Canon GP160DF Service Manual page 580

CHAPTER 4 SERVICE MODE
Status 8 (call service man status)
Bit Meaning
0 Parity bit (odd size)
1 Fixing assembly trouble
2 Scanner unit trouble
3 Fan motor trouble
4 Reserved
5 Feeder assembly trouble
6 Reserved
7 Reserved
[Bit 1]
When trouble is detected in the fixing assembly's fixing heater and temperature control
thermistor, this becomes 1.
[Bit2]
When trouble is detected in the laser scanner motor, laser unit or BD, this becomes 1.
[Bit 3]
When a fan trouble signal is detected more than 60 times within 200ms, this becomes 1.
[Bit 5]
When the main motor is out of order, this becomes 1.
4-78
Out of order
Out of order
Out of order
Out of order
Table 4-29
1 0
Normal
Normal
Normal
Normal