Canon GP160DF Service Manual page 574

CHAPTER 4 SERVICE MODE
c) Sensor test <6-3: SENSOR>
c-1) Sensor test
This is a mode which uses the display to check the condition of this machine's sen-
sors.
When 3 on the numeric key pad is pressed in the FACULTY TEST menu, the sensor
test is selected.
The display indicator indicates when the sensor being tested is turned on and off.
Also, the LBP status is shown on the display to check printer error information.
Refer to page 2-11 for details concerning the sensor test.
6-3:SENOR
[1] - - - [7]
Press 1 on the numeric key pad.
DS of DES of DOC A4
CRG on DCVS on
DS: document sensor (PS801): on/document, of/no document
DES: document leading edge sensor (PS805): on/document, of/no document
DOC: document width sensor (PS851, PS852): displays the width of the
CRG: toner cartridge message: on/toner cartridge, of/no toner cartridge
DCVS: pick-up sensor: on/no paper detected (at stand-by means the lower right
Press 2 on the numeric key pad
HPS on RES on BCVS of
NDFS of DLS0 of DLS1 of
HPS: scanner home position sensor: on/scanner is in the home position
RES: reserved
BCVS: copyboard cover open/close sensor: on/cover is open, of/cover is closed
NDFS: document length sensor 1 (PS801): on/document, of/no document
DLS0: document length sensor 2 (PS803); on/document, of/no document
DLS1: Reserved
4-72
document depending on the combination of the two sensors ON/OFF status
cover is closed)
of/paper is detected (at stand-by means the lower right
cover is open)
Figure 4-22
of/scanner is not in the home position