5-22
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 tone signals cyclically 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
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
AC
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
PP
Switchback sensor
No recording paper/
Recording paper present
A3
Document width sensor
No document (A3)/
Document present (A3)
RB
Second side document scanning
position sensor
No document/Document present
VT
Head thermistor
Normal temperature/Abnormal
temperature
T1
High temperature detector in the
complex IC (for main PCB)
Normal temperature/Abnormal
temperature
Summary of Contents for MFC-J6920DW
Page 123: ...3 3 Confidential 2 PACKING ...
Page 146: ...3 26 Confidential 3 Set the protective part Protective part ...
Page 308: ...5 37 Confidential pfadj2 Pattern ...
Page 315: ...5 44 Confidential Margin Check Pattern ...
Page 362: ...App 3 8 Confidential When the following screen appears click Close to close the screen ...