Canon LBP-860 Service Manual page 151

which continues even when the
tester is disconnected.
This mode continues until the
printer is turned OFF.
Permits the laser diode to emit light.
Do not set the LASER POWEK
Note:
CHECK switch to ON while the
printer is operating. otherwise lhe
bark OF the print paper will become
dirty.
DENSITY SELECT
Adjusts the image density.
U-CASS. (LED)
Lights when there is paper in the upper
cassette.
MP TRAY (LED)
purpose tray.
Lights when there is paper in the lower
cassette.
ENVELOPE SENSOR (LED)
Lights when there is an envelope in the
envelope feeder.
REGIST SENSOR (LED]
Lights when paper is at the regist paper
sensor.
Lights when paper is at the MP tray paper
end sensor.
DELIVERY SENSOR [LED)
Lights when paper is at the paper delivery
sensor.
TONER SENSOR (LED)
Lights when there is toner in the cartridge
when the primary AC bias is being output.
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PAPER SIZE [LED)
Indicates the paper size of the cassette in
the paper pick-up unit specified by the
PAPER FEED METHOD SELECT switch.
Table 6-l
No paper
Executive
O N 1 OFFi O N
A4
Letter
LASER INTENSITY [LED)
Lights when the intensity of the laser beam
is insufficient.
CARTRIDGE SENSOR (LED)
Lights when there is a cartridge in the
printer when the primary AC bias is
output.
COMMUNICATION (LED)
Flashes twice a second when the tester
communicates with the printer.
Lights when +24 VA is supplied to the
tester.
CHAPTER 6
O N
OFF
ON 1 OFF OFI
OFF ON
1
ON