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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Image 108
Canon QY8-1360-000 BJ cartridge detection, Index Connections, Index Sensor Signals and BJ Cartridge Detection, Signal name

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