Kyocera TASKalfa 620 TASKalfa 820 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 620 TASKalfa 820 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) Body
(2) Operation panel
1-1-3 Cross section view

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

1-3 MAINTENANCE MODE
1-3-1 Maintenance mode
(1) Executing a maintenance item
(2) Maintenance mode item list
(3) Contents of the maintenance mode items
1-3-2 Copier management
(1) Using the copier management mode
(2) Job accounting
(3) Default settings for copying
(4) Common default settings
(5) Weekly timer
(6) Configuring MP tray
(7) Registering non-standard sizes for originals
(8) Setting document management defaults
(9) Hard disk management
(10) Printing reports
(11) Checking total copy count
(12) Refreshing the drum
(13) Selecting the language

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
(20) There is a regular error between the centers of the original and copy image
when the DP is used
(21) There is a regular error between the leading edges of the original and copy image
when the DP is used
(22) A line appears at the leading or trailing edge
(23) A line appears at the leading or trailing edge
1-4-4 Electric problems
1-4-5 Mechanical problems

1-5 ASSEMBLY AND DISASSEMBLY
1-5-1 Precautions for assembly and disassembly
(1) Precautions
(2) Drum
(3) Toner container
1-5-2 Paper feed section
(1) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of
cassette 1 and 2
(2) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of
cassette 3 and 4
(3) Pressure adjustment of separation pulley (reference)
(4) Adjusting the center line for cassette 1 or 2
(5) Detaching and refitting the MP unit
(6) Detaching and refitting the MP paper feed pulley, MP forwarding pulley and
MP separation pulley
(7) Pressure adjustment of MP separation pulley
1-5-3 Main charging section
(1) Detaching and refitting the main charger unit
(2) Detaching and refitting the main charger grid
(3) Detaching the main charger wire cleaning pad
(4) Detaching and refitting the main charger wire
1-5-4 Optical section
(1) Detaching and refitting the exposure lamp
(2) Detaching and refitting the scanner wires
(2-1) Detaching the scanner wires
(2-2) Fitting the scanner wires
(3) Detaching the laser scanner unit
(4) Detaching and refitting the ISU (reference)
(5) Adjusting the longitudinal squareness (reference)
(6) Adjusting scanner image lateral squareness (reference)
(6-1) Adjusting the position of the laser scanner unit
(6-2) Adjusting the position of the ISU
1-5-5 Drum section
(1) Detaching and refitting the drum
(2) Detaching and refitting the drum heater
(3) Detaching and refitting the drum heater electrode
1-5-6 Developing section
(1) Detaching and refitting the developing unit
1-5-7 Transfer section
(1) Detaching and refitting the transfer unit
(2) Detaching and refitting the transfer belt
(3) Detaching and refitting the transfer roller
1-5-8 Cleaning section
(1) Detaching and refitting the cleaning unit
(2) Detaching and refitting the cleaning blade
1-5-9 Charge erasing section
(1) Detaching and refitting the PTC unit
(2) Detaching and refitting the PTC cleaning pad
(3) Detaching and refitting the PTC wire
1-5-10 Fuser section
(1) Detaching and refitting the fuser unit
(2) Detaching and refitting the lower cleaning roller
(3) Detaching and refitting the press roller
(4) Detaching and refitting the cleaning felt
(5) Detaching and refitting the fuser thermostat 1 and 2
(6) Detaching and refitting the fuser thermistor M and S
(7) Detaching and refitting the fuser heater M, S and L
(8) Detaching and refitting the heat roller
(9) Detaching and refitting the heat roller separation claws
(10) Detaching and refitting the fuser eject upper roller
1-5-11 Document processor (DP) section
(1) Detaching and refitting DP
(2) Detaching and refitting the DP original feed belt, DP forwarding pulley and
DP separation roller
(3) Detaching and refitting CIS
(4) Adjusting the tension of original feed belt
1-5-12 Others
(1) Detaching and refitting the waste toner box
(2) Detaching and refitting the developing rear fan filter
(3) Detaching and refitting the developing front fan filters
(4) Detaching and refitting the image formation fan filter
(5) Detaching and refitting the front cover filters
(6) Detaching and refitting the ozone filters

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
1-6-5 Remarks on scanner PWB replacement
1-6-6 Upgrading the printer board firmware
1-6-7 Remarks on hard disk unit (HDD) replacement

2-1 MECHANICAL CONSTRUCTION
2-1-1 Paper feed section
(1) Paper feed section 1 (cassette 1 and 2)
(2) Paper feed section 2 (cassette 3 and 4)
(3) Paper feed section 3
(4) MP tray and MP tray paper feed section
2-1-2 Main charger section
2-1-3 Optical section
(1) Original scanning
(2) Image printing
2-1-4 Developing section
(1) Single component developing system
2-1-5 Transfer section
2-1-6 Cleaning section
2-1-7 Fuser section
2-1-8 PTC section
2-1-9 Eject and feedshift section
2-1-10 Duplex section
(1) Circulation system (4 sheets circulation)
2-1-11 Document processor (DP) section

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

2-3 OPERATION OF THE PWBs
2-3-1 AC power source PWB
2-3-2 DC power source PWB
2-3-3 Main PWB
2-3-4 Engine PWB
2-3-5 Scanner PWB
2-3-6 CCD PWB
2-3-7 Deck PWB
2-3-8 Cassette PWB
2-3-9 Duplex PWB
2-3-10 Operation PWB
2-3-11 HDD relay PWB
2-3-12 DP main PWB

2-4 APPENDIXES
Maintenance parts list
Periodic maintenance procedures
Maintenance kits
Parts kits
Wiring diagram No.1
Wiring diagram No.2
Wiring diagram No.3
Wiring diagram No.4
Wiring diagram No.5
Wiring diagram No.6
Wiring diagram No.7
Wiring diagram No.8
Wiring diagram No.9
Wiring diagram No.10

INSTALLATION GUIDE
SIDE FEEDER
LARGE SIZE SIDE FEEDER
DOCUMENT FINISHER
CENTERFOLD UNIT
MULTI JOB TRAY
PUNCH UNIT
STOPPER GUIDE
PRINTING SYSTEM
SCAN SYSTEM

Number of pages: 521.