Service Manual KYOCERA FS-9120DN, FS-9520DN;
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your KYOCERA FS-9120DN, FS-9520DN copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of KYOCERA FS-9120DN, FS-9520DN photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:

1-1 SPECIFICATIONS
1-1-1 Specifications
1-1-2 Parts names
(1) Printer
(2) Operator panel
1-1-3 Machine cross section
1-1-4 Drive system
(1) Drive system 1 (drive motor and eject motor drive trains)
(2) Drive system 2 (paper feed motor drive train)

1-2 HANDLING PRECAUTIONS
1-2-1 Drum
1-2-2 Toner
1-2-3 Installation environment

1-3 INSTALLATION
1-3-1 Unpacking and installation
(1) Installation procedure
1-3-2 Installing the cassette heater (option)
1-3-3 Installing DIMMs (option)
1-3-4 Installing the network interface card (option)
1-3-5 Installing the hard disk (option)
1-3-6 Installing the memory card (option)

1-4 MAINTENANCE MODE
1-4-1 Service mode
(1) Executing service mode
1-4-2 Maintenance mode
(1) Maintenance mode
(2) Executing a maintenance item
(3) Contents of maintenance mode items

1-5 TROUBLESHOOTING
1-5-1 Paper misfeed detection
(1) Paper misfeed indication
(2) Paper misfeed detection conditions
(3) Paper misfeeds
1-5-2 Self-diagnosis
(1) Self-diagnostic function
(2) Self-diagnostic codes
1-5-3 Image formation problems
(1) No image appears (entirely white)
(2) No image appears (entirely black)
(3) Image is too light
(4) Background is visible
(5) A white line appears longitudinally
(6) A black line appears longitudinally
(7) A black line appears laterally
(8) One side of the print image is darker than the other
(9) Black dots appear on the image
(10) Image is blurred
(11) The leading edge of the image is misaligned
(12) Paper creases
(13) Offset occurs
(14) Image is partly missing
(15) Fusing is poor
(16) Image is out of focus
(17) Image is not square
1-5-4 Electrical problems
(1) The machine does not operate when the power switch is turned on
(2) The drive motor does not operate (C2000)
(3) The paper feed motor does not operate (C2500)
(4) The eject motor does not operate
(5) The upper lift motor does not operate (C1010)
(6) The lower lift motor does not operate (C1020)
(7) Cooling fan motor 1 does not operate
(8) Cooling fan motor 2 does not operate
(9) Cooling fan motor 3 does not operate
(10) Cooling fan motor 4 does not operate
(11) Cooling fan motor 5 does not operate
(12) Cooling fan motor 6 does not operate
(13) Cooling fan motor 7 does not operate
(14) The upper paper feed clutch does not operate
(15) The lower paper feed clutch does not operate
(16) Feed clutch 1 does not operate
(17) Feed clutch 2 does not operate
(18) Feed clutch 3 does not operate
(19) The MP paper feed clutch does not operate
(20) The MP feed clutch does not operate
(21) The registration clutch does not operate
(22) The feedshift solenoid does not operate
(23) The toner feed solenoid does not operate
(24) The cleaning lamp does not turn on
(25) The fuser heater does not turn on (C6000)
(26) The fuser heater does not turn off
(27) Main charging is not performed
(28) Transfer charging is not performed
(29) No developing bias is output
(30) The message requesting paper to be loaded is shown when paper is present in the upper cassette
(31) The message requesting paper to be loaded is shown when paper is present in the lower cassette
(32) The message requesting paper to be loaded is shown when paper is present on the MP tray
(33) The size of paper in the upper cassette is not displayed correctly
(34) The size of paper in the lower cassette is not displayed correctly
(35) The printing width of the paper on the MP tray is not detected correctly
(36) A paper jam in the paper feed, paper conveying or fuser section is indicated when the power switch is turned on
(37) The message requesting covers to be closed is displayed when the front cover and conveying cover are closed
(38) Others
1-5-5 Mechanical problems
(1) No primary paper feed
(2) No secondary paper feed
(3) Skewed paper feed
(4) Multiple sheets of paper are fed at one time
(5) Paper jams
(6) Toner drops on the paper conveying path
(7) Abnormal noise is heard

1-6 ASSEMBLY AND DISASSEMBLY
1-6-1 Precautions for assembly and disassembly
(1) Precautions
1-6-2 Paper feed section
(1) Detaching and refitting the forwarding, paper feed and separation pulleys
(2) Detaching and refitting the MP separation, MP paper feed and MP forwarding pulleys
(3) Detaching and refitting the left and right registration cleaner
1-6-3 Laser scanner unit
(1) Detaching and refitting the laser scanner unit
(2) Adjusting the skew of the laser scanner unit (reference)
1-6-4 Drum section
(1) Detaching and refitting the drum unit
(2) Detaching and refitting the main charger unit
(3) Detaching and refitting the drum separation claw assemblies
1-6-5 Developing section
(1) Detaching and refitting the developing unit
1-6-6 Transfer section
(1) Detaching and refitting the transfer roller assembly
1-6-7 Fuser section
(1) Detaching and refitting the fuser unit
(2) Detaching and refitting the heat roller separation claws
(3) Detaching and refitting the press roller
(4) Detaching and refitting the fuser heater M and S
(5) Detaching and refitting the heat roller
(6) Detaching and refitting the fuser unit thermistor 1 and 2
1-6-10 PWBs
(1) Detaching and refitting the main controller PWB
(2) Detaching and refitting the engine controller PWB
(3) Detaching and refitting the power supply unit
(4) Detaching and refitting the high-voltage transformer unit
(5) Detaching and refitting the operator panel PWB

1-7 REQUIREMENTS ON PWB REPLACEMENT
1-7-1 Downloading printer firmware for upgrade
(1) Format for the firmware files
(2) Downloading firmware via the parallel interface
(3) Downloading firmware using the memory card
(4) Downloading message data

2-1 MECHANICAL CONSTRUCTION
2-1-1 Paper feed section
2-1-2 Main charging section
2-1-3 Laser scanner unit
(1) Laser scanner unit
2-1-4 Developing section
(1) Formation of magnetic brush
(2) Computing the absolute humidity
2-1-5 Transfer and separation sections
2-1-6 Cleaning and charge erasing sections
2-1-7 Fuser section
2-1-8 Eject and switchback sections
2-1-9 Duplex unit

2-2 ELECTRICAL PARTS LAYOUT
2-2-1 Electrical parts layout
(1) PWBs
(2) Switches and sensors
(3) Motors
(4) Other electrical components

2-3 OPERATION OF THE PWBs
2-3-1 Power supply unit
2-3-2 Engine controller PWB
2-3-3 Main controller PWB

2-4 APPENDIXES
Timing chart No
Timing chart No
Timing chart No
Timing chart No
Timing chart No
Timing chart No
Wiring diagram

Numbers of pages: 193.