Canon GP405 Service Handbook page 98

CHAPTER 4 SERVICE MODE
2. IP
P001
P002
P003
P004 to P007
P008
P009 to P011
Indicates the hardware version of the image processor PCB in respect of combinations of the
states of bits 1, 3, and 4 (P001):
<bit1, bit3, bit4>=<0, 0, 1> System supported
4-30
bit 0 not used
bit 1 hardware version
bit 2 not used
bit 3 hardware version
bit 4 hardware version
bits 5 to 7 not used
not used
bit 0, bit 1 not used
bit 2 Indicates the connection
of the SCSI board to the
fax motherboard.
bit 3 Indicates the connection
of the AX board to the
fax motherboard.
bit 4 Indicates the connection
of the PDL I/F board to
the FAX motherboard.
bits 5 to 7 not used
not used
bit0 not used
bit1 control panel reset
bit2 control panel back light
bit3 not used
bit4 DC controller PCB LED201 0: OFF 1: ON
bit5 laser bias output
bit6 control card count
bit7 not used
not used
0: SCSI board not connected
1: SCSI boar connected
0: FAX board not connected
1: FAX board connected
0: PDL I/F not connected
1: PDL I/F board connected
0: reset disabled
1: reset enabled
0: OFF 1: ON
0: ON 1: OFF
0: OFF 1: ON