RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE. DISPOSE OF
USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
It may be illegal to dispose of this battery into the municipal waste stream. Check with your local
solid waste officials for details in your area for proper disposal.
ATTENTION
IL Y A UN RISQUE D’EXPLOSION SI LA BATTERIE EST REMPLACEE PAR UN MODELE DE
TYPE INCORRECT. METTRE AU REBUT LES BATTERIES UTILISEES SELON LES INSTRUCTIONS DONNEES.
Il peut être illégal de jeter les batteries dans des eaux d’égout municipales. Vérifiez avec les fonctionnaires municipaux de votre région pour les détails concernant des déchets solides et une mise
au rebut appropriée.
Revision history
RevisionDateReplaced pagesRemarks
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Safety precautions
This booklet provides safety warnings and precautions for our service personnel to ensure the safety of
their customers, their machines as well as themselves during maintenance activities. Service personnel
are advised to read this booklet carefully to familiarize themselves with the warnings and precautions
described here before engaging in maintenance activities.
Safety warnings and precautions
Various symbols are used to protect our service personnel and customers from physical danger and
to prevent damage to their property. These symbols are described below:
DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect
compliance with warning messages using this symbol.
WARNING: Serious bodily injury or death may result from insufficient attention to or incorrect compliance
with warning messages using this symbol.
CAUTION: Bodily injury or damage to property may result from insufficient attention to or incorrect
compliance with warning messages using this symbol.
Symbols
The triangle () symbol indicates a warning including danger and caution. The specific point
of attention is shown inside the symbol.
General warning.
Warning of risk of electric shock.
Warning of high temperature.
indicates a prohibited action. The specific prohibition is shown inside the symbol.
General prohibited action.
Disassembly prohibited.
indicates that action is required. The specific action required is shown inside the symbol.
General action required.
Remove the power plug from the wall outlet.
Always ground the copier.
1.Installation Precautions
WARNING
• Do not use a power supply with a voltage other than that specified. Avoid multiple connections to
one outlet: they may cause fire or electric shock. When using an extension cable, always check
that it is adequate for the rated current. .............................................................................................
• Connect the ground wire to a suitable grounding point. Not grounding the copier may cause fire or
electric shock. Connecting the earth wire to an object not approved for the purpose may cause
explosion or electric shock. Never connect the ground cable to any of the following: gas pipes,
lightning rods, ground cables for telephone lines and water pipes or faucets not approved by the
• Do not place the copier on an infirm or angled surface: the copier may tip over, causing injury. .......
• Do not install the copier in a humid or dusty place. This may cause fire or electric shock. ................
• Do not install the copier near a radiator, heater, other heat source or near flammable material.
This may cause fire. .........................................................................................................................
• Allow sufficient space around the copier to allow the ventilation grills to keep the machine as cool
as possible. Insufficient ventilation may cause heat buildup and poor copying performance. ...........
• Always handle the machine by the correct locations when moving it. ...............................................
• Always use anti-toppling and locking devices on copiers so equipped. Failure to do this may cause
the copier to move unexpectedly or topple, leading to injury. ...........................................................
• Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is accidentally ingested, drink a lot of water to dilute it in the stomach and obtain medical attention immediately. If it gets into the eyes, rinse immediately with copious amounts of water and obtain medical
• Under no circumstances attempt to bypass or disable safety features including safety mechanisms
and protective circuits. .....................................................................................................................
• Always use parts having the correct specifications. ..........................................................................
• Always use the thermostat or thermal fuse specified in the service manual or other related brochure when replacing them. Using a piece of wire, for example, could lead to fire or other serious
• Handle the charger sections with care. They are charged to high potentials and may cause electric
shock if handled improperly. ............................................................................................................
CAUTION
• Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are
safely secured so they will not be caught in rotating sections. ..........................................................
• Use utmost caution when working on a powered machine. Keep away from chains and belts. ........
• Handle the fixing section with care to avoid burns as it can be extremely hot. ..................................
• Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause
abnormally high temperatures. ........................................................................................................
• Do not remove the ozone filter, if any, from the copier except for routine replacement. ....................
• Do not pull on the AC power cord or connector wires on high-voltage components when removing
them; always hold the plug itself. .....................................................................................................
• Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a
cable cover or other appropriate item. .............................................................................................
• Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks. ........
• Remove toner completely from electronic components. ...................................................................
• Run wire harnesses carefully so that wires will not be trapped or damaged. ....................................
• After maintenance, always check that all the parts, screws, connectors and wires that were
removed, have been refitted correctly. Special attention should be paid to any forgotten connector,
trapped wire and missing screws. ...................................................................................................
• Check that all the caution labels that should be present on the machine according to the instruction
handbook are clean and not peeling. Replace with new ones if necessary. ......................................
• Handle greases and solvents with care by following the instructions below: .....................................
· Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely.
· Ventilate the room well while using grease or solvents.
· Allow applied solvents to evaporate completely before refitting the covers or turning the power
switch on.
· Always wash hands afterwards.
• Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to
fire in a furnace, etc. .......................................................................................................................
• Should smoke be seen coming from the copier, remove the power plug from the wall outlet imme-
1-1-2 Parts names............................................................................................................................................1-1-3
(1) Body ..................................................................................................................................................1-1-3
1-2-2 Unpacking and installation......................................................................................................................1-2-3
(11) Checking total copy count .............................................................................................................1-3-105
(12) Refreshing the drum......................................................................................................................1-3-105
(13) Selecting the language..................................................................................................................1-3-105
2KN/2KP
1-4 Troubleshooting
1-4-1 Paper misfeed detection .........................................................................................................................1-4-1
(1) Paper misfeed indication ...................................................................................................................1-4-1
(2) Paper misfeed detection conditions ..................................................................................................1-4-2
(3) Paper misfeeds ...............................................................................................................................1-4-10
(1) No image appears (entirely white)...................................................................................................1-4-51
(2) No image appears (entirely black)...................................................................................................1-4-52
(3) Image is too light. ............................................................................................................................1-4-53
(4) Background is visible.......................................................................................................................1-4-53
(5) A white line appears longitudinally. .................................................................................................1-4-53
(6) A black line appears longitudinally. .................................................................................................1-4-54
(7) A black line appears laterally...........................................................................................................1-4-54
(8) One side of the copy image is darker than the other.......................................................................1-4-54
(9) Black dots appear on the image......................................................................................................1-4-55
(10) Image is blurred...............................................................................................................................1-4-55
(11) The leading edge of the image is consistently misaligned with the original. ...................................1-4-55
(12) The leading edge of the image is sporadically misaligned with the original....................................1-4-55
(13) Paper creases. ................................................................................................................................1-4-56
(15) Image is partly missing....................................................................................................................1-4-56
(16) Fusing is poor..................................................................................................................................1-4-57
(17) Image is out of focus. ......................................................................................................................1-4-57
2KN/2KP
(18) Image center does not align with the original center.......................................................................1-4-57
(19) Image is not square.........................................................................................................................1-4-57
(20) There is a regular error between the centers of the original and copy image
when the DP is used. ......................................................................................................................1-4-58
(21) There is a regular error between the leading edges of the original and copy image
when the DP is used. ......................................................................................................................1-4-58
(22) A line appears at the leading or trailing edge. .................................................................................1-4-58
(23) A line appears at the leading or trailing edge. .................................................................................1-4-58
1-4-4 Electric problems ..................................................................................................................................1-4-59
1-5-2 Paper feed section..................................................................................................................................1-5-3
(1) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of
cassette 1 and 2................................................................................................................................1-5-3
(2) Detaching and refitting the paper feed pulley, forwarding pulley and separation pulley of
cassette 3 and 4..............................................................................................................................1-5-10
(3) Pressure adjustment of separation pulley (reference).....................................................................1-5-14
(4) Adjusting the center line for cassette 1 or 2 ....................................................................................1-5-15
(5) Detaching and refitting the MP unit .................................................................................................1-5-17
(6) Detaching and refitting the MP paper feed pulley, MP forwarding pulley and
(7) Pressure adjustment of MP separation pulley.................................................................................1-5-24
1-5-3 Main charging section...........................................................................................................................1-5-25
(1) Detaching and refitting the main charger unit..................................................................................1-5-25
(2) Detaching and refitting the main charger grid .................................................................................1-5-26
(3) Detaching the main charger wire cleaning pad ...............................................................................1-5-26
(4) Detaching and refitting the main charger wire.................................................................................1-5-27
(1) Detaching and refitting the developing unit .....................................................................................1-5-48
1-5-7 Transfer section ....................................................................................................................................1-5-49
(1) Detaching and refitting the transfer unit ..........................................................................................1-5-49
(2) Detaching and refitting the transfer belt ..........................................................................................1-5-51
(3) Detaching and refitting the transfer roller ........................................................................................1-5-53
(1) Detaching and refitting the waste toner box....................................................................................1-5-83
(2) Detaching and refitting the developing rear fan filter.......................................................................1-5-84
(3) Detaching and refitting the developing front fan filters ....................................................................1-5-84
(4) Detaching and refitting the image formation fan filter......................................................................1-5-85
(5) Detaching and refitting the front cover filters...................................................................................1-5-86
(6) Detaching and refitting the ozone filters..........................................................................................1-5-87
1-6 Requirements on PWB Replacement
1-6-1 Upgrading the firmware...........................................................................................................................1-6-1
1-6-3 Remarks on main PWB replacement......................................................................................................1-6-2
1-6-4 Remarks on engine PWB replacement...................................................................................................1-6-3
1-6-5 Remarks on scanner PWB replacement.................................................................................................1-6-3
1-6-6 Upgrading the printer board firmware .....................................................................................................1-6-4
1-6-7 Remarks on hard disk unit (HDD) replacement ......................................................................................1-6-4
2-1 Mechanical construction
2-1-1 Paper feed section..................................................................................................................................2-1-1
(1) Paper feed section 1 (cassette 1 and 2)............................................................................................2-1-1
(2) Paper feed section 2 (cassette 3 and 4)............................................................................................2-1-3
(3) Paper feed section 3 .........................................................................................................................2-1-5
(4) MP tray and MP tray paper feed section...........................................................................................2-1-7
2-1-2 Main charger section...............................................................................................................................2-1-9
(1) Original scanning.............................................................................................................................2-1-12
(1) Single component developing system.............................................................................................2-1-17
2-1-5 Transfer section ....................................................................................................................................2-1-18
2-2-1 Electrical parts layout..............................................................................................................................2-2-1
2-3-1 AC power source PWB ...........................................................................................................................2-3-1
2-3-2 DC power source PWB...........................................................................................................................2-3-5
2-3-3 Main PWB.............................................................................................................................................2-3-10
2-3-12 DP main PWB.......................................................................................................................................2-3-56
2-4 Appendixes
Maintenance parts list.............................................................................................................................2-4-1
Parts kits ...............................................................................................................................................2-4-10
Space required................................1480 mm (W) x 811 (D) mm
1/4" (W) x 31 15/16" (D)
58
Power source..................................120 V AC, 60 Hz, 16.0 A
220 - 240 V AC, 50/60 Hz, 9.5 A
Power consumption ........................ 1920 W
Options ...........................................Side feeder, Large size side feeder, Document finisher, Centerfold unit, Multi job tray,
Punch unit, Key counter, Printer kit, Scanner kit, Security kit and Output tray
Document processor
Original feed system .......................Automatic feed
Scanning system ............................Contact Image Sensor (CIS)
Supported original types ................. Sheets
Original weights ..............................45 - 160 g/m
2
Original sizes ..................................A3 - A5R, folio/11" x 17" - 5 1/2" x 8 1/2"
Loading capacity.............................Standard paper (80 g/m2), colored paper or recycled paper: 200 sheets
(30 sheets in mixed size originals mode)
Coated paper: 1 sheet
High quality paper (50 g/m2): 200 sheets
High quality paper (110 g/m2): 145 sheets
Power source..................................Supplied via machine
NOTE: These specifications are subject to change without notice.
1-1-2
1-1-2 Parts names
(1) Body
2KN/2KP
13
14
12
3
15
16
17
19
18
20
21
8
10
9
5
4
6
7
Figure 1-1-1
1. Operation panel
2. Operation panel lock lever
3. Document processor (DP)
4. Cassette 1
5. Cassette 2
6. Cassette 3
7. Cassette 4
8. MP tray (multi-purpose tray)
9. Paper width guides
10. MP tray extension
11. Right cover
12
11
12. Handles
13. Main power switch
14. Main power switch cover
15. Document processor bottom cover
16. Original size indicator plates
17. Platen
18. Front cover
19. Output tray (option)
20. Handles
21. Power cord
1-1-3
2KN/2KP
26
25
2223
2423
32
33
34
35
27
28
29
3031
37
36
22. Original table
23. Original width guides
24. Cleaning cloth compartment
25. Original loaded Indicator
26. Document processor top cover
27. Ejection guide
28. Document processor angle adjustment lever
29. Original eject table
30. Toner container
31. Toner container release lever
38
39
41
40
Figure 1-1-2
32. Paper conveyor
33. Knob A1
34. Lever A2
35. Knob A3
36. Duplex unit
37. Deck conveying unit
38. Paper width guides
39. Paper width adjusting tab
40. Paper length guide
41. Paper length adjusting tab
1-1-4
(2) Operation panel
21356789 1011121319
4141816201715
2KN/2KP
Figure 1-1-3
1. Brightness adjustment dial
2. Copy key/indicator
3. Printer key/indicator
4. Scann key/indicator
5. Document management key/indicator
6. Print management key/indicator
7. Repeat copy key/indicator
8. Job build key/indicator
9. Mixed size originals key/indicator
10. System menu/counter key
11. Logout key
12. Interrupt key/indicator
13. Energy saver key/indicator
14. Touch panel
15. Numeric keys
16. Reset key
17. Stop/clear key
18. Start key/indicator
19. Power key/indicator
20. Main power indicator
1-1-5
2KN/2KP
1-1-3 Cross section view
1-1-6
1. Paper feed section
2. Main charging section
3. Optical section
4. Drum section
5. Developing section
6. Transfer section
Light path
Paper and original path
Figure 1-1-4
7. Cleaning section
8. PTC section
9. Fuser section
10. Feedshift and eject section
11. Duplex section
12. Document processor
1-2Installation
1-2-1Installation environment
1. Temperature: 10 - 32.5 °C/50 - 90.5 °F
2. Humidity: 15 - 80%RH
3. Power supply: 120 V AC, 16.0 A
220 - 240 V AC, 9.5 A
4. Power source frequency: 50 Hz
5. Installation location
Avoid direct sunlight or bright lighting. Ensure that the photoconductor will not be exposed to direct sunlight or
other strong light when removing paper jams.
Avoid locations subject to high temperature and high humidity or low temperature and low humidity; an abrupt
change in the environmental temperature; and cool or hot, direct air.
Avoid places subject to dust and vibrations.
Choose a surface capable of supporting the weight of the machine.
Place the machine on a level surface (maximum allowance inclination: 1
Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases and chlorine-based organic solvents.
Select a well-ventilated location.
6. Allow sufficient access for proper operation and maintenance of the machine.
Machine front: 1000 mm/39
Machine right: 700 mm/27 9/16" Machine left: 600 mm/23 5/8"