Download lbp5000_5100-sm PDF

Titlelbp5000_5100-sm
TagsSignal (Electrical Engineering) Electronic Circuits Copyright Manufactured Goods
File Size14.2 MB
Total Pages162
Table of Contents
                            Chapter 1 PRODUCT DESCRIPTION
	1.1 Features
		1.1.1 Feature
		1.1.2 Feature
	1.2 System construction
		1.2.1 System Construction
		1.2.2 System Construction
	1.3 Product Specifications
		1.3.1 Product Specifications
		1.3.2 Product Specifications
	1.4 Name of Parts
		1.4.1 External View
		1.4.2 Cross Section View
	1.5 Using the Machine
		1.5.1 Control Panel
	1.6 Safety
		1.6.1 Safety of the Laser Light
		1.6.2 Regulations Under the Center for Devices and Radiological Health (CDRH)
		1.6.3 Handling the Laser Unit
		1.6.4 Safety of Toner
Chapter 2 TECHNICAL REFERENCE
	2.1 Functional Configuration
		2.1.1 Outline
	2.2 Basic Sequense
		2.2.1 Basic Sequence of Operation
		2.2.2 Power-On Sequence
	2.3 LASER EXPOSURE SYSTEM
		2.3.1 Overview/Configuration
			2.3.1.1 Outline
		2.3.2 Laser Control
			2.3.2.1 Outline
			2.3.2.2 Laser Emission Control
			2.3.2.3 Automatic power control (APC)
			2.3.2.4 Horizontal synchronous control
			2.3.2.5 Image Mask Control
			2.3.2.6 Fault Detection
		2.3.3 Laser Scanner Motor Control
			2.3.3.1 Outline
			2.3.3.2 Speed Control
			2.3.3.3 Phase Control
			2.3.3.4 Fault Detection
	2.4 IMAGE FORMATION SYSTEM
		2.4.1 Overview/Configuration
			2.4.1.1 Outline
			2.4.1.2 Image Formation Process
			2.4.1.3 Electrostatic latent image formation block
			2.4.1.4 Developing block
			2.4.1.5 Transfer block
			2.4.1.6 Fixing block
			2.4.1.7 Drum cleaning block
		2.4.2 High-Voltage Control
			2.4.2.1 Outline
			2.4.2.2 Outline
			2.4.2.3 Generation of the Primary Charging Bias
			2.4.2.4 Generation of the Developing Bias
			2.4.2.5 Generation of the Transfer Bias
			2.4.2.6 Generation of the Fixing Bias
			2.4.2.7 Electrostatic eliminate bias
			2.4.2.8 ETB drive roller bias
		2.4.3 Image Stabilizaton Control
			2.4.3.1 Overview of the Image Stabilization Control Mechanism
			2.4.3.2 Environment corrective control
			2.4.3.3 Image density corrective control (D-max control)
			2.4.3.4 Image halftone corrective control (D-half control)
			2.4.3.5 Image density detection control
			2.4.3.6 Overview of Color Misregistration Corrective Control
			2.4.3.7 Color misregistration detection
		2.4.4 Toner Cartridge
			2.4.4.1 Outline
			2.4.4.2 Memory Tag Control
			2.4.4.3 Detection of Toner cartridge presence/absence
			2.4.4.4 Detecting the End of Life of the Cartridge
			2.4.4.5 Detecting the Level of Toner
		2.4.5 Transfer Unit
			2.4.5.1 ETB Unit
			2.4.5.2 ETB Cleaning
	2.5 Pickup/Feeding/Delivery System
		2.5.1 Overview/Configuration
			2.5.1.1 Outline
		2.5.2 Other Control
			2.5.2.1 Outline
			2.5.2.2 Picking Up Paper from the Cassette
			2.5.2.3 Picking Up Paper from the Manual Feeder
			2.5.2.4 Moving the Print Paper
			2.5.2.5 Transport Speed Control
			2.5.2.6 Paper loop control
			2.5.2.7 Automatic release of fixing pressure mechanism
		2.5.3 Detecting Jams
			2.5.3.1 Jam Detection Outline
				2.5.3.1.1 Outline
			2.5.3.2 Delay Jams
				2.5.3.2.1 Pick-up delay jam
				2.5.3.2.2 Delivery delay jam
			2.5.3.3 Stationary Jams
				2.5.3.3.1 Pickup Stationary Jam
				2.5.3.3.2 Delivery Stationary Jam
			2.5.3.4 Other Jams
				2.5.3.4.1 Wrap Jam
				2.5.3.4.2 Start-Up Residual Paper Jam
				2.5.3.4.3 Door Open Jam
				2.5.3.4.4 Duplexing Pick-up Jam
		2.5.4 Duplex Feeding
			2.5.4.1 Outline
			2.5.4.2 Duplexing feed operation
			2.5.4.3 Duplexing Driver PCB
	2.6 FIXING UNIT SYSTEM
		2.6.1 Overview/Configuration
			2.6.1.1 Outline
		2.6.2 Various Control Mechanisms
			2.6.2.1 Fixing Temperature Control
				2.6.2.1.1 Fixing Temperature Control
				2.6.2.1.2 Fixing Temperature Control
		2.6.3 Protective Functions
			2.6.3.1 Outline
			2.6.3.2 Fault Detection
	2.7 EXTERNAL AND CONTROLS SYSTEM
		2.7.1 Power Supply
			2.7.1.1 Power Supply
				2.7.1.1.1 Low-Voltage Power Supply PCB
			2.7.1.2 Other Function
				2.7.1.2.1 Protective Functions
				2.7.1.2.2 Sleep function
				2.7.1.2.3 Connection Power Supply Detection
	2.8 ENGINE CONTROL SYSTEM
		2.8.1 Construction
			2.8.1.1 Outline
		2.8.2 DC Controller
			2.8.2.1 Outline
			2.8.2.2 Operation of Individual Blocks
			2.8.2.3 Fan/Motor Control
			2.8.2.4 Fan/Motor Control
			2.8.2.5 Main Motor Fault Detection
			2.8.2.6 Fan Motor Fault Detection
		2.8.3 Video Controller PCB
			2.8.3.1 Outline
			2.8.3.2 Overview of the Block
Chapter 3 DISASSEMBLY AND ASSEMBLY
	3.1 Before Parts Replacement
		3.1.1 Outline
	3.2 EXTERNAL AND CONTROLS SYSTEM
		3.2.1 Rear Cover
			3.2.1.1 Preparation for Removing the Rear Cover
			3.2.1.2 Removing the Rear Cover
			3.2.1.3 Removing the Rear Cover
		3.2.2 Right Cover
			3.2.2.1 Preparation for Removing the Right Cover / Right Cassette Cover
			3.2.2.2 Removing the Right Cover / Right Cassette Cover
			3.2.2.3 Removing the Right Cover/Right Cassette Cover
		3.2.3 Left Cover
			3.2.3.1 Preparation for Removing the Left Cover / Left Cassette Cover
			3.2.3.2 Removing the Left Cover / Left Cassette Cover
			3.2.3.3 The former procedure of removing the Left Cover/ Left Cassette Cover
			3.2.3.4 Removing the Left Cover/Left Cassette Cover
		3.2.4 Upper Cover
			3.2.4.1 Preparation for Removing the Upper Cover
			3.2.4.2 Removing the Upper Cover
			3.2.4.3 The former procedure of removing the Upper Cover
			3.2.4.4 Removing the Upper Cover
		3.2.5 Front Cover
			3.2.5.1 Preparation for Removing the Front Cover
			3.2.5.2 Removing the Front Cover
			3.2.5.3 The former procedure of removing the Front Cover
			3.2.5.4 Removing the Front Cover
		3.2.6 Delivery Tray
			3.2.6.1 Removing the Delivery Tray
			3.2.6.2 Removing the Delivery Tray
		3.2.7 Face-down Cover
			3.2.7.1 Preparation for Removing the Face-Down Cover
			3.2.7.2 Removing the Face-Down Cover
			3.2.7.3 The former procedure of removing the Face-Down Cover
			3.2.7.4 Removing the Face-Down Cover
		3.2.8 Main Drive Unit
			3.2.8.1 Preparation for Removing the Main Drive Assembly
			3.2.8.2 Removing the Main Drive Assembly
			3.2.8.3 The former procedure of removing the Main Drive Assembly
			3.2.8.4 Removing the Main Drive Assembly
		3.2.9 Duplexing Drive Unit
			3.2.9.1 Preparation for Removing the Duplexing Drive Assembly
			3.2.9.2 Removing the Duplexing Drive Assembly
		3.2.10 Main Motor
			3.2.10.1 Preparation for Removing the Main Motor
			3.2.10.2 Removing the Main Motor
			3.2.10.3 The former procedure of removing the Main Motor
			3.2.10.4 Removing the Main Motor
		3.2.11 DC Controller PCB
			3.2.11.1 Preparation for Removing the DC Controller PCB
			3.2.11.2 Removing the DC Controller PCB
			3.2.11.3 The former procedure of removing the DC Controller PCB
			3.2.11.4 Removing the DC Controller PCB
		3.2.12 Video Controller PCB
			3.2.12.1 Preparation for Removing the Video Controller PCB
			3.2.12.2 Removing the Video Controller PCB
			3.2.12.3 The former procedure of removing the Video Controller PCB
			3.2.12.4 Removing the Video Controller
		3.2.13 Memory Controller PCB
			3.2.13.1 Preparation for Removing the Memory Controller PCB
			3.2.13.2 Removing the Memory Controller PCB
			3.2.13.3 The former procedure of Removing the Memory Controller PCB
			3.2.13.4 Removing the Memory Controller PCB
		3.2.14 Duplexing Driver PCB
			3.2.14.1 Preparation for Removing the Duplexing Driver PCB
			3.2.14.2 Removing the Duplexing Driver PCB
		3.2.15 Low-Voltage Power Supply Assembly
			3.2.15.1 Preparation for Removing the Low-Voltage Power Supply PCB
			3.2.15.2 Removing the Low-Voltage Power Supply PCB
			3.2.15.3 The former procedure of Removing the Low- Voltage Power Supply PCB
			3.2.15.4 Removing the Low-Voltage Power Supply PCB
		3.2.16 High-voltage PCB
			3.2.16.1 Preparation for Removing the High-Voltage Power Supply PCB
			3.2.16.2 Removing the High-Voltage Power Supply PCB
			3.2.16.3 The former procedure of Removing the High- Voltage Power Supply PCB
			3.2.16.4 Removing the High-Voltage Power Supply PCB
		3.2.17 Sub High-Voltage Power Supply PCB
			3.2.17.1 Preparation for Removing the Sub High-Voltage Power Supply PCB
			3.2.17.2 Removing the Sub High-Voltage Power Supply PCB
		3.2.18 Machine Outside Environment Sensor
			3.2.18.1 The former procedure of removing the Site Environment Sensor
			3.2.18.2 Removing the Site Environment Sensor
		3.2.19 Cartridge Fan
			3.2.19.1 Preparation for Removing the Cartridge Fan
			3.2.19.2 Removing the Cartridge Fan
			3.2.19.3 The former procedure of removing Removing the Cartridge Fan
			3.2.19.4 Removing the Cartridge Fan
		3.2.20 Fixing Fan 1
			3.2.20.1 Preparation for Removing the Fixing Fan
			3.2.20.2 Removing the Fixing Fan
	3.3 LASER EXPOSURE SYSTEM
		3.3.1 Laser Scanner Unit
			3.3.1.1 Preparation for Removing the Laser Scanner Unit
			3.3.1.2 Removing the Laser Scanner Unit
			3.3.1.3 The former procedure of removing the Laser Scanner Unit
			3.3.1.4 Removing the Laser Scanner Unit
	3.4 IMAGE FORMATION SYSTEM
		3.4.1 MCY Developing Cylinder Drive Solenoid
			3.4.1.1 Preparation for Removing the MCY Developing Cylinder Drive Solenoid
			3.4.1.2 Removing the MCY Developing Cylinder Drive Solenoid
			3.4.1.3 The former procedure of removing the MCY Developing Cylinder Drive Solenoid
			3.4.1.4 Removing the MCY Developing Cylinder Drive Solenoid
		3.4.2 Bk Developing Cylinder Drive Solenoid
			3.4.2.1 Preparation for Removing the Bk Developing Cylinder Drive Solenoid
			3.4.2.2 Removing the Bk Developing Cylinder Drive Solenoid
			3.4.2.3 The former procedure of removing the Bk Developing Cylinder Drive Solenoid
			3.4.2.4 Removing the Bk Developing Cylinder Drive Solenoid
		3.4.3 ETB Unit
			3.4.3.1 Preparation for Removing the ETB Unit
			3.4.3.2 Removing the ETB Unit
			3.4.3.3 The former procedure of removing the ETB Unit
			3.4.3.4 Removing the ETB Unit
		3.4.4 Static Charge Eliminator
			3.4.4.1 Preparation for Removing the Static Eliminator
			3.4.4.2 Removing the Static Eliminator
	3.5 PICKUP/FEEDING/DELIVERY SYSTEM
		3.5.1 Paper Pick-up Feeder Unit
			3.5.1.1 Preparation for Removing the Pickup Feeding Assembly
			3.5.1.2 Removing the Pickup Feeding Assembly
			3.5.1.3 The former procedure of removing the Pickup/ Transport Assembly
			3.5.1.4 Removing the Pickup/Transport Assembly
		3.5.2 Pickup Motor
			3.5.2.1 Preparation for Removing the Pickup Motor
			3.5.2.2 Removing the Pickup Motor
			3.5.2.3 The former procedure of removing the Pickup Motor
			3.5.2.4 Removing the Pickup Motor
		3.5.3 Cassette Pickup Roller
			3.5.3.1 Removing the Pickup Roller
			3.5.3.2 Removing the Pickup Roller
		3.5.4 Cassette Pick-up Solenoid
			3.5.4.1 Preparation for Removing the Cassette Pickup Solenoid
			3.5.4.2 Removing the Cassette Pickup Solenoid
			3.5.4.3 The former procedure of removing the Cassette Pickup Solenoid
			3.5.4.4 Removing the Cassette Pickup Solenoid
		3.5.5 Cassette Separation Pad
			3.5.5.1 Removing the Separation Pad
			3.5.5.2 Removing the Separation Pad
		3.5.6 Manual Paper Sensor
			3.5.6.1 Preparation for Removing the Manual Feed Paper Sensor
			3.5.6.2 Removing the Manual Feed Paper Sensor
			3.5.6.3 The former procedure of removing the Manual Feeder Paper Sensor
			3.5.6.4 Removing the Manual Feeder Paper Sensor
		3.5.7 Registration Before Sensor
			3.5.7.1 Preparation for Removing the Registration Sensor
			3.5.7.2 Removing the Registration Sensor
			3.5.7.3 The former procedure of removing the Registration Sensor
			3.5.7.4 Removing the Registration Sensor
		3.5.8 Duplexing Reverse Motor
			3.5.8.1 Preparation for Removing the Duplexing Reversing Motor
			3.5.8.2 Removing the Duplexing Reversing Motor
		3.5.9 Duplexing Feed Motor
			3.5.9.1 Preparation for Removing the Duplexing Feed Motor
			3.5.9.2 Removing the Duplexing Feed Motor
	3.6 FIXING SYSTEM
		3.6.1 Fixing Assembly
			3.6.1.1 Preparation for Removing the Fixing Assembly
			3.6.1.2 Removing the Fixing Assembly
			3.6.1.3 The former procedure of removing the Fixing Assembly
			3.6.1.4 Removing the Fixing Assembly
		3.6.2 Fixing Film Unit
			3.6.2.1 Preparation for Removing the Fixing Film
			3.6.2.2 Removing the Fixing Film
			3.6.2.3 The former procedure of removing the Fixing Film
			3.6.2.4 Removing the Fixing Film
		3.6.3 Fixing Pressure Roller
			3.6.3.1 Preparation for Removing the Fixing Pressure Roller
			3.6.3.2 Removing the Fixing Pressure Roller
			3.6.3.3 The former procedure of removing the Fixing Pressure Roller
			3.6.3.4 Removing the Fixing Pressure Roller
		3.6.4 Fixing Motor
			3.6.4.1 Preparation for Removing the Fixing/Delivery Motor
			3.6.4.2 Removing the Fixing/Delivery Motor
			3.6.4.3 The former procedure of removing the Fixing/ Delivery Motor
			3.6.4.4 Removing the Fixing/Delivery Motor
Chapter 4 MAINTENANCE AND INSPECTION
	4.1 Periodically Replaced Parts
		4.1.1 Periodically Replaced Parts
	4.2 Consumables
		4.2.1 Durables Replaced by the User
		4.2.2 Durables Replaced by the Service Person
	4.3 Periodical Service
		4.3.1 Periodic Service
	4.4 Cleaning
		4.4.1 Pickup Roller
		4.4.2 Separation Pad
		4.4.3 Registration Roller
		4.4.4 Registration Sub Roller
		4.4.5 Registration Shutter
		4.4.6 Transport Guide
		4.4.7 Delivery Roller
		4.4.8 Fixing Inlet Guide
		4.4.9 Fixing Pressure Roller
		4.4.10 Electrostatic Eliminator Unit
		4.4.11 Fixing Pressure Roller
	4.5 User Maintenance
		4.5.1 Outline
		4.5.2 List Of Special Print Mode
		4.5.3 Outline
		4.5.4 List Of Special Print Mode
Chapter 5 TROUBLESHOOTING
	5.1 Countermeasures
		5.1.1 Image Faults
			5.1.1.1 Out of Focus
				5.1.1.1.1 Color Misalignment
	5.2 MEASUREMENT AND ADJUSTMENT
		5.2.1 Test Print
			5.2.1.1 Test Print
		5.2.2 Adjustment of Electrical Components
			5.2.2.1 After Replacing the DC controller PCB
			5.2.2.2 After Replacing the Video Controller PCB
			5.2.2.3 Replacing EEPROM (When E747-000 occurs)
		5.2.3 Adjustment of Fixing System
			5.2.3.1 Checking the Nip Width (fixing pressure roller)
		5.2.4 Adjustment of Pickup/Feeding/Delivery System
			5.2.4.1 When Replacing the Registration Roller
	5.3 SERVICE TOOLS
		5.3.1 Standard Tools
		5.3.2 Solvent/Oil List
	5.4 Location of Convectors
		5.4.1 Connectors
	5.5 ERROR CODE
		5.5.1 Error Code
		5.5.2 Error Code
	5.6 Service Mode
		5.6.1 Outline
			5.6.1.1 Outline
		5.6.2 Service Mode Table
			5.6.2.1 Service Mode Items
			5.6.2.2 Service Mode Items
Chapter 6 APPENDIX
	6.1 OUTLINE OF ELECTRICAL COMPONENTS
		6.1.1 Clutch/Solenoid
			6.1.1.1 Solenoids
			6.1.1.2 Solenoids
		6.1.2 Motor/Fan
			6.1.2.1 Motors and Fans
			6.1.2.2 Motors and Fans
		6.1.3 Sensor
			6.1.3.1 Sensors
			6.1.3.2 Sensors
		6.1.4 PCBs
			6.1.4.1 PCBs
			6.1.4.2 PCBs
                        
Document Text Contents
Page 1

Feb 26 2007

Service Manual

LBP5000/5100 Series

Page 81

Chapter 3

3-1

3.1 Before Parts Replacement

3.1.1 Outline
0010-6977

LBP5000

The pages that follow contain instructions on how to disassemble and assemble the machine. Be sure to follow the instructions whenever you have to replace parts
to correct a fault or at the end of the part life.

All work must be performed with the following in mind:
1. The instructions assume that the cassettes and cartridges have already been removed. Whenever you have removed a cartridge from the machine, make sure it is

in a protective bag to limit its exposure to light (no matter how short it may be).
2. The power plug must be disconnected for safety before starting to disassemble or assemble the machine.
3. Unless otherwise indicated, assembly is the reverse of disassembly in terms of the sequence of steps to perform.
4. The screws and fixings must be identified correctly in terms of type (length, diameter) and location.
5. The machine must not be operated with any of its parts removed.
6. You must not touch any PCB without first discharging the build-up of static electricity from your body, as by touching a metal area of the machine.
7. You must not touch the following with bare hands: pickup roller, separation pad, ETB, photosensitive drum, fixing film, pressure roller.

Page 82

Chapter 3

3-2

3.2 EXTERNAL AND CONTROLS SYSTEM

3.2.1 Rear Cover

3.2.1.1 Preparation for Removing the Rear Cover
0015-7635

LBP5100

1) Remove the delivery tray. (page 3-7)Reference [Removing the Delivery
Tray]

3.2.1.2 Removing the Rear Cover
0015-7551

LBP5100

1) Detach the cassette protective cover [1].
- 2 claws [2]

F-3-1
2) Detach the rear cover [1].

- 2 screws [2]
- 3 claws [3]

F-3-2

3.2.1.3 Removing the Rear Cover
0010-6493

LBP5000

1) Remove the rear cover [1].
- 2 screws [2]
- 3 claws [3]

F-3-3

3.2.2 Right Cover

3.2.2.1 Preparation for Removing the Right Cover / Right
Cassette Cover

0015-7605

LBP5100

1) Remove the delivery tray. (page 3-7)Reference [Removing the Delivery

Tray]
2) Detach the rear cover. (page 3-2)Reference [Removing the Rear Cover]

3.2.2.2 Removing the Right Cover / Right Cassette Cover
0015-7552

LBP5100

1) Open the front cover [1].

F-3-4
2) Open the upper cover [1].

F-3-5
3) Remove the 4 screws [1].

F-3-6
4) Lift up the upper cover [1] a little, and detach the right cover [2].

- 2 screws [3]
- 3 claws [4]

F-3-7

Page 161

Feb 26 2007

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