8-14
Confidential
8.1.4.9 Sensor Operational Check (Function code 32)
Function
This function allows you to check whether the 9 sensors.
Operating
Procedure
(1) Press the
3
and
2
keys in this order in the initial stage of the maintenance mode. The
machine beeps 1100 Hz and 400 Hz tones cyclically through the following volumes for
testing the speaker. To stop beeping, press the
Menu/Set
key.
Fig. 8-7
If the sensing status are as listed below, the LCD will show the following:
"DFDRFCCVTORC", "C1P1C2P2RMRAPO" and "CCMCYCKCFUOBORTR"
(which can be switched by pressing the
Black Start
key for machines.)
Given below is the relationship between the LCD indication, sensor names and sensor
status.
LCD Sensors
Sensing
status
DF
Document front sensor
No document detected.
DR
Document rear sensor
No document detected.
FC
Document cover open sensor
Document cover closed.
CV
Front cover open sensor
Front cover closed.
TC
Top cover open sensor
Top cover closed.
RC
Back cover open sensor
Back cover closed.
C1
Tray1 cassette open sensor
Tray1 closed.
P1
Tray1 recording paper sensor
Recording paper detected.
C2
Tray2 cassette open sensor
Tray2 closed.
P2
Tray2 recording paper sensor
Recording paper detected.
RM
Registration sensor
No recording paper detected.
RA
Fuser exit sensor
No recording paper detected.
PO
Out put tray full sensor
No paper jam.
CC*
Cyan cartridge sensor
Cyan cartridge loaded.
MC*
Magenta cartridge sensor
Magenta cartridge loaded.
YC*
Yellow cartridge sensor
Yellow cartridge loaded.
KC*
Black cartridge sensor
Black cartridge loaded.
Summary of Contents for MFC-9420CN
Page 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC 9420CN ...
Page 16: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Page 22: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Page 33: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Page 48: ...Confidential 3 1 4 CBV DBV Fig 3 16 Y M C K Fig 3 17 ...
Page 69: ...Confidential 3 3 5 Fig 3 35 ...
Page 73: ...Confidential 3 3 9 3 Interface Circuit Printer side Fig 3 38 ...
Page 82: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Page 85: ...Confidential 4 2 Cover page sample End page sample Fig 4 1 ...
Page 86: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 94: ...Confidential 5 5 5 1 1 AC Cord 1 Disconnect AC cord from the machine Fig 5 1 AC cord Machine ...
Page 175: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Page 203: ...Confidential CHAPTER 7 CLEANING ...
Page 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Page 213: ...8 6 Confidential Fig 8 2 Scanning Compensation Data List a b c d e f g h i j k l m n q ...
Page 224: ...8 17 Confidential Cover page sample End page sample Fig 8 8 ...
Page 255: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Page 279: ...Confidential 9 23 2 Image failure 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 280: ...Confidential 9 24 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 9 1 ...
Page 325: ...App 1 5 Confidential 6 Transfer Unit X X X X X X 7 1 2 3 Location SERIAL NO YEAR MONTH DATE ...
Page 398: ...B Power Supply PCB 100V 127V Confidential ...