5 - 4
Confidential
n
Disassembly Flowchart
Jam clear cover
Main PCB shield
Main PCB
Media module
cover
Main PCB shield
frame
Backup
battery
Handset mount
Top cover
Control panel ASSY
Document
pressure bar
Document front
sensor actuator
Document rear
sensor actuator
Upper hook switch
actuator
ADF parts
Harness cover
CIS glass
Pinch rollers
Document
pressure roller
CIS unit
Upper cover
Document
feed roller
Document
ejection roller
(NOTE 1)
- Control panel PCB
(Document front sensor
Document rear sensor)
- LCD
- Control panel
- Rubber keypad
(Cover open sensor)
(FAX1940CN/1840C)
Lower hook switch
actuator
Hook switch PCB
(FAX1940CN/
1840C)
Front cover
Media module cover
(MFC3340CN only)
Scanner drive unit
- Separation roller gear
- Document separation roller
- Document pull-in roller
- Scanner motor
Components on the
underside of the
upper cover
Components on
the top of the
upper cover
(FAX1940CN only)
Head/carriage unit
Carriage PCB
Ink refill ASSY
MJ/PS shield box
MJ PCB
Power supply PCB
Ink absorber box
(NOTE 2)
(NOTE 3)
Engine unit
Maintenance unit
CR encoder strip
CR timing belt
Paper pull-in gear shaft
and roller holder
PF sensor PCB
Paper pressure holder
Paper feed motor
Star wheel holder ASSY
Platen
Flushing case
Registration sensor actuator
PF encoder disk
Ejection idle gear
(NOTE 4)
(NOTE 5)
Paper ejection roller
Carriage motor
Sensors, encoders, and thermistors
(NOTE 1) On the control panel PCB are document front and rear sensors. In the rubber keypad in the
control panel ASSY is a cover open sensor.
(NOTE 2) On the ink cartridge PCB in the ink refill ASSY are four ink cartridge sensors. Also on the ink
refill ASSY is a large-volume ink cartridge sensor.
(NOTE 3) On the carriage PCB are a paper width sensor, CR encoder sensor and head thermistor.
(NOTE 4) On the maintenance unit is a purge cam switch.
(NOTE 5) On the PF sensor PCB are a registration sensor and PF encoder sensor.
Содержание FAX 1840C
Страница 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC3340CN 3240C FAX1940CN 1840C 1835C ...
Страница 9: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 18: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 50: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 91: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 96: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 140: ...5 42 Confidential n Reassembling Notes Route the battery harness beneath the ink supply tubes as shown below ...
Страница 167: ...5 69 Confidential Viewed from the left ...
Страница 171: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 189: ...6 16 Confidential Paper Feeding Check Patterns for the Paper Feed Roller and Paper Ejection Roller A Þ B Þ ...
Страница 191: ...6 18 Confidential Vertical Alignment Check Patterns ...
Страница 193: ...6 20 Confidential Margin Check Pattern ...
Страница 202: ...Confidential CHAPTER 7 CLEANING ...
Страница 205: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 213: ...8 6 Confidential FAX1940CN 1840C 1835C Black Start Mono Start key Stop Exit key Menu Set key and keys ...
Страница 216: ...8 9 Confidential Scanning Compensation Data List a b c d e f i ...
Страница 233: ...8 26 Confidential Paper Feeding Check Pattern for the Paper Feed Roller and Paper Ejection Roller A Þ B Þ ...
Страница 236: ...8 29 Confidential 1st sheet 2nd sheet Vertical Alignment Check Patterns ...
Страница 239: ...8 32 Confidential Margin Check Pattern ...
Страница 249: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 253: ...9 2 Confidential ...
Страница 254: ...9 3 Confidential ...
Страница 371: ...B Power Supply PCB U S A and Canadian models Confidential ...
Страница 372: ...B Power Supply PCB European and Asian models Confidential ...
Страница 401: ...Confidential February 05 SM FAX032 8XA901 5 Printed in Japan ...