Kyocera TASKalfa 420i TASKalfa 520i Service Manual


Accurate, clear and concise text, combined with detailed illustrations, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present service manual Kyocera TASKalfa 420i TASKalfa 520i contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

1-1 SPECIFICATIONS
1-1-1 Specifications
1-1-2 Parts names
(1) Machine
(2) Operation panel
1-1-3 Machine cross section

1-2 INSTALLATION
1-2-1 Installation environment
1-2-2 Unpacking and installation
(1) Installation procedure
(2) Setting initial copy modes
1-2-3 Installing the key counter (option)
1-2-4 Replacing the expanded memory

1-3 MAINTENANCE MODE
1-3-1 Maintenance mode
(1) Executing a maintenance item
(2) Maintenance modes item list
(3) Contents of the maintenance mode items
1-3-2 Management mode
(1) Using the management mode
(2) Common Settings
(3) Copy Settings
(4) Sending Settings
(5) Document Box Settings
(6) Printer Settings
(7) Printing Reports/Sending Notice
(8) Adjustment/Maintenance
(9) Date/Timer
(10) Editing Destination (Address Book/Adding One Touch Keys)
(11) Internet Browser Setup
(12) Applications
(13) System Settings
(14) User Login Administration
(15) Job accounting

1-4 TROUBLESHOOTING
1-4-1 Paper misfeed detection
(1) Paper misfeed indication
(2) Paper misfeed detection conditions
(3) Paper misfeeds
1-4-2 Self-diagnosis
(1) Self-diagnostic function
(2) Self diagnostic codes
1-4-3 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 copy 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 consistently misaligned with the original
(12) The leading edge of the image is sporadically misaligned with the original
(13) Paper creases
(14) Offset occurs
(15) Image is partly missing
(16) Fusing is poor
(17) Image is out of focus
(18) Image center does not align with the original center
(19) Image is not square
1-4-4 Electric problems
1-4-5 Mechanical problems
1-4-6 Send error code
(1) Scan to SMB error codes
(2) Scan to FTP error codes
(3) Scan to E-mail error codes
(4) Network Twain error codes
(5) Software trouble error codes

1-5 ASSEMBLY AND DISASSEMBLY
1-5-1 Precautions for assembly and disassembly
(1) Precautions
(2) Drum
(3) Toner
(4) How to tell a genuine Kyocera Mita toner container
1-5-2 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
1-5-3 Optical section
(1) Detaching and refitting the exposure lamp
(2) Detaching and refitting the scanner wires
(3) Detaching and refitting the ISU (reference)
(4) Detaching and refitting the laser scanner unit
(5) Adjusting the skew of the laser scanner unit (reference)
1-5-4 Drum section
(1) Detaching and refitting the drum unit
(2) Detaching and refitting the main charger unit
(3) Detaching and refitting the drum separation claws
1-5-5 Developing section
(1) Detaching and refitting the developing unit
1-5-6 Transfer section
(1) Detaching and refitting the transfer roller unit
1-5-7 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
(5) Detaching and refitting the heat roller
(6) Detaching and refitting the fuser thermistor 1 and 2
(7) Adjusting front position of the fuser unit (adjusting lateral squareness)
1-5-8 Others
(1) Detaching and refitting the ozone filter 1 and 2
(2) Detaching and refitting the dust filter 1 and 2
(3) Detaching and refitting the ISU filter
(4) Detaching and refitting the hard disk
(5) Direction of installing the principal fan motors

1-6 REQUIREMENTS ON PWB REPLACEMENT
1-6-1 Upgrading the firmware
1-6-2 Adjustment-free variable resistors (VR)
1-6-3 Remarks on main PWB replacement
1-6-4 Remarks on engine PWB replacement

2-1 MECHANICAL CONSTRUCTION
2-1-1 Paper feed section
(1) Cassette paper feed section
(2) MP tray paper feed section
2-1-2 Optical section
(1) Image scanner section
(2) Laser scanner section
2-1-3 Drum section
2-1-4 Developing section
(1) Single component developing system
2-1-5 Transfer and separation sections
2-1-6 Fuser section
2-1-7 Eject and switchback sections
2-1-8 Duplex section

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

2-3 OPERATION ON THE PWBs
2-3-1 Power source PWB
2-3-2 Engine PWB
2-3-3 Main PWB
2-3-4 ISM PWB
2-3-5 Main operation PWB

2-4 APPENDIXES
Maintenance parts list
Maintenance kits
Periodic maintenance procedures
Chart of image adjustment procedures
Wiring diagram No.1
Wiring diagram No.2
Wiring diagram No.3
Wiring diagram No.4
Wiring diagram No.5

INSTALLATION GUIDE
DOCUMENT PROCESSOR
PAPER FEEDER
3000 SHEETS PAPER FEEDER
DOCUMENT FINISHER
3000 SHEETS DOCUMENT FINISHER
CENTER-FOLDING UNIT
MAILBOX
HOLE PUNCH UNIT
BUILT-IN FINISHER
JOB SEPARATOR
FAX System (S)

Number of pages: 504