Canon iR1600 Series Service Manual page 480

CHAPTER 13 TROUBLESHOOTING
#1 SSSW-SW15: dial-in fax/tel switch-over function
Bit
Function
0 Not used
1 timing for storing polarity in memory
2 Not used
3 Not used
4 Not used
5 Not used
6 Not used
7 Not used
[Bit 1]
When a dial-in fax/tel switch-cover takes place, the polarity of the telephone line is stored
in memory for detection of reversal of the polarity of the telephone line. The timing may
be set so that it is either after detection of CI or after release of the telephone line.
Some switchboards are known to wrongly store the polarity, which can further cause the
machine to enter standby state when the telephone line is released, thus disabling commu-
nication with the other party. If such is the case, be sure to select 'after release of tele-
phone line'.
If the switch is set to 'after release of telephone line', the reversal of the
polarity cannot be detected from when CI is detected to when the tele-
phone line is released.
13-102
COPYRIGHT© 2002 CANON INC.
1 0
- -
telephone after CI
line detection
- -
- -
- -
- -
- -
- -
2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
Factory setting
0