the ink optimizer head is not detected by the printer.

*2: The operator uses the printer driver to select whether printing is continued using only the color ink system, or whether printing is interrupted.

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