Canon GP160DF, Service Manual

Page: 364 / 797

COPYRIGHT © 1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
13-130
Printer status is displayed as a hexadecimal number.
This is converted to a binary number and then the area which is out of order is
detected.
Below is an explanation of how to read the screen.
Figure 13-525
How to read the printer status screen
0:01 2:01 3:01 5:01
8:02 10:07 11:0B
Status Number
Status information (upper 4 bits)
Upper 4 bits display 0000.
Status information (lower 4 bits)
Lower four bits display 0010.
When status 8’s status information (upper four bits) displays 0 and (lower 4 bits) 2,
as shown above, if the bit pattern is fixed according to the conversion chart below,
at 0000 0010, bit 1 becomes 1.
Status 8’s bit 1 is a status which indicates a fixing assembly problem, and indicates
the cause of the printer’s poor condition is the fixing assembly.
(Upper 4 bits) (Lower 4 bits)
0 0 0 0 = 0
0 0 0 1 = 1
0 0 1 0 = 2
0 0 1 1 = 3
0 1 0 0 = 4
0 1 0 1 = 5
0 1 1 0 = 6
0 1 1 1 = 7
1 0 0 0 = 8
1 0 0 1 = 9
1 0 1 0 = A
1 0 1 1 = B
1 1 0 0 = C
1 1 0 1 = D
1 1 1 0 = E
1 1 1 1 = F
0 = 0 0 0 0
1 = 0 0 0 1
2 = 0 0 1 0
3 = 0 0 1 1
4 = 0 1 0 0
5 = 0 1 0 1
6 = 0 1 1 0
7 = 0 1 1 1
Display
indicator Display
indicator
3: Misprint status in detail
8: Call service man status
35: Feeder assembly trouble status in detail
39: Fixing assembly trouble status in detail
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0