Xerox Phaser 6121 MFP Service Manual and Parts List Manual


Accurate, clear and concise text, combined with detailed illustrations and photos, lists of error code, instruction and diagrams, guide you through procedure of repair, remediate, maintenance and adjustments your copier, printer or scanner.
Present manual Xerox Phaser 6121 MFP contain clear instructions and procedures on how to fix the problems occurring in your equipment.
The information contained in this repair manual is necessary for the repair, but also prevention, resulting in a longer life of your equipment.
Format of the manual: PDF, makes it easy to navigate, instant download and print. English language.
To see what contain, please read table of contents:

About this Service Manual
Manual Organization
Symbols Marked on the Product
Power Safety Precautions
Electrostatic Discharge (ESD) Precautions
Service Safety Summary
Regulatory Specifications

1. GENERAL INFORMATION
Printer Introduction and Overview
Technical Support Information
Printer Configurations
Parts of the Printer
Front Views
Rear View
Options
Control Panel
Maintenance Items
Consumables
Specifications
Printer Specifications
Performance Specifications
Controller
Electrical Specifications
Environmental Specifications
Media and Tray Specifications
First Print Output Time (FPOT)
First Copy Output Time
Physical Dimensions and Clearances
Mounting Surface Specifications
Information Pages

2. THEORY OF OPERATION
Operational Overview
System Control
Paper Path of the Printer
Print Engine Paper Path
Automatic Document Feeder (ADF) Print Path
Sensors
Major Assemblies and Functions
Main Engine Component Overview
Fuser
Scanner
Laser Unit
Imaging Unit
Toner Cartridge
Toner Cartridge Rack
Transfer Belt
Transfer Roller
Process Control
Temperature/Humidity Sensor
System Thermal Regulation
Waste Toner Collection
Media Handling
Tray 1 Feeder
Output Tray
Automatic Document Feeder (ADF)
Duplex Unit
500-Sheet Feeder Unit (Tray 2)

3. ERROR MESSAGES AND CODES
Introduction
Accessing the Error Log History List
Error Messages
Jam Errors
Service Call Messages
Scan Errors
Fax Errors
Other Error/Warning Messages
Using the Troubleshooting Procedures
Jam Error Procedures
Initial Actions for Jam Errors
Jam Errors
Jam Error Procedures
Service Call Error Troubleshooting Procedures
0001 Main Motor Failure
001B Toner Rack Failure
0045 Scanner Fan Failure
004A Duplex Unit Fan Failure
004C Exhaust Fan Failure
004E LVPS Fan Failure
0092 Transfer Belt Failure
0094 Transfer Roll Failure
0300 Laser Motor Failure and 0310 Laser Unit Failure
0500 Fuser Failure and 0503 Thermistor Failure
0502 Thermistor Failure, 0510 Fuser Failure, and 0520 Fuser Failure
0650 Scanner Home Failure
0F51 Waste Toner Failure
1038 Interface Failure
133C Fax Modem Failure
13C0 Print Control Board Malfunction
13DD Initial Toner Failure
13E2 Engine ROM Failure
14A3 Scanner Head Failure
3FFF Control ROM Failure
CF01 Controller Failure

4. GENERAL TROUBLESHOOTING
Introduction
Servicing Instructions
Service Diagnostic Tests
General Printer Problems
2-Sided Printing Problems
Changing the Duplexing Speed
Media-Based Problems
Multiple-Sheet Pick
Mis-Pick
Control Panel Troubleshooting
Printer Does Not Come to a �Ready� State
Control Panel LED is On, Control Panel Display is Blank
Fax Troubleshooting
Fax Protocol Report
Transmission Fault
Reception Fault
Other Fax Problems
Fax Failure After Installation/Relocation
Fax Failure After Continuous Normal Operation
Power Supply Problems
Power Supply Troubleshooting
Control Panel Indicators Do Not Light
Abnormal Noise and Electrical Problems
Electrical Noise
Abnormal Noise During Standby
Operating System and Application Problems
Windows 2000, Windows XP, Windows Server Troubleshooting
Verify Settings
Verify Driver Installation
Macintosh Troubleshooting (Mac OS 10.2 and Higher)

5. PRINT-QUALITY TROUBLESHOOTING
Print-Quality Problems Overview
Defects Associated with Specific Printer Components
Initial Actions for Troubleshooting Print-Quality
Check the Media and Media Settings
Check Printer Condition
Environmental Checks
Print Quality Troubleshooting
Printing Test Patterns
Automatic Document Feeder (ADF) Print Quality Problems
Blank Copy or Black Copy
Light Print
Foggy Background
White or Colored Lines and Bands in Feed Direction
White or Colored Lines and Bands in Scan Direction
Black Spots
Gradation Reproduction Failure
Void Areas and White Spots
Colored Spots
Blurred Image
Incorrect Color Image Registration
Poor Fusing Performance or Offset
Brush Effect or Blurred Image
Back Marking
Uneven Pitch
Skew
Uneven Density in the Feed Direction
Uneven Density in The Scan Direction
Print-Quality Specifications

6 ADJUSTMENTS AND CALIBRATIONS
Adjust Function Procedures
Using the Adjust Functions
Service Mode
Entering Service Mode
Service Mode Menu Maps
Service Mode Menu
Service’s Choice Function Descriptions
Adjustment Function Descriptions
Counter Function Descriptions
Display
Functional Tests
Report
Fixed Zoom Change
Factory Test
Clear Data
Maintenance Mode
Maintenance Mode Entry Procedure

7. CLEANING AND MAINTENANCE
Maintenance Summary
Recommended Tools
Cleaning
Maintenance Procedures
RIP (Repair, Inspect, and Prevent) Procedure
Clean the Scanner Glass
Feed Roller
Laser Window
ADF Retard Roller and Feed Roller
ADF Pick Pad
500-Sheet Feeder Paper Pick-up Roller
Duplexer Transport Rollers

8. SERVICE PARTS DISASSEMBLY
Overview
Standard Orientation of the Printer
Preparation
Notations in the Disassembly Text
Fastener Types
Maintenance Items and Consumables
Imaging Unit
Fuser
Feed Roller
Separation Pad
ADF Pick-up Roller
ADF Feed Roller
ADF Pick Pad
Toner Cartridges
Covers
Rear Cover
Left Side Cover
Right Side Cover
ADF Rear Cover
Disassembly Procedures
Scanner
ADF Unit
Lifting Plate Assembly
Feeder
Laser Unit
Electrical
Control Panel
Transfer Roller
High Voltage Board
Engine Control Board
Fax Board
Image Processor Board
USB Board
Power Supply
Speaker
Main Motor
Developing Motor
Power Supply Fan Motor
Fan Duct Guide Assembly/Ventilation Fan Motor
Exit Tray Cooling Fan
Paper Path Guide Assembly
Front Door Switch
Solenoids and Sensors
Tray 1 Feed Solenoid
Registration Roller Solenoid
Image Transfer Solenoid
Cleaning Blade Solenoid (SD5)
Humidity Sensor/Registration Sensor
Duplex Unit Transport Sensor
500-Sheet Feeder Tray
500-Sheet Feeder Tray (PL15.0)
Duplex Unit
Duplex Unit (PL14.1)

9. PARTS LIST
Serial Number Format
Part Lists
Using the Parts List
Parts List Index
Part List 1.1 Automatic Document Feeder (1/2)
Part List 1.2 Automatic Document Feeder (2/2)
Part List 2.0 Scanner
Part List 3.0 External Parts
Part List 4.0 Main Frame Section
Part List 5.1 Rack/Rack Drive Section (1/2)
Part List 5.1 Rack/Rack Drive Section (2/2)
Part List 6.0 Paper Take-up Section
Part List 7.1 Transfer Section (1/2)
Part List 7.2 Transfer Section (2/2)
Part List 8.0 Paper Exit Section
Part List 9.1 Drive Section (1/2)
Part List 9.2 Drive Section (2/2)
Part List 10.0 Right Guide Section
Part List 11.0 Fuser
Part List 12.0 Cooling Section
Part List 13.0 Electrical Components Section
Duplex Unit
Part List 14.1 Duplex Unit (1/2)
Part List 14.2 Duplex Unit (2/2)
Part List 14.3 Duplex Base Unit
500-Sheet Tray Option
Part List 15.1 500-Sheet Tray (1/2)
Part List 15.2 500-Sheet Tray (2/2)
Part List 15.3 500-Sheet Feeder Tray
Xerox Supplies and Accessories
Service Kits

10. WIRING
Plug/Jack Designations and Locator Diagrams
Print Engine Plug/Jack Designators
System Connections
Plug/Jack Locators
Wiring Diagrams
Notations Used in the Wiring Diagrams
Control Panel Wiring
Engine Control Board Wiring
Imaging Wiring
Image Processor Board Wiring
Power Supply Wiring
HVPS Wiring
Reference
Phaser 6121MFP Menu Map
Menu Navigation
System Menu – Main
Copy Menu
Scan Menu
Fax Menu
Firmware Update
Acronyms and Abbreviations

Number of pages: 532.