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Make/Model Information:

  • Brand:   Kyocera-mita
  • Models included:
    • Kyocera-Mita FS-1800
    • Kyocera-Mita FS-3800

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   289
  • File size:  ∼ 7.00  MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   BMKT-1057

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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Page printers
FS-1800/1800N | FS-3800/3800N
About the chapters
Unless otherwise specified, the content of this manual apply to both printer models of Ecosys FS-
1800, FS-1800N, FS-3800 and FS-3800N.
The manual is comprised of the following chapters:
Chapter 1: Product Information
Chapter 2: Installation/Operation
Chapter 3: Maintenance/Adjustments
Chapter 4: Operation Overview
Chapter 5: Disassembly
Chapter 6: Troubleshooting
Appendix A: Diagrams
Appendix B: Status Page
Appendix C: Interface
FS-1800/1800N | FS-3800/3800N
Version Date Replaced Pages Remarks
1.00A 23-Oct-2000 -
1.10 4-Dec-2000
1.20 4-Jul-2001
1-7, 3-12, 3-14, 3-15,
3-16, 4-37, 5-12,
5-37, 6-11,6-15,
6-16, 6-17, 6-18,
6-19, 6-20, 6-21,
6-22,6-23, 6-24, B-4,
1-6, 1-7, 2-18,
2-20, 3-14, 3-15,
3-16, 3-19, 3-20
Chapter 1 Contents
1-1 Printer specifications
1-1-1 Specifications
(1) Engine
(2) Controller
(3) Weight and dimensions
(4) Power requirements
(5) Environmental requirements
1-1-2 Available option memory/device
(1) Expansion memory (DIMM)
(2) Memory card (CompactFlash)
(3) Hard disk (Microdrive)
1-2 Names of parts
1-2-1 Names of parts
1-3 Safety information
1-3-1 Safety information
(1) Laser safety
(2) Laser notice
(3) Laser caution label on the scanner unit
(4) CDRH regulations (U.S.A.)
(5) Ozone concentration
(6) FCC statement (U.S.A.)
a) For the FS-1800 and FS-3800 models
b) For the FS-1800N and FS-3800N models
(7) Canadian Department of Communications compliance statement
(8) Avis de conformité aux normes du ministère des Communications du Canada
(9) ISO 7779
(10) CE marking directive
(11) Declaration of conformity (Australia)
1-4 Environmental requirements
1-4-1 Environmental conditions
(1) Clearance
(2) Places to avoid
(3) Note on power
(4) Removing the printer
1-5 About the toner container
1-5-1 Toner container
(1) Toner container handling
(2) Toner container storage
Chapter 2 Contents
2-1 Unpacking
2-1-1 Unpacking and inspection
2-2 Installing the printer
2-2-1 Installing the toner container
Removing the toner container
2-2-2 Installing the waste toner bottle
Removing the waste toner bottle
2-2-3 Developer initialization (automatic)
2-2-4 Expanding the memory (DIMM)
(1) Minimum memory requirements
(2) DIMM specifications
(3) Notes on handling DIMM
(4) Installing the DIMM
(5) Testing the expansion memory
(6) Installing the option hard disk (Microdrive)
(7) Installing the option memory card (CompactFlash)
(8) Installing the option network interface card
2-3 Using the operator panel
2-3-1 Operator panel
(1) Indicators and keys
(2) Interface indicator
(3) Paper size indicator
(4) Paper type Indicator
(5) Message display
2-3-2 Menu selection system
(1) Menu selection and sequence
Chapter 3 Contents
3-1 Maintenance/Adjustments
3-1-1 Life expectancy of modules
3-1-2 Toner container
(1) When to replace the toner container
(2) Notes on changing the toner container
(3) Toner container replacement
(4) Toner saver mode (EcoPrint)
(5) Replacing the waste toner bottle
3-1-3 Cleaning the printer
(1) Main charger unit
(2) Cleaning the main charger wire and grid
Main charger wire
(3) Paper feed unit
(4) Replacing the developer
Shipping the developer
(5) Developer initialization (Toner install mode)
(6) Developer refreshing mode
(7) Drum cleaning mode
3-1-4 Updating the firmware
(1) Firmware program data format
(2) Downloading the engine and controller firmware
From the parallel interface
From the memory card (CompactFlash)
(3) Downloading operator panel message data
(4) Downloading errors
Chapter 4 Contents
4-1 Electrophotographic system
4-1-1 Electrophotographic cycle
(1) Main charging
Components of drum and main charger unit
Amorphus-silicon drum
Charging the drum
(2) Exposure
Laser scanner unit
Drum surface potential
(3) Development
(4) Transfer
(5) Fusing
Fuser unit mechanism
(6) Cleaning
4-2 Paper feeding system
4-2-1 Paper feed control
(1) Paper feeding mechanism
Drive and paper feed unit
MP tray paper feed unit
Fuser unit and face up/down output
4-3 Electrical control system
4-3-1 Electrical parts layout
(1) Circuit boards, sensors and switches
(2) Motors, solenoids, clutches and others
(3) Drum unit and developer
4-3-2 Operation of circuit boards
(1) Main board
Main board KP-777 for FS-1800/1800N models
Main board KP-858 for FS-3800/3800N models
(2) Engine board
Eraser lamp control circuit
Toner motor control circuit
Heater lamp control circuit
(3) Sensor board
Paper gauge sensing circuit
Interlock circuit
Paper size detecting circuit
(4) Power supply unit
(5) High voltage unit
Chapter 5 Contents
5-1 General instructions
5-1-1 Screw/hardware
5-1-2 Before starting disassembly
5-2 Disassembly
5-2-1 Removing the developer
(1) Removing the developer
5-2-2 Removing the paper feed unit
5-2-3 Removing the main charger unit
5-2-4 Removing the operator panel and outer covers
(1) Removing the operator panel
(2) Removing the top cover/face-down output tray
(3) Removing the right cover
(4) Removing the left cover
5-2-5 Removing the drum unit
5-2-6 Removing the pickup roller and feed roller
5-2-7 Removing the MP paper feed unit
5-2-8 Removing the transfer roller
5-2-9 Removing the controller unit and the principal circuit boards
(1) Removing and opening the controller unit
(2) Removing the engine board and power supply unit
(3) Removing the main board
(4) Removing the high voltage unit
(5) Removing the sensor board
5-2-10 Removing the drive unit and main motor
5-2-11 Removing and splitting the fuser unit
(1) Removing the separators
(2) Removing the heater lamp
(3) Removing the heat roller
(4) Removing the thermistor and the thermal cutout
(5) Removing the press roller
5-2-12 Removing the laser scanner unit
Chapter 6 Contents
6-1 Troubleshooting
6-1-1 General error handling
(1) Maintenance messages
(2) Error messages
6-1-2 Diagnostic (Service error messages)
(1) A0 ?Zero cross signal error
(2) A2 ?Abnomal high temperature error
(3) B2 ?Option paper feeder PF-60 (Top) paper feed motor error
(4) B3 ?Option paper feeder PF-60 (Middle) paper feed motor error
(5) B4 ?Option paper feeder PF-60 (Bottom) paper feed motor error
(6) C0 ?Option paper feeder PF-60 communication error
(7) C1 ?Option duplexer DU-60 communication error
(8) C2 ?Option duplexer DU-60 side registration error
(9) C4 ?Option sorter SO-60 communication error
(10) CE ?Option bulk paper feeder PF-8E motor error
(11) CF ?Option bulk paper stacker HS-8E motor error
(12) E0 ?Communication error
(13) E1 ?Main motor error
(14) E2 ?Laser scanner unit (Polygon motor) error
(15) E3 ?Laser scanner unit (Pin photo diode sensor) error
(16) E4 ?Fuser unit error
(17) E5 ?Eraser lamp error
(18) E9 ?Toner motor error
(19) ED ?Flash ROM error
(20) F0 ?LCD controller board error
(21) F1 ?System DIMM [board] error
(22) F2 ?Main or expanded memory error
(23) F3 ?General failure
(24) 99 ?Toner refreshing mode error
6-1-3 Other problems
(1) False “Paper feed unit Open”
(2) False “Top cover Open”
(3) False “Side cover Open”
(4) Defective waste toner bottle detecting
(5) Defective paper jam detecting
(6) Defective paper gauge sensing
(7) Defective paper size detecting
(8) Defective message displaying (LCD)
(9) Defective face up/down solenoid operating
6-1-4 Circuit board terminal voltages
(1) Engine board
6-1-5 Assignment of circuit board connector pins
6-1-6 Print quality problems
(1) Completely blank printout
(2) All-black printout
(3) Dropouts
(4) Black dots
(5) Black horizontal streaks
(6) Black vertical streaks
(7) Unsharpness
(8) Gray background
(9) Dirt on the top edge or back of the paper
(10) Undulated printing at the left edge (scanning start position)
Repetitive defects gauge
6-1-7 Correcting a paper jam
(1) Jam in the rear cover
(2) Jam inside the printer
Appendix A Contents
Timing charts
Cassette feeding, A4 size, face-down tray output
Cassette feeding, Letter size, face-down tray output
Cassette feeding, Legal size, face-down tray output
MP tray feeding, Letter size, face-down tray output
MP tray feeding, Legal size, face-down tray output
Wiring diagram
Schematic diagrams
Engine board 1/8
Engine board 2/8
Engine board 3/8
Engine board 4/8
Engine board 5/8
Engine board 6/8
Engine board 7/8
Engine board 8/8
Main board (TK-777) 1/12
Main board (TK-777) 2/12
Main board (TK-777) 3/12
Main board (TK-777) 4/12
Main board (TK-777) 5/12
Main board (TK-777) 6/12
Main board (TK-777) 7/12
Main board (TK-777) 8/12
Main board (TK-777) 9/12
Main board (TK-777) 10/12
Main board (TK-777) 11/12
Main board (TK-777) 12/12
Main board (TK-858) 1/12
Main board (TK-858) 2/12
Main board (TK-858) 3/12
Main board (TK-858) 4/12
Main board (TK-858) 5/12
Main board (TK-858) 6/12
Main board (TK-858) 7/12
Main board (TK-858) 8/12
Main board (TK-858) 9/12
Main board (TK-858) 10/12
Main board (TK-858) 11/12
Main board (TK-858) 12/12
Power supply unit (120 V AC model, Sanken®)
Power supply unit (220 - 240 V AC model, Sanken®)
Power supply unit (220 - 240 V AC model, Sharp®)
Appendix B Contents
Status page
Printing the service status page
Service information on the status page
Details of service information
Appendix C Contents
Parallel interface
Selecting the parallel interface mode
Parallel interface pin assignment
Parallel interface signals
Serial interface
RS-232C interface voltage levels
Connector configurations
RS-232C - For computers with a DB-9 connector
RS-232C - For computers with a DB-25 connector
Ordering Information 3
Enclosure 4
Upper Frame Unit 6
Drive Unit 9
Controller Box 11
Paper Feed Unit 14
Fuser Unit 17
Drum Unit 20
Developer Unit 22
Frame MP Assembly 24
Paper Cassette 26
Tray MP Assembly 29
Miscellaneous 31
Ordering Information
1. ISP refers to Initially- supplied part; SP refers to Service part.
2. The Ref. No's correspond to those numbers in the exploded diagram.
3. Availability of ISP (Initially- Supplied Parts) varies depending on the destination of the product. For
details, refer to the ISP List supplied separately by Kyocera.
4. Those parts bearing numbers in the diagram but not listed in the parts list are not suppliable as a gen-
eral supply part.
1. Enclosure


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