Canon iR1200 Series Service Manual page 344

Chapter 13
6) Move the flag of the sensor to see that the indication alternates between 'of' and 'on'to indicate that the sensor is
going OFF and ON.
On the next page, the screens that appear when '1' through '4' are pressed are shown together with the sensor names
and the sensor states when the machine is in standby state.
6-3:SENOR
[1] - - - [4]
Press '1' on the keypad.
Press '2' on the keypad.
Press '3' on the keypad.
Press '4' on the keypad.
13-4
DS of DES of DDS of
CRG on DCVS on
'DS of' indicates that the original sensor (DS) of the ADF is OFF.
DS of DES of DDS of
CRG on DCVS on
DS: original sensor*1 (PS6); 'on' if present, 'of' if absent.
DES: registration sensor*1 (PS7); 'on' if present, 'of' if absent.
DDS: original delivery sensor*1(PS8);'on' if present, 'of' if absent.
CRG: not used
DCVS: Reader unit slide detecting switch (SW1) and toner supply cover open/closed detecting switch (SW2):
'on' reader unit in position and toner supply cover closed
'of' reader unit not in position or toner supply cover open
*1: indicates the state of a specific sensor of the ADF.
HPS on BCVS of
TBS on WTS of
HPS: contact sensor home position sensor (PS1):
'on' contact sensor in home position,
'of' contact sensor not in home position.
BCVS: ADF (copyboard cover) open/close sensor (PS2); 'on' cover open, 'of' cover closed.
TBS: toner bottle sensor (PS11):
'on' toner bottle fitted,
'of' toner bottle not fitted (cartridge not fitted).
WTS: waste toner full sensor (PS12):
'on' if present, 'of' if absent.
CT1 on A4
CT1: cassette paper sensor (P103); 'on' paper present, 'of' paper absent.
MLT on A4 TN on
JAM of
MLT:manual feed tray paper sensor (PS4); 'on' paper present, 'of' paper absent.
TN: not used.
JAM: not used.
Sensor name
Sensor name
F-13-3
F-13-4
Present state
of the sensor
Present state
of the sensor