5-25
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 tones from the speaker, press the SET or Menu key.
If the sensing statuses are as defined below, the LCD shows the 1st sensor group
"DFDRCVRSCCP1****".
(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.
*1 For ADF models only
*2 For disc printing models only
Items
shown on
the LCD
Sensors Sensing status (display/no display)
DF
*1
Document detection sensor No document/Document present
DR
*1
Document scanning position sensor No document/Document present
CV Document scanner sensor Cover closed/Cover 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
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
OR Pressure roller release sensor Pressure roller depressed/Pressure roller released
CD
*2
Disc guide sensor Disc guide closed/Disc guide open
VT Head thermistor Normal temperature/Abnormal temperature
T1 High temperature detector in the complex IC
(for main PCB)
Normal temperature/Abnormal temperature
T2
*1
Carriage motor driver temperature detection Normal temperature/Abnormal temperature
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