Canon iR8500 Service Manual page 676

<R-CON (3/3)>
Address bit
P008 0 not used
1 not used
2 not used
3 not used
4 not used
5 not used
6 not used
7 not used
<R-CON> (iR7200)
Indicates the input/output ports of the reader controller PCB.
<R-CON (1/3)>
Address bit
IO-P01 0 scanner motor clock signal
1 scanner motor CCW/CW switch signal
2 scanner motor HOLD/OFF switch signal
3 scanner motor driver reset signal
4 scanner motor stream reading current
switch signal
5 original sensor ON switch signal
6 fan error signal
7 scanning lamp ON switch signal
IO-P02 0 SK signal to EEPROM
1 DDI-SPI (1)
2 DDI-SPI (2)
3 DI signal to EEPROM
4 DDI-SCTS
5 DDI-SPRDY
6 DDI-SCPRDY
7 scanning lamp inverter error signal
IO-P03 0 DDI-S transmission
1 RS232C transmission (factory terminal
transmission)
2 DDI-S reception
3 RS232C reception (factory terminal reception)
4 ITOP transmission (image leading edge signal)
5 DDI-SRTS
6 not used
7 not used
COPYRIGHT© 2001 CANON INC.
Description
Description
2000 2000 2000 2000 CANON iR8500/7200 REV.1 AUG. 2001
SERVICE MODE
Notation Remarks
Notation Remarks
→
M3 when 1 0, ON
0: CCW, 1: CW
M3 0: current hold,
1: current OFF
M3 1: reset
M3 0: stream reading current
PS43 0: sensor ON
not used
LA2 0: lamp ON
normal clock
not used
not used
DATA area
0: DDI reception ready
0: DDI power ready
0: DDI power ready
1: error
DATA area
DATA area
DATA area
DATA area
not used
0: DDI transmission ready
COPIER>I/O
S-33