Ricoh MP-1600L2 Service manual
Model K-C3.5L
Machine Code:
B244/B276/B277/B268/B269
Field Service Manual
3 December, 2010
Safety Notices
Important Safety Notices
Prevention of Physical Injury
1. Before disassembling or assembling parts of the copier and peripherals, make sure that the power
cord is unplugged.
2. The wall outlet should be near the copier and easily accessible.
3. Note that some components of the copier and the paper tray unit are supplied with electrical voltage
even if the main power switch is turned off.
4. If a job has started before the copier completes the warm-up or initializing period, keep hands away
from the mechanical and electrical components because the starts making copies as soon as the warmup period is completed.
5. The inside and the metal parts of the fusing unit become extremely hot while the copier is operating.
Be careful to avoid touching those components with your bare hands.
Health Safety Conditions
Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it may cause
temporary eye discomfort. Try to remove with eye drops or flush with water as first aid. If unsuccessful, get
medical attention.
Observance of Electrical Safety Standards
The copier 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. Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an
open flame.
2. Dispose of used toner, developer, and organic photoconductors in accordance with local regulations.
(These are non-toxic supplies.)
3. Dispose of replaced parts in accordance with local regulations.
1
Laser Safety
The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical units
in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite
equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser
chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and
laser subsystems to the factory or service depot when replacement of the optical subsystem is required.
of controls, or adjustment, or performance of procedures other than those specified in this manual
• Use
may result in hazardous radiation exposure.
WARNING FOR LASER UNIT
WARNING: Turn off the main switch before attempting any of the procedures in the Laser Unit section.
Laser beams can seriously damage your eyes.
CAUTION MARKING:
2
Symbols and Abbreviations
This
manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations are
as follows:
See or Refer to
Clip ring
Screw
Connector
SEF Short Edge Feed
LEF Long Edge Feed
3
TABLE OF CONTENTS
Safety Notices.....................................................................................................................................................1
Important Safety Notices...........................................................................................................................1
Laser Safety.....................................................................................................................................................
Symbols and Abbreviations...............................................................................................................................3
1. Product Information
Specifications....................................................................................................................................................11
Machine Configuration....................................................................................................................................
Overview..........................................................................................................................................................14
Component Layout.......................................................................................................................................14
Paper Path....................................................................................................................................................16
Drive Layout..................................................................................................................................................17
12
2. Installation
Installation Requirements.................................................................................................................................19
Environment..................................................................................................................................................19
Machine Level..............................................................................................................................................20
Minimum Space Requirements...................................................................................................................20
Power Requirements....................................................................................................................................21
Copier Installation............................................................................................................................................22
Power Sockets for Peripherals....................................................................................................................22
2
Accessory Check..........................................................................................................................................
Installation Procedure..................................................................................................................................23
Platen Cover Installation..................................................................................................................................28
Accessory Check..........................................................................................................................................28
Installation Procedure..................................................................................................................................28
ARDF Installation..............................................................................................................................................29
Accessory Check..........................................................................................................................................29
Installation Procedure..................................................................................................................................30
ADF Installation................................................................................................................................................33
Accessory Check..........................................................................................................................................33
Installation Procedure..................................................................................................................................34
Two-tray Paper Tray Unit Installation.............................................................................................................37
Accessory Check..........................................................................................................................................37
Installation Procedure..................................................................................................................................37
4
22
One-tray Paper Tray Unit Installation.............................................................................................................42
Accessory Check..........................................................................................................................................42
Installation Procedure..................................................................................................................................42
One-Bin Tray Installation.................................................................................................................................46
Accessory Check..........................................................................................................................................46
Installation Procedure..................................................................................................................................46
Anti-condensation Heater Installation............................................................................................................49
Tray Heaters.....................................................................................................................................................50
Upper Tray Heater.......................................................................................................................................50
Lower Tray Heater (Two-tray Model Only)...............................................................................................52
Tray Heaters For The Optional Paper Feed Units.....................................................................................53
Key Counter Installation...................................................................................................................................57
Optional Counter Interface Unit Type A (B870-11).....................................................................................60
Accessory Check..........................................................................................................................................60
Installation Procedure..................................................................................................................................60
DDST Unit Type F (B865)................................................................................................................................62
Accessory Check..........................................................................................................................................62
Installing Expansion Component................................................................................................................62
Network Interface Board (D564)...................................................................................................................64
Component Check.......................................................................................................................................64
Installing Expansion Component................................................................................................................64
3. Preventive Maintenance
PM Tables.........................................................................................................................................................69
How to Reset the PM Counter.........................................................................................................................70
4. Replacement and Adjustment
General Cautions.............................................................................................................................................73
PCU (Photoconductor Unit).........................................................................................................................73
Transfer Roller..............................................................................................................................................73
Scanner Unit.................................................................................................................................................73
Laser Unit......................................................................................................................................................74
Fusing Unit....................................................................................................................................................74
Paper Feed...................................................................................................................................................74
Static Electricity............................................................................................................................................74
5
Special Tools and Lubricants...........................................................................................................................75
Exterior Covers & Operation Panel................................................................................................................76
Rear Cover...................................................................................................................................................76
Rear Lower Cover (Two-tray Models Only)..............................................................................................77
Copy Tray.....................................................................................................................................................77
Upper Covers...............................................................................................................................................78
Left Cover......................................................................................................................................................79
Front Cover...................................................................................................................................................79
Front Right Cover.........................................................................................................................................80
Right Rear Cover..........................................................................................................................................80
Right Door (Duplex Unit (B244/B269/B277)).......................................................................................81
By-pass Tray.................................................................................................................................................82
Left Lower Cover (Two-tray Models Only)................................................................................................83
Right Lower Cover (Two-tray Models Only).............................................................................................83
Platen Cover Sensor....................................................................................................................................84
Scanner Unit.....................................................................................................................................................85
Exposure Glass/DF Exposure Glass .........................................................................................................85
Lens Block.....................................................................................................................................................86
Lamp Stabilizer Board And Exposure Lamp..............................................................................................87
Original Width/Length Sensor...................................................................................................................87
Scanner Motor.............................................................................................................................................89
Scanner Home Position Sensor...................................................................................................................90
Adjusting Scanner Positions........................................................................................................................90
Laser Unit..........................................................................................................................................................95
Location of Caution Decal...........................................................................................................................95
Toner Shield Glass.......................................................................................................................................96
Laser Unit......................................................................................................................................................96
LD Unit...........................................................................................................................................................97
Polygonal Mirror Motor..............................................................................................................................98
Laser Unit Alignment Adjustment................................................................................................................98
PCU Section...................................................................................................................................................101
PCU.............................................................................................................................................................101
Pick-off Pawls and Toner Density Sensor.................................................................................................102
6
OPC Drum..................................................................................................................................................103
Charge Roller and Cleaning Brush..........................................................................................................104
Cleaning Blade..........................................................................................................................................104
Developer..................................................................................................................................................105
After Replacement or Adjustment.............................................................................................................106
Toner Supply Motor......................................................................................................................................107
Paper Feed Section........................................................................................................................................108
Paper Feed Roller .....................................................................................................................................108
Friction Pad................................................................................................................................................109
Paper End Sensor......................................................................................................................................109
Exit Sensor..................................................................................................................................................110
By-Pass Feed Roller and Paper End Sensor............................................................................................112
Registration Roller......................................................................................................................................113
By-Pass Paper Size Switch........................................................................................................................114
Registration Clutch ....................................................................................................................................115
Registration Sensor....................................................................................................................................115
Upper Paper Feed Clutch and By-Pass Feed Clutch..............................................................................116
Relay Clutch...............................................................................................................................................117
Relay Sensor..............................................................................................................................................117
Lower Paper Feed Clutch (Two-tray Models Only)................................................................................118
Vertical Transport Sensor (Two-tray Models Only)................................................................................118
Paper Size Switch......................................................................................................................................119
Image Transfer...............................................................................................................................................120
Image Transfer Roller................................................................................................................................120
Image Density Sensor...............................................................................................................................121
Fusing..............................................................................................................................................................122
Fusing Unit..................................................................................................................................................122
Thermistor...................................................................................................................................................122
Fusing Lamps..............................................................................................................................................123
Hot Roller Stripper Pawls..........................................................................................................................124
Hot Roller...................................................................................................................................................124
Thermostat..................................................................................................................................................125
Pressure Roller and Bushings....................................................................................................................125
7
NIP Band Width Adjustment.....................................................................................................................126
Cleaning Roller..........................................................................................................................................127
Duplex Unit (Duplex Models B244/B269/B277 Only)..........................................................................128
Duplex Exit Sensor....................................................................................................................................128
Duplex Entrance Sensor............................................................................................................................129
Duplex Inverter Sensor..............................................................................................................................130
Duplex Transport Motor...........................................................................................................................131
Duplex Inverter Motor...............................................................................................................................131
Duplex Control Board...............................................................................................................................132
Other Replacements......................................................................................................................................133
Quenching Lamp.......................................................................................................................................133
High-Voltage Power Supply Board.........................................................................................................133
BICU (Base-Engine Image Control Unit).................................................................................................134
Main Motor...............................................................................................................................................135
Rear Exhaust Fan (B244/B269/B277 Only).......................................................................................135
Left Exhaust Fan.........................................................................................................................................136
PSU (Power Supply Unit)..........................................................................................................................137
Gearbox.....................................................................................................................................................138
Copy Adjustments Printing/Scanning..........................................................................................................141
Printing........................................................................................................................................................141
Scanning....................................................................................................................................................143
ADF Image Adjustment.............................................................................................................................145
5. System Maintenance
Service Program Mode.................................................................................................................................147
How to Enter the SP Mode.......................................................................................................................147
SP Mode Tables.............................................................................................................................................149
Using SP Modes.............................................................................................................................................150
Adjusting Registration and Magnification...............................................................................................150
ID Sensor Error Analysis (SP 2221).........................................................................................................151
Display APS Data (SP 4301 1)................................................................................................................151
Memory Clear...........................................................................................................................................153
Input Check (SP 5803).............................................................................................................................155
Output Check (SP 5804)..........................................................................................................................158
8
Serial Number Input (SP 5811)...............................................................................................................160
NVRAM Data Upload/Download (SP 5824/5825)...........................................................................161
Test Pattern Print (SP 5902 1)..................................................................................................................163
Paper Jam Counters (SP 7504)...............................................................................................................165
SMC Print (SP 5990)................................................................................................................................166
Original Jam History Display (SP 7508).................................................................................................167
ADF APS Sensor Output Display (SP 6901)...........................................................................................168
Firmware Update Procedure .......................................................................................................................170
Engine (BICU) Firmware Update Procedure...........................................................................................170
GDI (Printer Scanner) Update Procedure................................................................................................171
6. Troubleshooting
Service Call Conditions.................................................................................................................................177
Summary....................................................................................................................................................177
SC Code Descriptions...............................................................................................................................178
Electrical Component Defects.......................................................................................................................193
Sensors.......................................................................................................................................................193
Switches.....................................................................................................................................................195
Blown Fuse Conditions..................................................................................................................................197
LED Display....................................................................................................................................................198
BICU...........................................................................................................................................................198
7. Energy Saving
Energy Save...................................................................................................................................................199
Energy Saver Modes................................................................................................................................199
Paper Save.....................................................................................................................................................203
Effectiveness of Duplex/Combine Function............................................................................................203
9
10
1. Product Information
1
Specifications
See "Appendices" for the following information:
General Specifications
•
• Supported Paper Sizes
• Option Equipment
11
1. Product Information
1
Machine Configuration
12
Copier
1
Machine Configuration
Unit/Component Machine Code Diagram
Copier (1-tray non-duplex model) B268/B276 [D]
Copier (2-tray with duplex) B244/B269/B277 [C] + [G]
Platen cover (optional) B406 [B]
ADF (optional) B813 [A]
ARDF (optional) B814 [A]
Paper tray unit–1 tray (optional) B385 [F]
Paper tray unit–2 trays (optional) B384 [E]
1-bin tray (optional) B621 [H]
GDI
• The optional GDI controller comes with a dedicated controller box and printer/scanner panel.
GDI controller (standard for B244 or optional for
B268/B269B276/B277)
B865 [I]
13
1. Product Information
1
Overview
Component Layout
14
• The above illustration is the B244/B269/B277 model.
•
B268/B276: No duplex unit, one paper tray
Overview
1
1. 2nd Mirror
2. Exposure Lamp
3. 1st Mirror
4. Exposure Glass
5. Original Width Sensors
6. Original Length Sensors
7. Lens Block
8. SBU
9. Exit Sensor
10. Scanner Motor
11. Inverter Roller
12. Duplex Inverter Sensor
13. Duplex Entrance Sensor
14. Hot Roller
15. Upper Transport Roller
16. Pressure Roller
17. OPC Drum
21. Registration Roller
22. Registration Sensor
23. By-pass Tray
24. Lower Transport Roller
25. Upper Relay Roller
26. Relay Sensor
27. Lower Relay Roller
28. Vertical Transport Sensor
29. Paper Feed Roller
30. Paper End Sensor
31. Bottom Plate
32. PCU
33. Development Roller
34. WTL
35. Polygon Mirror Motor
36. Laser Unit
37. Toner Supply Bottle Holder
18. Middle Transport Roller
19. Duplex Exit Sensor
20. Image Density Sensor
38. Exit Roller
39. 3rd Mirror
40. Scanner HP Sensor
15
1. Product Information
1
Paper Path
The B244/B269/B277 model has a duplex unit mounted on the right side of the machine.
All models have a by-pass tray.
16
Drive Layout
1
Overview
1. Scanner Motor
2. Main Motor
3. Hot Roller
4. OPC Drum
5. Development Roller
6. Relay Clutch
7. Lower Paper Feed Clutch
8. By-pass Feed Clutch
9. Upper Paper Feed Clutch
10. Registration Clutch
17
1. Product Information
1
18
2. Installation
2
Installation Requirements
• Before installing options, please do the following:
• If there is a printer option in the machine, print out all data in the printer buffer.
• Turn off the main switch and disconnect the power cord, the telephone line, and the network cable.
Environment
–Temperature and Humidity Chart–
• Temperature Range: 10°C to 32°C (50°F to 89.6°F)
• Humidity Range: 15% to 80% RH
• Ambient Illumination: Less than 1,500 lux (do not expose to direct sunlight)
• Ventilation: 3 times/hr/person or more
• Ambient Dust: Less than 0.075 mg/m3 (2.0 x 10-6 oz/yd3)
19
2. Installation
2
• Avoid areas exposed to sudden temperature changes:
1) Areas directly exposed to cool air from an air conditioner.
2) Areas directly exposed to heat from a heater.
• Do not place the machine in areas where it can get exposed to corrosive gases.
• Do not install the machine at any location over 2,000 m (6,560 ft.) above sea level.
• Place the machine on a strong and level base. (Inclination on any side should be no more than 5
mm.)
• Do not place the machine where it is subjected to strong vibrations.
Machine Level
Front to back: Within 5 mm (0.2") of level
Right to left: Within 5 mm (0.2") of level
Minimum Space Requirements
Place the copier near the power source, providing clearance as shown:
A (front): 750 mm (30")
B (left): 150 mm (6")
C (rear): 50 mm (2")
D (right): 250 mm (10")
20
Installation Requirements
2
The recommended 750 mm front space is sufficient to allow the paper tray to be pulled out. Additional
front space is required to allow operators to stand at the front of the machine.
Power Requirements
• Make
• Avoid multi-wiring.
• Be sure to ground the machine
Input voltage:
Taiwan:
Europe, Asia, China: 220 – 240 V, 50/60 Hz, 7 A
sure that the wall outlet is near the machine and easily accessible. After. completing installation,
make sure the plug fits firmly into the outlet.
110 – 120 V, 60 Hz, 12 A
21
2. Installation
2
Copier Installation
Power Sockets for Peripherals
• Make sure to plug the cables into the correct sockets.
[A]: Socket for ADF/ARDF (Rated voltage output max. DC24 V)
[B]: Socket for paper tray unit (Rated voltage output max. DC24 V)
Accessory Check
Check that you have the accessories in this list.
Basic Machines
No. Description Q’ty
1 NECR-English /Multi-language 1
2 EU Safety Sheet 1
3 Laser Decal 1
22
No. Description Q’ty
2
4 Model Name Plate 1
GDI Machines
No. Description Q’ty
1 NECR-English /Multi-language 1
2 Laser Decal 1
3 Model Name Plate 1
4 Operating Instructions 1
5 General Setting Guide 1
6 Copy Reference 1
7 Printer/Scanner Reference 1
Copier Installation
8 Network Reference 1
9 Quick Guide Copy Edition 1
10 Quick Guide Printer/Scanner Edition 1
11 Manual for this machine 1
12 Safety Information 1
Installation Procedure
• Unplug the machine power cord before starting the following procedure.
23
2. Installation
2
1. Remove filament tape and other padding.
2. Open the front door and remove the toner bottle holder [A]
24
3. Open the right door [B], and remove the PCU (photo-conductor unit) [C].
2
Copier Installation
4. Separate the PCU into the upper part and the lower part ( x 5).
5.
Put a sheet of paper on a level surface and place the upper part on it.
• This prevents foreign material from getting on the sleeve rollers
25
2. Installation
2
6. Distribute a pack of developer [D] to all openings equally.
• Do
not spill the developer on the gears [E]. If you have spilled it, remove the developer by using
a magnet or magnetized screwdriver.
• Do not turn the gear [E] too much. The developer may spill.
7. Reassemble the PCU and reinstall it.
8. Shake
9. Remove the bottle cap [G] and install the bottle on the holder. (Do not touch the inner cap [H].)
10. Set the holder (with the toner bottle) in the machine.
the toner bottle [F] several times. (Do not remove the bottle cap [G] before you shake the bottle.)
26
Copier Installation
2
11. Pull out the paper tray [I] and turn the paper size dial to the appropriate size. Adjust the positions of
the end and side guides.
• To move the side guides, release the green lock on the rear side guide.
Install the optional ARDF, ADF, or platen cover.
12.
13. Plug in the main power cord and turn on the main switch.
14. Activate the SP mode and execute "Devlpr Initialize" (SP 2214 1).
15. Wait until the message "Completed" shows (about 45 seconds).
16. Activate the User Tools and select the menu "Language."
17. Specify a language. This language is used for the operation panel.
18. Load the paper in the paper tray and make a full size copy, and make sure the side-to-side and
leading edge registrations are correct.
27
2. Installation
2
Platen Cover Installation
Accessory Check
Check that you have the accessories indicated below.
No. Description Q’ty
1 Stepped Screw 2
Installation Procedure
• Unplug the machine power cord before starting the following procedure.
Install the platen cover ( x 2).
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