Ricoh PT3 Quick start guide

Model PT3
Machine Code: C275
Field Service Manual
2 November, 2009

Important Safety Notices
Responsibilities of the Customer Engineer
Customer Engineer
Maintenance shall be done only by trained customer engineers who have completed service training for
the machine and all optional devices designed for use with the machine.
Reference Material for Maintenance
• Maintenance shall be done using the special tools and procedures prescribed for maintenance of the
machine described in the reference materials (service manuals, technical bulletins, operating
instructions, and safety guidelines for customer engineers).
• In regard to other safety issues not described in this document, all customer engineers shall strictly
obey procedures and recommendations described the "CE Safety Guide".
• Use only consumable supplies and replacement parts designed for use of the machine.
Before Installation, Maintenance
Shipping and Moving the Machine
• Work carefully when lifting or moving the machine. If the machine is heavy, two or more customer
engineers may be required to prevent injuries (muscle strains, spinal injuries, etc.) or damage to the
machine if it is dropped or tipped over.
• Personnel moving or working around the machine should always wear proper clothing and footwear.
Never wear loose fitting clothing or accessories (neckties, loose sweaters, bracelets, etc.) or casual
footwear (slippers, sandals, etc.) when lifting or moving the machine.
• Always unplug the power cord from the power source before you move the product. Before you move
the product, arrange the power cord so it will not fall under the product.
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Power
• Always disconnect the power plug before doing any maintenance procedure. After switching off the
machine, power is still supplied to the main machine and other devices. To prevent electrical shock,
switch the machine off, wait for a few seconds, then unplug the machine from the power source.
•Before you do any checks or adjustments after turning the machine off, work carefully to avoid injury.
After removing covers or opening the machine to do checks or adjustments, never touch electrical
components or moving parts (gears, timing belts, etc.).
• After turning the machine on with any cover removed, keep your hands away from electrical
components and moving parts. Never touch the cover of the fusing unit, gears, timing belts, etc.
Installation, Disassembly and Adjustments
• After installation, maintenance, or adjustment, always check the operation of the machine to make
sure that it is operating normally. This ensures that all shipping materials, protective materials, wires
and tags, metal brackets, etc., removed for installation, have been removed and that no tools remain
inside the machine. This also ensures that all release interlock switches have been restored to normal
operation.
• Never use your fingers to check moving parts causing spurious noise. Never use your fingers to
lubricate moving parts while the machine is operating.
Special Tools
• Use only standard tools approved for machine maintenance.
• For special adjustments, use only the special tools and lubricants described in the service manual.
Using tools incorrectly, or using tools that could damage parts, could damage the machine or cause
injuries.
During Maintenance
General
• Before you begin a maintenance procedure:
• 1) Switch the machine off
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• 2) Disconnect the power plug from the power source.
Safety Devices
• Never remove any safety device unless it requires replacement. Always replace safety devices
immediately.
• Never do any procedure that defeats the function of any safety device. Modification or removal of a
safety device (fuse, switch, etc.) could lead to a fire and personal injury. Always test the operation of
the machine to ensure that it is operating normally and safely after removal and replacement of any
safety device.
• For replacements use only the correct fuses or circuit breakers rated for use with the machine. Using
replacement devices not designed for use with the machine could lead to a fire and personal injuries.
Organic Cleaners
• During preventive maintenance, never use any organic cleaners (alcohol, etc.) other than those
described in the service manual.
• Make sure the room is well ventilated before using any organic cleaner. Use organic solvents in small
amounts to avoid breathing the fumes and becoming nauseous.
• Switch the machine off, unplug it, and allow it to cool before doing preventive maintenance. To avoid
fire or explosion, never use an organic cleaner near any part that generates heat.
• Wash your hands thoroughly after cleaning parts with an organic cleaner to contamination of food,
drinks, etc. which could cause illness.
• Clean the floor completely after accidental spillage of silicone oil or other materials to prevent slippery
surfaces that could cause accidents leading to hand or leg injuries. Use dry rags to soak up spills.
Power Plug and Power Cord
• Before serving the machine (especially when responding to a service call), always make sure that the
power plug has been inserted completely into the power source. A partially inserted plug could lead
to heat generation (due to a power surge caused by high resistance) and cause a fire or other
problems.
• Always check the power plug and make sure that it is free of dust and lint. Clean it if necessary. A
dirty plug can generate heat which could cause a fire.
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• Inspect the length of the power cord for cuts or other damage. Replace the power cord if necessary.
A frayed or otherwise damaged power cord can cause a short circuit which could lead to a fire or
personal injury from electrical shock.
• Check the length of the power cord between the machine and power supply. Make sure the power
cord is not coiled or wrapped around any object such as a table leg. Coiling the power cord can
cause excessive heat to build up and could cause a fire.
• Make sure that the area around the power source is free of obstacles so the power cord can be
removed quickly in case of an emergency.
• Make sure that the power cord is grounded (earthed) at the power source with the ground wire on
the plug.
• Connect the power cord directly into the power source. Never use an extension cord.
• When you disconnect the power plug from the power source, always pull on the plug, not the cable.
After Installation, Servicing
Points to Confirm with Operators
At the end of installation or a service call, instruct the user about use of the machine. Emphasize the following
points.
• Show operators how to remove jammed paper and troubleshoot other minor problems by following
the procedures described in the operating instructions.
• Point out the parts inside the machine that they should never touch or attempt to remove.
• Confirm that operators know how to store and dispose of consumables.
• Make sure that all operators have access to an operating instruction manual for the machine.
• Confirm that operators have read and understand all the safety instructions described in the operating
instructions.
• Demonstrate how to turn off the power and disconnect the power plug (by pulling the plug, not the
cord) if any of the following events occur: 1) something has spilled into the product, 2) service or
repair of the product is necessary, 3) the product cover has been damaged.
• Caution operators about removing paper fasteners around the machine. They should never allow
paper clips, staples, or any other small metallic objects to fall into the machine.
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Safety Instructions for this Machine
Prevention of Physical Injury
1. Before disassembling or assembling parts of the machine and peripherals, make sure that the machine
and peripheral power cords are unplugged.
2. The plug should be near the machine and easily accessible.
3. If any adjustment or operation check has to be made with exterior covers off or open while the main
switch is turned on, keep hands away from electrified or mechanically driven components.
4. The inside and the metal parts of the fusing unit become extremely hot while the machine is operating.
Be careful to avoid touching those components with your bare hands.
5. To prevent a fire or explosion, keep the machine away from flammable liquids, gases, and aerosols.
Health Safety Conditions
1. If you get ink in your eyes by accident, try to remove it with eye drops or flush with water as first aid.
If unsuccessful, get medical attention.
2. If you ingest ink by accident, induce vomiting by sticking a finger down your throat or by giving soapy
or strong salty water to drink.
Observance of Electrical Safety Standards
1. The machine and its peripherals must be installed and maintained by a customer service representative
who has completed the training course on those models.
Safety and Ecological Notes for Disposal
1. Dispose of replaced parts in accordance with local regulations.
2. Used ink and masters should be disposed of in an environmentally safe manner and in accordance
with local regulations.
Symbols
This manual uses several symbols. The meanings of those symbols are as follows:
See or Refer to
Clip ring
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E-ring
Screw
Connector
Clamp
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TABLE OF CONTENTS
Important Safety Notices...................................................................................................................................1
Responsibilities of the Customer Engineer....................................................................................................1
Before Installation, Maintenance..................................................................................................................1
During Maintenance......................................................................................................................................2
After Installation, Servicing............................................................................................................................4
Safety Instructions for this Machine...............................................................................................................5
Symbols...........................................................................................................................................................5
1. Product Information
Specifications....................................................................................................................................................11
Guidance for Those Who are Familiar with Predecessor Products..............................................................12
Overview..........................................................................................................................................................14
Mechanical Component Layout.................................................................................................................14
Electrical Component Layout......................................................................................................................16
Drive Layout..................................................................................................................................................20
2. Installation
Installation Requirements.................................................................................................................................21
Optimum Environmental Condition............................................................................................................21
Environments to Avoid.................................................................................................................................21
Power Connection.......................................................................................................................................21
Minimum Space Requirements...................................................................................................................21
Dimensions...................................................................................................................................................22
Main Body and Peripherals........................................................................................................................23
Power Sockets for Peripherals....................................................................................................................24
Installation Procedure......................................................................................................................................25
Main Body....................................................................................................................................................25
Color Drum (Option)...................................................................................................................................35
ADF (Option)................................................................................................................................................36
Platen Cover (Option).................................................................................................................................39
Tape Dispenser (Option).............................................................................................................................40
Printer Unit VC-20 (Option)........................................................................................................................44
Printer Unit Type 4545A (Option)..............................................................................................................46
3. Preventive Maintenance
Maintenance Tables........................................................................................................................................51
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4. Replacement and Adjustment
General Caution...............................................................................................................................................53
Special Tools....................................................................................................................................................54
Image Adjustment.............................................................................................................................................55
Overview......................................................................................................................................................55
SP6-10: Master Writing Speed..................................................................................................................55
SP6-21: Paper Regist Position.....................................................................................................................56
SP6-5: Scanning Speed – Platen and SP6-6: Scanning Speed – ADF mode.......................................56
SP6-3: Scanning Start Position – Platen and SP6-4: Scanning Start Position - ADF..............................56
SP6-1: Main Scan Position – Platen and SP6-2: Main Scan Position - ADF..........................................56
Covers...............................................................................................................................................................58
Front Cover and Front Door........................................................................................................................58
Operation Panel...........................................................................................................................................59
Rear Cover...................................................................................................................................................59
Upper Covers...............................................................................................................................................60
Boards...............................................................................................................................................................61
MPU..............................................................................................................................................................61
PSU................................................................................................................................................................61
Scanner.............................................................................................................................................................63
Exposure Glass, DF Exposure Glass and Scales......................................................................................63
Lens Block.....................................................................................................................................................64
Exposure Lamp and Lamp Stabilizer Board..............................................................................................65
Scanner Motor.............................................................................................................................................66
Scanner Home Position Sensor...................................................................................................................67
Platen Cover Sensor....................................................................................................................................68
Adjusting the Scanner Position....................................................................................................................68
Master Feed......................................................................................................................................................73
Master Making Unit.....................................................................................................................................73
Master Making Unit Set Switches...............................................................................................................73
Thermal Head..............................................................................................................................................75
Master Set Cover Sensor............................................................................................................................77
Master End Sensor.......................................................................................................................................77
Cutter Unit.....................................................................................................................................................78
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Thermal Head Voltage Adjustment.............................................................................................................79
Master End Sensor Adjustment...................................................................................................................80
Master Eject......................................................................................................................................................82
Master Eject Unit..........................................................................................................................................82
Master Eject Rollers.....................................................................................................................................83
Master Eject Motor and Pressure Plate Motor..........................................................................................83
Drum Master Sensor, Master Eject Sensor and Eject Box Set Sensor.....................................................84
Pressure Plate HP Sensor and Pressure Plate Limit Sensor........................................................................85
Air Knife Fan Motor.....................................................................................................................................85
Master Eject Position Sensor.......................................................................................................................86
Master Clamper Opening Unit...................................................................................................................86
Paper Feed........................................................................................................................................................88
Pick-up Roller, Paper Feed Roller and Friction Pad...................................................................................88
Paper Table Lower Limit Sensor..................................................................................................................89
Paper Height Sensor 1 and 2.....................................................................................................................89
Paper End Sensor.........................................................................................................................................90
Paper Table Motor.......................................................................................................................................91
Paper Feed Clutch.......................................................................................................................................92
Paper Separation Pressure Adjustment......................................................................................................92
Printing...............................................................................................................................................................94
Press Roller...................................................................................................................................................94
Registration Sensor......................................................................................................................................95
Feed Start Timing Sensor.............................................................................................................................95
2nd Feed Timing Sensor..............................................................................................................................96
Registration Motor ......................................................................................................................................96
Registration Roller........................................................................................................................................97
Press Roller Release Solenoids...................................................................................................................99
Press Roller Release Lever Adjustment.....................................................................................................100
Printing Pressure Adjustment.....................................................................................................................101
Drum...............................................................................................................................................................103
Preparation................................................................................................................................................103
Cloth Screen..............................................................................................................................................103
Clamper and Metal Screen......................................................................................................................106
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Ink Pump Unit.............................................................................................................................................108
Ink Roller Unit and Ink Roller One-Way Clutch......................................................................................109
Doctor Roller Gap Adjustment.................................................................................................................110
Ink Detection Adjustment .........................................................................................................................111
Paper Delivery................................................................................................................................................114
Paper Delivery Unit...................................................................................................................................114
Delivery Belt, Paper Exit Sensor, Vacuum Fan Motor and Paper Delivery Unit Bushings...................115
Paper Delivery Motor................................................................................................................................117
Exit Pawl Adjustment.................................................................................................................................117
Main Drive ....................................................................................................................................................121
Registration Motor.....................................................................................................................................121
Main Motor...............................................................................................................................................122
Main Drive Timing Belt Adjustment..........................................................................................................124
Main Motor Pulley Position......................................................................................................................124
5. System Maintenance
Service Program Mode.................................................................................................................................127
6. Troubleshooting
Troubleshooting Guide..................................................................................................................................129
7. Energy Saving
Energy Save...................................................................................................................................................131
Energy Saver Modes................................................................................................................................131
Paper Save.....................................................................................................................................................133
Effectiveness of the Combine Function.....................................................................................................133
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1. Product Information
Specifications
See "Appendices" for the "General Specifications":
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Guidance for Those Who are Familiar with
Predecessor Products
Machine C275 is a successor model to Machine C267/C271. If you have experience with the
predecessor products, the following information will be of help when you read this manual.
Different Points from Predecessor Products
Item C267/C271 C275
Paper Delivery
Motor
No Yes
Drum HP Lock
Mechanism
No Yes
Optional Printer Unit
Type 4545A
No Yes
First Print Time 33 seconds (A4 )
When setting an original on the
exposure glass
34 seconds (A4 )
When setting an original on the
exposure glass
Depth 676 mm 681 mm
Power Source 120 V, 60 Hz, 1.7 A
220 V – 240 V, 50 – 60 Hz, 1.1 A
120 V, 60 Hz, 2.2 A
220 V – 240 V, 50 – 60 Hz, 1.2 A
Power Consumption
120V, 60Hz:
Less than 150W (Printing)
Less than 150W (Master making)
220V-240V, 50-60Hz:
Less than 160W (Printing)
Less than 160W (Master making)
120V, 60Hz:
Less than 185W (Printing)
Less than 210W (Master making)
220V-240V, 50-60Hz:
Less than 185W (Printing)
Less than 210W (Master making)
1. Product Information
12
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Item C267/C271 C275
Noise Emission
Sound Power Level
Standby: 36 dB
Copying 80 cpm: 78 dB
Copying 100 cpm: 80 dB
Copying 130 cpm: 84 dB
Operating Position Sound Power Level
Standby: 20 dB
Copying 80 cpm: 63 dB
Copying 100 cpm: 70 dB
Copying 130 cpm: 72 dB
Sound Power Level
Standby: 34 dB
Copying 80 cpm: 78 dB
Copying 100 cpm: 80 dB
Copying 130 cpm: 84 dB
Operating Position Sound Power Level
Standby: 20 dB
Copying 80 cpm: 63 dB
Copying 100 cpm: 66 dB
Copying 130 cpm: 70 dB
Guidance for Those Who are Familiar with Predecessor Products
13
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Overview
Mechanical Component Layout
1. Product Information
14
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1. Tension Roller
2. Master Feed Roller
3. Platen Roller
4. Thermal Head
5. Master Roll
6. Paper Feed Roller
7. Paper Pick-up Roller
8. Paper Table
9. Registration Rollers
10. Doctor Roller
11. Press Roller
12. Ink Roller
13. Vacuum Fan Motor
14. Exit Pawl
15. Transport Belts
16. Paper Delivery Table
17. Air Knife Fan Motor
18. Master Eject Box
19. Master Eject Rollers
20. 3rd Mirror
21. 2nd Mirror
22. 1st Mirror
23. DF Exposure Glass
24. 1st Transport Roller
25. Separation Roller
26. Original Feed Belt
27. Pick-up Roller
28. 2nd Transport Roller
29. Original Exit Roller
Overview
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Electrical Component Layout
Boards
Index No. Name Function
18 LCD Displays messages for the operator
1. Product Information
16
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Index No. Name Function
19 Operation Panel
Boards
These boards control the operation panel.
21 Lamp Stabilizer This supplies power to the xenon lamp.
25 SBU Makes a video signal from the scanned original.
44 Main Processing Unit
(MPU)
Controls all machine functions both directly and through other
boards.
49 Power Supply Unit Provides dc power to the system.
Motors
Index No. Name Function
1 Scanner Motor Stepper motor drives the book scanner.
4 Master Feed Motor Feeds the master to the drum.
11 Paper Table Motor Raises and lowers the paper table.
15 Cutter Motor Cuts the master.
29 Master Eject Motor Sends used masters into the master eject box.
30 Air Knife Fan Motor Rotates the fan to provide air to separate the leading edge of
the paper from the drum.
32 Vacuum Fan Motor Provides suction so that paper is held firmly on the transport belt.
33 Paper Delivery Motor Drives the paper delivery unit.
35 Pressure Plate Motor Raises and lowers the pressure plate.
37 Clamper Motor Opens or closes the drum master clamper.
41 Main Motor Drives paper feed mechanisms and the drum.
42 Registration Motor Feeds the paper to align it with the master on the drum.
46 Original Feed Motor Stepper motor drives the book scanner.
Overview
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Solenoids
Index No. Name Function
13 Front Pressure
Release Solenoid
Releases the press roller to apply printing pressure.
39 Rear Pressure Release
Solenoid
Releases the press roller to apply printing pressure.
Switches
Index No. Name Function
9, 14 Master making unit
set switches
The machine does not work until the two set switches turn on.
12 Paper Table Lowering
Switch
Lowers the paper table.
16 Master eject unit
safety switch
Checks whether the master eject unit is properly closed.
17 Door Safety Switches Checks whether the front door is properly closed.
24 Cutter HP Switch Detects when the cutter is at the home position
28 Main Switch Turns the power on or off.
Sensors
Index No. Name Function
3 Master End Sensor Informs the CPU when the master making unit runs out of master
roll.
6 Paper Height Sensor
1
Detects when the paper table reaches the paper feed position.
7 Paper Height Sensor
2
Detects when the paper table reaches the paper feed position.
8 Paper End Sensor Informs the CPU when the paper table runs out of paper.
1. Product Information
18
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