Bj Cartridge Detection - Canon QY8-1360-000 Service Manual

Part 4: Technical Reference

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.
ID1
(signal name)
ID2
(signal name)
*: 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
Index sensor
signals
BJ cartridge
detection
Print
operation
*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.
TABLE 4-6 INDEX CONNECTIONS
BC-60
Ink optimizer head
Open Pulled down
(ID1OM) (ID1BK)
Pulled down Pulled down
(ID2OM) (ID2BK)
1
ID1OM* N.C.
1
ID2OM Low
ID1BK Low
ID2BK Low
ID1PH High
ID2PH High
ID1CL High
ID2CL Low
BC-60 Yes
BC-61 Yes
BC-62 Photo None
Monochrome Enabled
printing
Color printing Enabled
Photo printing Disabled
Black head Photo head*
Open
(ID1PH/ELMPH)
Pulled down
(ID2PH/ELYPH)
2 3
N.C. N.C. N.C.
Low Low High
Low Low High
Low Low High
High High High
Low High High
High High High
Low High Low
Yes Yes Yes
None None Yes
Yes None None
Enabled Disabled Disabled
Enabled* Disabled Disabled
2
Enabled Disabled Disabled
4-28
BC-61/BC-62e Photo
Color head*
Open
(ID1CL/ELMCL)
Pulled down
(ID2CL/ELCCL)
4 5 6
N.C. N.C.
High High
High High
High High
High High
Low High
High High
Low High
Yes
Yes
Yes Yes
None
None
Disabled Disabled
Disabled Disabled
Disabled Disabled
BJC-7100