5-24
Confidential
1.3.11 Sensor Operational Check (Maintenance mode 32)
< Function >
This function checks whether sensors work normally.
< Operating Procedure >
(1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode.
The machine sounds 1,100 Hz and 400 Hz tones cyclically through the following
volumes for testing the speaker:
Note: To stop beeping, press the SET key.
If the sensing statuses are as defined below, the LCD shows the 1st sensor group
"DFDRCVRSCCP1**AC."
(2) Press the Mono Start key to switch to the next sensor group.
If asterisks (**) appear on the LCD, it means that the corresponding sensor does
not exist on the model.
Given below is the relationship between the LCD indication, sensor name and sensor status.
LCD Sensors Sensing status (display/no display)
DF Document detection sensor No document/Document present
DR
First side document scanning position sensor
No document/Document present
CV Document scanner sensor
Document scanner closed/Document
scanner opened
RS Registration sensor
No recording paper/Recording paper present
CC Ink cartridge cover sensor Cover closed/Cover opened
P1 Purge cam sensor Origin/Out of origin
AC
*1
ADF cover sensor Cover closed/Cover opened
IK Black ink cartridge detection sensor Cartridge present/No cartridge
IY Yellow ink cartridge detection sensor Cartridge present/No cartridge
IC Cyan ink cartridge detection sensor Cartridge present/No cartridge
IM Magenta ink cartridge detection sensor Cartridge present/No cartridge
EK Black ink remaining sensor Ink present/No ink
EY Yellow ink remaining sensor Ink present/No ink
EC Cyan ink remaining sensor Ink present/No ink
EM Magenta ink remaining sensor Ink present/No ink
LT
*2
Paper tray 2 detection sensor Paper tray 2 present/No paper tray 2
MP
*3
MP paper detection sensor
No recording paper/Recording paper present
PP Switchback sensor
No recording paper/Recording paper present
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