Xerox Phaser 7750 Color Laser Printer Service Manual and Parts List


Accurate, clear and concise text, combined with detailed illustrations, 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 7750 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:

1. GENERAL INFORMATION
PRINTER INTRODUCTION AND OVERVIEW
PHASER 7750 PRINTER CONFIGURATIONS
PARTS OF THE PRINTER
EXTERIOR – FRONT VIEW
EXTERIOR – REAR VIEW
PHASER 7750 FRONT PANEL CONFIGURATION
IMAGE PROCESSOR BOARD AND REAR PANEL HOST INTERFACE
ROUTINE MAINTENANCE ITEMS AND CONSUMABLES
PRINTER SPECIFICATIONS
PHYSICAL DIMENSIONS AND CLEARANCES
MOUNTING SURFACE SPECIFICATION
FUNCTIONAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
MEDIA AND TRAY SPECIFICATIONS
2. THEORY OF OPERATION
SUMMARY OF THE PHASER 7750 PRINT PROCESS
PAPER PATH OF THE PRINTER
PAPER SIZE SENSING
PAPER FEEDING AND SENSING
FUSER
EAHG TONER
TECHNOLOGY OVERVIEW
STANDBY POWER
MACHINE RUN CONTROL AND NVRAM
DRIVE POWER
SYSTEM POWER SUPPLIES
ROS AND REGICON TECHNOLOGY OVERVIEW
WRITE BLACK PROCESS
REGICON OVERVIEW
#1 SKEW (FINE) SETUP
#2 IN/OUT SETUP
#3 CENTER SETUP
#4 SKEW (ROUGH) SETUP
VIEW THE REGICON PATTERNS
SENSORS
ATC SENSORS
ADC SENSOR
ADC OUTPUT CHECK
LOWER TRAY FEEDERS SENSOR AND BOARD LOCATIONS
3. ERROR MESSAGES AND CODES
INTRODUCTION
ACCESSING THE PRINTERS ERROR HISTORY
SERVICE CHECKLIST
SERVICE RIP (EVERY CALL) PROCEDURES
OVERVIEW FOR TROUBLESHOOTING ERROR CODES
USING THE TROUBLESHOOTING PROCEDURES
SYSTEM STARTUP AND POST
POWER ON SELF TEST (POST)
POST FAULTS
ERROR MESSAGES AND CODES INDEX TABLE
ERROR MESSAGES AND CODES PROCEDURES
BLACK ATC SENSOR FAILURE, CODE 15
TRANSFER ROLLER CONTACT FAILURE, CODE 20
TRANSFER ROLLER RETRACT FAILURE, CODE 21
1ST BTR CONTACT OR RETRACT FAILURE
ACCUMULATOR BELT HOME POSITION TOOK TOO LONG, CODE 30
ACCUMULATOR BELT HOME POSITION FAILURE, CODE 31
ACCUMULATOR BELT EDGE SENSOR FAILURE, CODE 32
ACCUMULATOR BELT DRIVE LOGIC FAILURE, CODE 34
UNEXPECTED ACCUMULATOR BELT HOME SENSOR SIGNAL, CODE 33
FUSER MAIN LAMP FAILURE, CODE 35
INSTALL OR RESEAT FUSER, CODE 41
FUSER STS (FRONT) WARM TIME FAILURE, CODE 42
FUSER SSR1 ON TIME FAILURE, CODE 43
FUSER SUB LAMP OVERHEAT FAILURE, CODE 44
FUSER STS (REAR) FAILURE, CODE 45
FUSER STS (REAR) WARM TIME FAILURE, CODE 46
FUSER SSR2 ON TIME FAILURE, CODE 47
FAN FAILURE, CODE 48
IMAGING UNIT MOTOR FAILURE, CODE 60
IMAGING UNIT [1] [2] [3] [4] COMMUNICATIONS FAILURE,
CODE 70, 71, 72, 73
BLACK IMAGING UNIT MOTOR FAILURE
WASTE CARTRIDGE FULL DETECTION SENSOR FAILURE, CODE 78
ENGINE LOGIC BOARD FAILURE, CODE 80
CONTROLLER TO ENGINE COMMUNICATIONS FAILURE, CODE 81
ENGINE LOGIC BOARD RAM/ROM FAILURE, CODE 82
ENGINE LOGIC BOARD NVRAM FAILURE, CODE 83
CONTROLLER TO ENGINE LOGIC BOARD TIME FAILURE, CODE 84
ENGINE LOGIC BOARD MICRO PITCH FAILURE, CODE 85
HIGHVOLTAGE POWER SUPPLY FAILURE, CODE 86
TRAY LIFT FAILURE, CODE 87
TRAY 1/MPT SIZE SENSOR (7-274), CODE?
LOWER TRAY COMMUNICATION FAILURE, CODE 88
REFLECTIVE SENSOR PROCEDURE
TRANSMISSIVE SENSOR PROCEDURE
FINISHER STAPLER MOVE SENSOR ON FAILURE, CODE 111
FINISHER STAPLER MOVE SENSOR OFF FAILURE, CODE 112
FINISHER STAPLER FAILURE, CODE 113
FRONT TAMPER HOME SENSOR FAILURE, CODE 114
REAR TAMPER HOME SENSOR FAILURE, CODE 115
FINISHER STACKER HEIGHT SENSOR OFF FAILURE, CODE 116
FINISHER STACKER TRAY FAILURE, CODE 117
FINISHER STAPLER FRONT CORNER ON FAILURE, CODE 118
FINISHER STAPLER FRONT CORNER OFF FAILURE, CODE 119
FINISHER EJECT CLAMP HOME SENSOR ON FAILURE, CODE 120
FINISHER EJECT CLAMP HOME SENSOR OFF FAILURE, CODE 121
CODE 122
FINISHER SET CLAMP FAILURE, CODE 123
FINISHER COMMUNICATION FAILURE, CODE 124
FINISHER STAPLE MODE LOGIC FAILURE, CODE 125
4. GENERAL TROUBLESHOOTING
INTRODUCTION
SERVICE DIAGNOSTICS
SERVICE DIAGNOSTIC FRONT PANEL BUTTON DESCRIPTIONS
SERVICE DIAGNOSTIC TESTS TABLE
FRONT PANEL TROUBLESHOOTING
THE PRINTER DOES NOT COME TO A READY STATE
INOPERABLE PRINTER TROUBLESHOOTING
TROUBLESHOOTING POWER SUPPLIES AND INTERLOCKS
TROUBLESHOOTING AC POWER
TROUBLESHOOTING THE LOW-VOLTAGE POWER SUPPLIES
TROUBLESHOOTING THE +3.3 VDC AND
(2) +5 VDC LOW-VOLTAGE POWER SUPPLIES
TROUBLESHOOTING THE 24 VDC LVPS
INTERLOCK CIRCUIT DIAGRAM
MEDIA JAMS AND THE PAPER PATH
MEDIA-BASED PROBLEMS
OPERATING SYSTEM AND APPLICATION PROBLEMS
WINDOWS 2000, WINDOWS XP, WINDOWS SERVER 2003
TROUBLESHOOTING (TCP/IP)
WINDOWS NT 4.X TROUBLESHOOTING (TCP/IP)
WINDOWS 98 AND WINDOWS ME TROUBLESHOOTING
MACINTOSH TROUBLESHOOTING
NOVELL NETWARE TROUBLESHOOTING
5. PRINT-QUALITY TROUBLESHOOTING
PRINT-QUALITY PROBLEMS OVERVIEW
DEFECTS ASSOCIATED WITH SPECIFIC PRINTER COMPONENTS
FRONT PANEL TEST PRINTS
TROUBLESHOOTING PRINT-QUALITY PAGE
COLOR TEST PAGES
ANALYZING THE TEST PATTERN
SOLID FILL PAGES
REPEATING DEFECTS PAGE
REMOVE PRINT SMEARS
ENGINE TEST PRINTS
PAPER PATH OPTIONS
PRINT LASER CHECK
PRINT HALFTONES
PRINT GRID 1-DOT
PRINT FAST SCAN 8 TONE
INITIAL ACTIONS BEFORE TROUBLESHOOTING ANY PRINT-QUALITY PROBLEMS:
6. ADJUSTMENTS AND CALIBRATIONS
REGISTRATION CONTROL (REGICON) ADJUSTMENT OVERVIEW
COARSE AND FINE SKEW ADJUSTMENTS
IN/OUT SKEW ADJUSTMENT
CENTER SKEW ADJUSTMENT
REGICON ADJUSTMENT PROCEDURES
REGICON #1 FINE SKEW ADJUSTMENT
REGICON #2 IN/OUT SKEW ADJUSTMENT
REGICON #3 CENTER SKEW ADJUSTMENT
REGICON #4 COARSE SKEW ADJUSTMENT
COARSE REGICON INITIALIZATION
ATC SENSOR SETUP
ADDITIONAL INFORMATION
RESETTING NVRAM
POSTSCRIPT NVRAM RESETS
SERVICE DIAGNOSTICS NVRAM RESETS
POSTSCRIPT NVRAM RESET
CLEAR TECH REP FAULTS
7. CLEANING AND MAINTENANCE
SERVICE PREVENTIVE MAINTENANCE PROCEDURE
CLEANING
8. SERVICE PARTS DISASSEMBLY
OVERVIEW
STANDARD ORIENTATION OF THE PRINTER FOR DISASSEMBLY
GENERAL NOTES ON DISASSEMBLY
PRINT ENGINE
OPTIONAL LOWER TRAYS
9. SERVICE PARTS LISTS
SERIAL NUMBER FORMAT
USING THE PARTS LIST
PARTS LIST 1.1 DRIVE UNIT
PART LIST 1.2 MAIN DRIVE MOTOR ASSEMBLY
PART LIST 1.3 STEERING MOTOR AND MOB
PART LIST 2.1 TRAY 2
PART LIST 2.3 TRAY FEEDER AND LEFT LOWER COVER ASSY
PART LIST 2.4 TRAY 2 FEEDER
PART LIST 2.6 REGISTRATION TRANSPORT
PART LIST 2.7 LEFT COVER UNIT
PART LIST 2.8 LEFT COVER ASSEMBLY: 1 OF 2
PART LIST 2.9 LEFT COVER ASSEMBLY: 2OF 2
PART LIST 2.10 EXIT TRANSPORT ASSEMBLY
PART LIST 2.12 TRAY 1: 1 OF 2
PART LIST 2.13 TRAY 1: 2 OF 2
PART LIST 2.14 TRAY 1 FEED ASSEMBLY
PART LIST 3.1 LASER (ROS) ASSEMBLY
PART LIST 4.1 XEROGRAPHIC MODULE: 1 OF 2
PART LIST 4.2 XEROGRAPHIC MODULE: 2 OF 2
PART LIST 5.1 LIFT UNIT
PART LIST 5.2 ACCUMULATOR BELT ASSEMBLY
PART LIST 5.6 ACCUMULATOR BELT ELEVATOR
PART LIST 6.1 DEVELOPER UNIT: 1 OF 2
PART LIST 6.2 DEVELOPER UNIT: 2 OF 2
PART LIST 7.1 FUSER ASSEMBLY
PART LIST 8.1 AIR SYSTEM
PART LIST 9.1 ELECTRICAL COMPONENTS: 1 OF 3
PART LIST 9.2 ELECTRICAL COMPONENTS: 2 OF 3
PART LIST 9.3 ELECTRICAL COMPONENTS: 3 OF 3
PART LIST 10.1 FRONT COVER
PART LIST 10.2 TOP COVER AND FRONT PANEL
PART LIST 10.3 REAR COVER
PART LIST 11.1 INVERTER TRANSPORT
PART LIST 12.1 DUPLEX UNIT ASSEMBLY
PART LIST 13.1 IMAGE PROCESSOR AND ENGINE CONTROL BOARDS
PART LIST 16.1 LOWER TRAYS 3/4/5 ASSEMBLY
PART LIST 16.5 LOWER TRAYS PAPER FEEDER: 1 OF 2
PART LIST 16.6 LOWER TRAYS PAPER FEEDER: 2 OF 2
PART LIST 16.13 LEFT COVER ASSEMBLY (LTD)
PART LIST 16.14 TRAY 4/5 LIFT GEAR ASSEMBLY
PART LIST 16.15 ELECTRICAL COMPONENTS AND CASTER
PART LIST 16.16 LOWER TRAY DECK
HARDWARE KITS
10. WIRING DIAGRAMS
PLUG/JACK LOCATIONS
PLUG/JACK LOCATOR MAPS
WIRING DIAGRAMS
11. PHASER 7750 FINISHER
PHASER 7750 FINISHER
FINISHER OVERVIEW
FINISHER SPECIFICATIONS
FINISHER ASSEMBLIES
INTERNAL ASSEMBLIES OF THE FINISHER
HORIZONTAL TRANSPORT SENSOR, INTERLOCK AND SWITCH LOCATIONS
FINISHER SENSOR, INTERLOCK AND SWITCH LOCATOR MAP
FINISHER SENSOR, INTERLOCK AND SWITCH LOCATOR MAP
FINISHER DISASSEMBLY
HORIZONTAL TRANSPORT ASSEMBLY
HORIZONTAL TRANSPORT TOP OPEN, FRONT, AND REAR COVER
HORIZONTAL TRANSPORT ENTRANCE UPPER COVER ASSEMBLY
HORIZONTAL TRANSPORT BELTS
HORIZONTAL TRANSPORT ENTRANCE SENSOR AND
TOP TRAY FULL SENSOR
GATE-IN SOLENOID ASSEMBLY
FINISHER COVERS
STACK HEIGHT-SENSOR ASSEMBLY
STACKER PAPER-SENSOR ASSEMBLY
SET CLAMP CLUTCH AND GEAR
EJECT ROLL ASSEMBLY
FINISHER CONTROL BOARD, BRACKET AND SHIELD
STACKER MOTOR ASSEMBLY
PADDLE SHAFT
PAPER TRANSPORT MOTOR (MOTOR ASSEMBLY MAIN)
CAM BRACKET ASSEMBLY
STAPLE UNIT ASSEMBLY AND MOTOR
COMPILER TRAY
FINISHER WIRING DIAGRAMS
FINISHER SERVICE PARTS LIST
PL 17.1 FINISHER
PL 17.2 GATE ASSEMBLY
PL 17.3 HORIZONTAL TRANSPORT ASSEMBLY: 1 OF 2
PL 17.4 HORIZONTAL TRANSPORT ASSEMBLY: 2 OF 2
PL 17.5 COVERS
PL 17.6 TOP COVER AND EJECT ROLL
PL 17.7 PAPER TRANSPORT: 1 OF 2
PL 17.8 PAPER TRANSPORT: 2 OF 2
PL 17.9 STAPLE UNIT ASSEMBLY
PL 17.10 COMPILER TRAY ASSEMBLY
PL 17.11 STACKER ELEVATOR ASSEMBLY
PL 17.12 EXIT ASSEMBLY
PL 17.13 ELECTRICAL COMPONENTS
PL 17.14 FINISHER RACK (STAND)
A APPENDIX
MENU MAP
SERVICE DIAGNOSTIC MENU MAP
SERVICE USAGE PROFILE STATUS CODES
MISSING CHAIN LINK CODES DEFINITIONS
PAPER WEIGHT EQUIVALENCE TABLE

Number of pages: 505.