Page 1 7300 P h a s e r ® C o l o r P r i n t e r Service Manual...
Page 3 P H A S E R ® 7 3 0 0 C O L O R P R I N T E R S E R V I C E M A N U A L Warning: The following servicing instructions are for use by qualified service personnel only.
Page 4 Copyright © 2002, Xerox Corporation. All Rights Reserved. Unpublished rights reserved under the copyright laws of the United States. Contents of this publication may not be reproduced in any form without permission of Xerox Corporation. Copyright protection claimed includes all forms of matters of copyrighted materials and information now...
Page 5 Safety Terms Manual Terms Various terms are used throughout this manual to either provide additional information on a specific topic or to warn of possible danger that might be present during a procedure or action. Be aware of all symbols and terms when they are used, and always read NOTE, CAUTION and WARNING messages.
Page 6: Power Source
Power Safety Precautions Power Source For 110 VAC printers, do not apply more than 127 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector. For 220 VAC printers, do not apply more than 240 volts RMS between the supply conductors or between either supply conductor and ground.
Page 7 Electrostatic Discharge (ESD) Precautions Some semiconductor components, and the respective sub-assemblies that contain them, are vulnerable to damage by electrostatic discharge (ESD). These components include integrated circuits (ICs), Large-Scale Integrated circuits (LSIs), field-effect transistors and other semiconductor chip components. The following techniques will reduce the occurrence of component damage caused by static electricity: Caution: Be sure the power is off and observe all other safety precautions.
Page 8: General Guidelines
Service Safety Summary General Guidelines For qualified service personnel only: Refer also to the preceding Users Safety Summary. Avoid servicing alone: Do not perform internal service or adjustment of this product unless another person capable of rendering first aid or resuscitation is present. Use care when servicing with power: Dangerous voltages may exist at several points in this product.
Page 9: Servicing Mechanical Components
Servicing Electrical Components Before starting any service procedure, switch off the printer power and unplug the power cord from the wall outlet. If you must service the printer with power applied, be aware of the potential for electrical shock. Warning: Turning the power off using the On/Off switch does not completely de-energize the printer.
Page 10 The equipment described in this manual generates and uses radio frequency energy. If it is not installed properly in strict accordance with Xerox's instructions, it may cause interference with radio and television reception or may not function properly due to interference from another device.
Page 11: Declaration Of Conformity
Declaration of Conformity Xerox Corporation, declares, under our sole responsibility that the printer to which this declaration relates, is in conformity with the following standards and other normative documents: In the European Union following the provisions of the Low Voltage Directive 73/23/EEC and its...
Page 12 A signed copy of the Declaration of Conformity for this product can be obtained from Xerox. Canadian Notice This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as described in the radio interference regulations of the Canadian Department of Communications.
Page 13: Table Of Contents
Table of Contents General Information 1 - 1 The Phaser 7300 Color Printer Overview...............1 - 2 Phaser 7300 Printer Configurations..............1 - 3 Printer Memory and RAM Capabilities............1 - 5 Parts of the Printer ....................1 - 6 Print Engine Base Configuration ..............1 - 6 Printer Options - Lower Tray Deck (LTD) and Lower Tray Assembly (LTA) ..............1 - 7 Printer Options (cont’d) - Duplex Unit............1 - 8...
Page 14 Troubleshooting 3 - 67 System Boot Sequence..................3 - 68 Power On Self Test (POST)................. 3 - 68 Printer Malefactions or Inoperable Printer Problems ........3 - 71 Verifying Power Supply Operation ..............3 - 72 Measuring Power Supply Voltages.............. 3 - 72 POWER Connector Pinout ................
Page 15 Field Replaceable Units (FRU) Parts List 7 - 193 Using the parts list ....................7 - 193 PL 1.0 - Covers ..................7 - 194 PL 2.0 - MPT Pick Assembly ..............7 - 196 PL 3.0 - Printer Control Components Boards..........7 - 198 PL 4.0 - Top Cover Inner Frame ..............7 - 200 PL 5.1 - Printer Unit Chassis (1 of 2) ............7 - 202 PL 5.2 - Printer Unit Chassis (2 of 2) and Power Supplies ......7 - 204...
Page 16 Phaser 7300 Color Printer Service Manual...
Page 17: General Information
General Information The Xerox Phaser® 7300 Color Printer Service Manual is the primary document used for repairing, maintaining, and troubleshooting the printer. To ensure a complete understanding of the product, Xerox recommends participation in Phaser 7300 printer service training. Contents The Phaser 7300 Color Printer Overview................1 - 2...
Page 18: The Phaser 7300 Color Printer Overview
Phaser 7300 Printer with Lower Tray Assembly (LTA) and Lower Tray Deck (LTD) The Phaser 7300 Printer combines a 4-color, LED-based, tandem-design tabloid print engine, with an Xerox OPB Image Processor Board (IP) that supports Adobe’s PostScript Level 3 page description language. The IP Board features a bi-directional parallel interface.
Page 19: Phaser 7300 Printer Configurations
Phaser 7300 Printer Configurations The printer is available in five configurations: Features Printer Model 7300B 7300N 7300DN 7300DT 7300DX Max print speed (see page 1-14) 30/37 30/37 30/37 30/37 30/37 Memory 128* 192* 192* 256* 384* PostScript Fonts 136 Type 1 115 Central European Type 1 PCL5c 46 PCL fonts (more fonts are available...
Page 20: Secure Prints, Proof Prints, Saved Prints And Pdf Direct Printing
Secure Prints, Proof Prints, Saved Prints and PDF Direct Printing These features are available only if the printer has a hard drive installed. Note: These jobs are stored on the printer’s optional hard drive and remain in the printer even when it is powered off. There is a limit of 100 jobs on the hard drive, per type.
Page 21: Printer Memory And Ram Capabilities
Printer Memory and RAM Capabilities The printer features two memory slots each of which can contain a 64-, 128-, or 256-Mbyte, 144 pin, SODIMM modules. Any slot may be used for any memory size SODIMM. Therefore, slot combinations are allowed providing configurations of 128, 192, 256, 320, 384, and up to 512 Mbytes.
Page 22: Parts Of The Printer
Parts of the Printer Print Engine Base Configuration Base Configuration, right-front view Item Description Table Description Description Top Output Tray Tray 1 Top Cover Paper Level Gauge Front Panel Top Cover Release Power Switch Multi-Purpose Tray Duplex Unit (optional - shown closed) Multi-Purpose Tray Release Duplex Unit Release Right Cover Door A...
Page 23: Printer Options - Lower Tray Deck (Ltd) And Lower Tray Assembly (Lta)
Printer Options - Lower Tray Deck (LTD) and Lower Tray Assembly (LTA) & " 300-32 Item Description Table Description Description Tray 2 Right Door B Tray 3 Right Door C Tray 4 Right Door D Tray 5 Right Door E Lower Tray Assembly Lower Tray Deck 550-sheet feeder (LTA)
Page 24: Printer Options (Cont'd) - Duplex Unit
Printer Options (cont’d) - Duplex Unit 7300-33 Duplex Unit shown with Tray 1 Duplex Unit The Duplex Unit attaches to the top of Tray 1. ■ When opening the Duplex Unit, Tray 1 opens also to support the Duplex ■ Unit.
Page 25: Front Panel Configuration
Front Panel Configuration The Front Panel consists of one tricolor LED, a display window and six functional keys. These keys navigate the menu system, perform functions and select modes of operation for the printer. Front Panel LED indicators: Green = Ready to Print or Printing ■...
Page 26: Image Processor (Ip) Board Components
Image Processor (IP) Board Components S7300-152 Description LED GI02 “health” : Flashes to indicate proper CPU operation. Hard Drive (optional) Memory (RAM) SODIMM 1 and SODIMM 2 Configuration Upgrade Chip (“i” Button) NVRAM LED GI03: On indicates 10baseT connection and Off indicates a 100baseT connection.
Page 27: Rear Panel Configuration Of The Ip Board
Rear Panel Configuration of the IP Board S7300-173 Description Image Processor Board Fan DIP switches USB Port The ethernet port LED TD light is Off when the printer is connected to an ethernet network. It blinks yellow while data is transmitted to the host Ethernet Port (Not supported on the 7300B) The ethernet port LED RD light is off when the printer is not connected to an ethernet network.
Page 28: Dip Switches
DIP Switches Open Closed Back Front S7300-173a The DIP switches are defined as follows: Mode Switch 1 Switch 2 Switch 3* Switch 4** Customer Mode Open Open Service Mode Open Closed Closed Closed Developer Mode (no POST) Disaster Recovery (Vx Works only) Closed Open * Switch 3 selects whether PostScript (CLOSED) or Vx Works (OPEN) is available on the rear...
Page 29: Printer Specifications
Printer Specifications Physical Dimensions - Print Engine Dimensions Specification Height: 460 mm (18.1 in.) Width: 666 mm (26.2 in.) Depth: 626 cm (24.6 in.) Weight: 68 kgs (149 lbs.) Physical Dimensions - Options Dimensions Specification Optional 550-Sheet Feeder (Tray 2) Width: 666 mm (26.2 in.) Depth:...
Page 30: Functional Specifications
Functional Specifications Characteristic Specification Printing process Electro-photographic, four color (CMYK) tandem transfer printing Color medium Four toner cartridges, each contain one of four colors: cyan, magenta, yellow or black. The toner is a nonmagnetic, monocomponent contact medium. Resolution / Standard and Draft 600 x 600 dpi (Factory Default) Addressability Enhanced...
Page 31: Electrical Specifications
Electrical Specifications Characteristic Specification Primary line voltages 110 - 127 VAC (115 VAC nominal) 220 to 240 VAC (230 VAC nominal) Primary voltage 50 (48 to 52) or 60 (58 to 62) Hz frequency range Power consumption Peak: 1600 W Normal Operation: 800 W Idle:...
Page 32: Media And Tray Specifications
Environmental Specifications (cont'd.) Characteristic Specification Vibration/shock Operating May drop any side or corner 50 mm (2 in.) without impairment of subsequent operation. Non-Operating (vibration) On five mutually perpendicular axes: 0.5 g, 25-minute sweep, 5 to 200 to 5 Hz, 100 to 200 sec./sweep cycle. No resonant Non-operating (shock) frequencies below 50 Hz.
Page 33 Media and Tray Specifications (cont'd.) Specification Supported Tray(s) Supported Commercial #10 4.12 x 9.5 in Envelopes Monarch Envelope 3.87 x 7.5 in All Envelopes A7 Envelope 5.25 x 7.25 in print from the Custom Supported MPT Only DL Envelope 110 x 220 mm Weight: C4 Envelope 229 x 324 mm...
Page 34 1 - 18 Phaser 7300 Color Printer Service Manual...
Page 35: Error Messages And Codes
Error Messages and Codes This section covers troubleshooting procedures for the Phaser 7300 printer’s front panel error messages and codes. Only jams and fatal errors will produce an associated alphanumeric code. When an error first occurs, record the error message and code, then cycle power to the printer to see if the error reoccurs.
Page 36: Error Messages And Codes Index
Error Messages and Codes Index Error Front Panel Message Usage Page Code Profile Code Jam at Top Cover 2 - 37 Jam at Top Cover 2 - 37 Jam at Top Cover 2 - 37 Jam at Door A 2 - 39 Jam at Top Cover 12 or 13 2 - 37...
Page 37 Error Front Panel Message Usage Page Code Profile Code Engine Control Failure 2 - 58 Power Supply Failure 2 - 58 Feeder Home Failure 2 - 59 Controller Fan Failure (Electrical Card Cage Fan) 2 - 59 Power Supply Fan Failure 2 - 60 Duplex Interface Failure 2 - 60...
Page 38 Error Front Panel Message Usage Page Code Profile Code Fuse Cut Error in Yellow Imaging Unit 2 - 65 Fuse Cut Error in Black Imaging Unit 2 - 65 Error Messages not associated with an alphanumeric code Adjust Tray [1] Size 2 - 47 Adjust Tray [2] Size 2 - 47...
Page 39 Error Front Panel Message Usage Page Code Profile Code MPT Empty, Load Paper 2 - 44 Load Tray [1] with [size*] [type*] 2 - 46 Load Tray [2] with [size*] [type*] 2 - 46 Load Tray [3] with [size*] [type*] 2 - 46 Load Tray [4] with [size*] [type*] 2 - 46...
Page 40: Service Flowchart
Service Flowchart The Service Flowchart outlines one possible approach to troubleshooting and repair of the printer. The Service Flowchart is an overview of the path a service technician could take, using this technical manual, to service the print engine and options. If you choose not to use the Service Flowchart, it is recommended that you start at the appropriate troubleshooting table and proceed from there.
Page 41: Using The Troubleshooting Procedures
Using the Troubleshooting Procedures Each Step in a Troubleshooting Procedure instructs you to perform a certain action or procedure. The steps are to be followed sequentially in the order given until the problem is fixed or resolved. The Actions and Questions box contains additional information and/or additional procedures you must follow to isolate the problem.
Page 42: Service Diagnostics
Service Diagnostics The Phaser 7300 Color Printer has built-in diagnostics to aid in troubleshooting problems with the printer. The Service Diagnostics Menu provides a means to test sensors, motors, switches, clutches, fans and solenoids. Diagnostics also contain built-in test prints, adjustments and calibrations, printer status and some NVRAM access and resets.
Page 43: Service Diagnostics Tests And Functions Table
Service Diagnostics Tests and Functions Table Menu Item Front Panel Display Results Functional Definition Print Service Menu Map - Prints the service diagnostics menu map, exits diagnostics, runs POST and returns printer to Ready. General Status - Displays user-selected engine information. Engine Status <No Status to Report>...
Page 44 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition Test Prints - Prints test prints stored on the Engine Controller Board. The prints are used by service personnel to identify, repair and validate the operability of the printer. Used to isolate print problems to the engine or Image Processor by eliminating the normal image data transfer process from the Image Processor Board to the Engine Controller Board.
Page 45 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition Select Duplex Select Duplexing: On/Off /Simplex <Press Info to change> Please wait... <Press OK to accept value> Duplex is set to On/Off <Press Back or Cancel to abort> Select Job Select Offset: On/Off Controls how print jobs are...
Page 46 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition transfer unit Transfer Motor is On/Off Remove all the Imaging Units Motor before proceeding with the test. Defeat the top cover interlock switch, then resume the test. <Press OK to start motor>...
Page 47 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition Registration Registration is Media Present / Not Entrance Present Sensor MPT Entrance MPT Entrance Paper is Present / Not Sensor Present transfer unit transfer unit Paper is Present / Not Entrance Present Sensor...
Page 48 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition CMYK Toner Black Missing / Installed Toggle the actuator to change Cart Sensor sensor state. Yellow Missing / Installed Magenta Missing / Installed Cyan Missing / Installed Read Fuses Fuser is Cut / Not Cut TBelt is Cut / Not Cut...
Page 49 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition Adjustments/Calibrations - Performs adjustments, calibrations or operations essential to the performance of the printer. For complete walk-through procedures, refer to the section "Test Prints, Adjustments, and NVRAM Resets" on page 4-111. (ADC) Auto Density Control - Density Calibration: Verifies ADC operation, replacement ADC tag number is entered, then the operation is tested.
Page 50 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition Execute Thickness Calibration - Thickness Calibration: Engine is prepared for calibration run, then media is picked from the MPT. Cycle power to the printer if repeated failures are encountered.
Page 51 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition ATS Gauge Calibration - Verifies ATS Calibration. FOR ENGINEERING USE ONLY. Edit Gauge Enter Thickness: nn Microns <Press Down for more data> Data <Press Info for help> <Press Back or Cancel to exit>...
Page 52 Service Diagnostics Tests and Functions Table (cont'd.) Menu Item Front Panel Display Results Functional Definition IUs: Y = nnn images <Press Down for more data> M = nnn images C = nnn images K = nnn images Toner: Y = nnn % used <Press Down to repeat data>...
Page 53: Error Messages And Codes Procedures
Error Messages and Codes Procedures Jam at Top Cover Jam at the MPT or under Imaging Units. Jam at Fuser Exit. A10: Jam at output area. A22: Jam in the paper feed path, including under the Imaging Units. Troubleshooting Procedure Table Steps Actions and Questions Ensure the correct weight and type of...
Page 54 Troubleshooting Procedure Table (cont'd.) Steps Actions and Questions Check the sensor for debris that could Clean the sensor Go to step [7]. interfere with normal operation. or remove debris. Is there debris present? Verify the wiring harness for the problem Replace the Replace the sensor is free from damage or defects.
Page 55 Jam at Door [A] [B] [C] [D] [E] A11: Jam at Door A B21: Jam at Duplex Unit Troubleshooting Procedure Table Steps Actions and Questions Ensure the correct weight and type of Go to step [2]. Load approved paper is loaded in the tray. media and run a set of test prints See “Media and Tray Specifications”...
Page 56 Troubleshooting Procedure Table (cont'd.) Steps Actions and Questions Use service diagnostics to test the tray Go to step [12]. Replace the Feed feed motor and clutch. Assembly for a bad clutch. Note: Feed rollers located behind each right door are driven by the feed motor in For a bad motor the tray below.
Page 57: Jam At Duplex Unit
Jam at Duplex Unit Jam inside Duplex Unit. B13: Jam inside Duplex Unit. Troubleshooting Procedure Table Steps Actions and Questions Ensure the correct weight and type of Go to step [2]. Load approved paper is loaded in the tray. media and run a set of test prints See “Media and Tray Specifications”...
Page 58 Misfeed at Tray [1] [2] [3] [4] [5] Tray 1 Tray 2 Tray 3 Tray 4 Tray 5 Troubleshooting Procedure Table Steps Actions and Questions Ensure the correct weight and type of Go to step [2]. Load approved paper is loaded in the tray. media and run a set of test prints See “Media and Tray Specifications”...
Page 59 Insert Tray [1] [2] [3] [4] [5] Tray 1 Tray 2 Tray 3 Tray 4 Tray 5 Troubleshooting Procedure Table Steps Actions and Questions Ensure the tray is properly installed and Go to step [2]. Reseat the Paper seated correctly. Tray.
Page 60 MPT Empty, Load Paper Troubleshooting Procedure Table Steps Actions and Questions Visually inspect the MPT Actuator. Replace the MPT Go to step [2]. Pick Assembly. Is the actuator damaged? Use service diagnostics to check the MPT Go to step [4]. Go to step [3].
Page 61 Load MPT with [size*] [type*] Note: This is a media mis-match error. Troubleshooting Procedure Table Steps Actions and Questions Ensure the correct weight and type of Go to step [2]. Load approved paper is loaded in the tray. media and run a set of test prints See “Media and Tray Specifications”...
Page 62 Load Tray [1] [2] [3] [4] [5] with [size*] [type*] Note: This is a media mis-match error. Troubleshooting Procedure Table Steps Actions and Questions Verify the paper loaded in the tray is the Go to step [2]. Match the correct size and the orientation matches orientation of the the front panel and driver settings.
Page 63 Adjust Tray [1] [2] [3] [4] [5] Size Troubleshooting Procedure Table Steps Actions and Questions Verify the paper loaded in the tray is the Go to step [2]. Match the correct size and the orientation matches orientation of the the front panel and driver settings. paper and settings.
Page 64: Close Top Cover
Close Top Cover Troubleshooting Procedure Table Steps Actions and Questions Cycle power to the printer and open and Go to step [2]. Complete close the top cover. Does the error still appear? Use service diagnostics to test the top Go to step [3]. Go to step [5].
Page 65: Close Right Door A
Close Duplex Unit Troubleshooting Procedure Table Steps Actions and Questions Is the Duplex Unit installed correctly and Go to step [2]. Reseat the properly seated? Duplex Unit. Remove the Duplex Unit and cycle power Replace the Go to step [3]. to the printer.
Page 66: Open Left Side Output Tray
Close Right Door [B] [C] [D] [E] Troubleshooting Procedure Table Steps Actions and Questions Inspect the door actuator for damage or Replace the Tray Go to step [2]. defects. Inspect the door switch for damage, Replace the Go to step [3]. defects or obstructions.
Page 67 Humidity Too High to Print Troubleshooting Procedure Table Steps Actions and Questions Use service diagnostics to verify the Go to step [2]. Advise the printers current operating humidity. customer on humidity Is the printer operating within the humidity specifications. specifications? See “Environmental Specifications”...
Page 68 Install or Reseat [CMYK] Imaging Unit Troubleshooting Procedure Table Steps Actions and Questions Is the Imaging Unit installed and seated Go to step [2]. Reseat the properly? Imaging Unit. If the keys are not set properly on the Go to step [3]. Reset the keys Imaging Units they may not seat properly.
Page 69 Install or Reseat [CMYK] Toner Cartridge Troubleshooting Procedure Table Steps Actions and Questions Has all the tape and packaging material Go to step [2]. Remove the been removed from the Toner Cartridge? material. Is the Toner Cartridge installed and Go to step [2]. Reseat the Toner seated properly? Cartridge.
Page 70: Install Or Reseat Fuser
Install or Reseat Fuser Steps Actions and Questions Is the Fuser Unit installed and seated Go to step [2]. Reseat the Fuser. properly? Visually inspect the Fuser latches. Replace the Fuser Replace in the latches. following order: Are the latches damaged or defective? Fuser Engine Controller Board...
Page 71: Install Or Reseat Transfer Unit
Install or Reseat Transfer Unit Troubleshooting Procedure Table Steps Actions and Questions Is the transfer unit installed and seated Go to step [2]. Reseat the properly? transfer unit. Check the Transfer Unit voltage contacts Clean with a pencil Replace in the for corrosion, dirt or debris.
Page 72 T1: Fuser Upper Failure T2: Fuser Lower Failure Troubleshooting Procedure Table Steps Actions and Questions Reseat the Fuser Unit. Go to step [2]. Complete Did the error reappear? Check the resistance of the lamps. Go to step [3]. Replace the Fuser.
Page 73 T30: RH Sensor Failure Troubleshooting Procedure Table Steps Actions and Questions Use Service Diagnostics to check the Replace the Notify customer of current ambient humidity inside the Temp/Humidity the environmental printer. Sensor Board. specifications. Is the sensor operating correctly? See Replace the “Environmental Specifications”...
Page 74 U0: Engine ROM Failure U1: Engine RAM Failure U2: Engine EEPROM Failure U3: Engine EEPROM Missing Failure U4: Engine SRAM Failure U5: Engine Control Failure Troubleshooting Procedure Table Steps Actions and Questions Cycle power to the printer. Go to step [2]. Complete Does the error still appear? Perform an NVRAM Reset.
Page 75 U7: Feeder Home Failure Troubleshooting Procedure Table Steps Actions and Questions Visually inspect the MPT Liftplate by Go to step [3]. Go to step [2]. printing a job to the MPT. Does the liftplate operate correctly? Use service diagnostics to check the Replace the MPT Replace the registration motor.
Page 76 U9: Power Supply Fan Failure Troubleshooting Procedure Table Steps Actions and Questions Visually inspect the front and rear LVPS Replace the Go to step [2]. fans for proper operation and airflow. Engine Controller Board. Run service diagnostics to test the Rear Fuser Fan.
Page 77 Tray [2] [3] [4] [5] Interface Failure U14: Tray 2 U13: Tray 3 U16: Tray 4 U17: Tray 5 Troubleshooting Procedure Table Steps Actions and Questions Cycle power to the printer. Go to step [2]. Complete Does the error still appear? Check each of the lower tray connectors Replace in the Replace the...
Page 78 [Yellow] [Magenta] [Cyan] [Black] Imaging Unit Failure U26: Yellow U27: Magenta U28: Cyan U29: Black Troubleshooting Procedure Table Steps Actions and Questions Is the Imaging Unit installed and seated Go to step [2]. Reseat the properly? imaging unit. Visually inspect the Imaging Unit Drum Replace the IU Go to step [3].
Page 79 Troubleshooting Procedure Table Steps Actions and Questions Verify the Low Voltage Power Supply to Replace the Replace the Low the POWER connector on the Engine Imaging Unit Voltage Power Controller Board is supplying +34 volts to Motor. Supply and/or pins 12, 13, and 14. wiring harness.
Page 80 U33: Fuser 110v/220v Mismatch Failure Troubleshooting Procedure Table Steps Actions and Questions Ensure the proper Fuser (110v vs. 220v) Replace the Have the is installed in the printer. Engine Controller customer replace Board. the Fuser Unit. Is the correct Fuser installed? U34: Unsupported Duplex Unit ROM Failure Troubleshooting Procedure Table Steps...
Page 81 W16: Fuse Cut Error in Fuser Troubleshooting Procedure Table Steps Actions and Questions Install a new Fuser and verify the fuse Go to step [2]. Complete blows. Does the error still appear? Check the wiring harness between the Replace the wiring Replace in the LVPS to the POWER connector on the harness.
Page 82 2-66 Phaser 7300 Color Printer Service Manual...
Page 83: Troubleshooting
Troubleshooting This section is for troubleshooting electrical, print-quality, media jams and paper path problems not associated with an error message or code. For information on troubleshooting error codes and messages, see “Error Messages and Codes” on page 2-19. Contents System Boot Sequence ......................3 - 68 Power On Self Test (POST) ....................3 - 68 Printer Malfunctions or Inoperable Printer Problems............3 - 71 Verifying Power Supply Operation ..................3 - 72...
Page 84: System Boot Sequence
The backlight is turned on with nominal intensity. ■ The POST Vn.nn message appears, and tests are quickly executed. ■ After the POST tests have finished running, the Xerox ‘splash screen’ is ■ posted to the front panel and PostScript begins initialization. 3-68...
Page 85: Fault Reporting Devices
POST Faults There are two kinds of faults: soft and hard. A soft fault is any fault that is discovered by POST, but does not prevent the operating system from initializing and becoming available as a tool for troubleshooting. These POST faults do not stop execution and are reported on the StartPage in a red box after the system is running.
Page 86: Post Diagnostics Test Descriptions
POST Diagnostics Test Descriptions POST Diagnostics Test Descriptions Table Test Fault Description Code SDRAM (Hard Special) This test fails if the boot loader finds no RAM present or faulty RAM. Boot loader posts the message “RAM error” to the front panel and blinks the front panel LED.
Page 87: Printer Malefactions Or Inoperable Printer Problems
Printer Malefactions or Inoperable Printer Problems No Front Panel Display After Power Switch is Turned ON. Verify the AC power source, see “Measuring Power Supply Voltages” on page 3-72. Verify the +5 volt loop is complete, see “The +5 VDC Loop” on page 3-74. If the front panel has no display, backlighting or LED, replace the Front Panel and Wiring Harness.
Page 88: Verifying Power Supply Operation
Verifying Power Supply Operation Verifying the power supply involves four steps: Measuring the input and output voltages. ■ Checking the safety interlocks. ■ Ensuring the +5 VDC loop is complete. ■ Testing for a shorted motor or defective wiring which would shut down the ■...
Page 89: Safety Interlocks
Safety interlocks The printer features two safety interlock switches: 7300-016 Door safety interlock switches 1: Top Cover Interlock Switch 2: Right Cover (Door A) Interlock Switch When the Top Cover or Right Door A are open, the +34 VDC supply and the high-voltage power supply are shut down.
Page 90: The +5 Vdc Loop
The +5 VDC Loop Refer to the wiring diagram, "The +5 Volt Loop" on page 10-258 for all procedures listed under this topic. Upon power-up the low-voltage power supply (LVPS) generates a +5 volt signal which is routed out of the LVPS through the engine control board to the toner sensor board and then back out the toner sensor board to the low-voltage power supply.
Page 91: Fuser Roller Resistances
Fuser Roller Resistances Remove the Fuser from the printer and turn the Fuser upside down to locate the connectors on the bottom. Fuser Measure between... Resistance (ohms) Fuser unit Upper Roller Between Pins A and B New fuser: The fuse between pins Between Pins C and D Between 200k - 250k ohms C and D of the lower roller should...
Page 92: Multi-Sheet Pick
Multi-Sheet Pick Ensure the correct weight and type of media is loaded in the tray. See "Media and Tray Specifications" on page 1-16 for approved media types and weights. Verify that the media settings at the front panel and the driver settings match the media loaded in the tray.
Page 93: Operating System And Application Problems
Problems Print an internal test print from the printer’s front panel to ensure the problem is not printer related. Troubleshooting tips and more information are also available on the Xerox web site at: www.xerox.com/officeprinting/support. Macintosh Printing Problems Image Never Prints The printer acts as if it is receiving data, but nothing comes out of the printer or it goes back to “Ready”...
Page 94: Network Problems
Windows printing problems Image Never Prints Power cycle to the printer and try printing again. Try printing a test page from the printer driver’s properties dialog box. Try printing from another application. Try printing to another printer. Try printing from another computer. If the error returns, turn ON the PostScript error handler through the front panel PostScript Error Info in the Support menu, or CentreWare IS and print the document again.
Page 95: Print-Quality Problems
Print-Quality Problems Print-quality defects can be attributed to printer components, consumables, media, internal software, external software applications or environmental conditions. To successfully troubleshoot print quality problems, as many variables as possible must be eliminated before replacing printer parts. When analyzing a print-quality defect, first determine if the defect occurs in all colors or only one color and if it is repeating or random.
Page 96: Repeating Defects Identification Chart
Some print-quality problems can be associated with specific assemblies. The most common problems and the associated assemblies are listed below. Refer to the specific print-quality troubleshooting procedure for more information. Imaging Units - generally seen in only one color. ■ Streaks in Process Direction (in the direction of paper feed, parallel with ■...
Page 97: Light Prints In All Colors
Light Prints in All Colors The overall image density is too light in all colors. If the image is light in only one color, see “Light Prints in Only One Color” on page 3-83. 7300-019 Troubleshooting Procedure Step Question or Action Verify all packaging material has been removed Go to step [2].
Page 98 Troubleshooting Procedure (cont'd.) Step Question or Action Is +5V supplied to the POWER connector pins Replace the Replace the 1, 2, 3, 4, 5, 6, 7 and 8 on the Toner Sensor Toner Sensor LVPS. Board? Board. Is +34V supplied to the POWER connector pins Go to step [10].
Page 99: Light Prints In Only One Color
Light Prints in Only One Color Only one color, yellow, magenta, cyan, or black is too light on the printed image. In the example to the left, cyan is printing too light causing the blue flower to look too light and effecting the true green of the leaves.
Page 100 Troubleshooting Procedure (cont'd.) Step Question or Action Are the wiring harnesses on the LED heads Go to step [9]. Replace or undamaged, properly routed and seated? reseat the wiring harness. Is +5V supplied to Pin 1 of the problem LED Replace the Go to step [10].
Page 101: Blank Prints
Blank Prints The entire page is blank, no image is printed. 7300-021 Troubleshooting Procedure Step Question or Action Print a 100% Solid Fill Test Print from the Go to step [2]. Have the printer’s front panel. customer check there application Is the entire test print blank? and printer settings.
Page 102 Troubleshooting Procedure (cont'd.) Step Question or Action Is +34V supplied to the POWER connector pins Go to step [8]. Replace the 12, 13, and 14 on the Engine Controller Board? LVPS or wiring harness. Is +34V supplied to the HVOLT connector Pin 2 Go to step [9].
Page 103: Mottled Or Splotchy Prints
Mottled or Splotchy Prints The print image has a mottled appearance. Note: This defect is know to occur when manually duplexing, at low humidity, on the following types of media: OPB Branded Greeting Cards ■ OPB Branded CD Inserts ■ OPB Branded Business Cards ■...
Page 104 Troubleshooting Procedure (cont'd.) Step Question or Action Is +34V supplied to the HVOLT connector Pin 2 Go to step [7]. Replace the on the Engine Controller Board.? Engine Control Board. Inspect the high-voltage wiring harnesses. Replace any Replace in the defective wiring following order: Are the wiring harnesses defective?
Page 105: Unexpected Colors
Unexpected Colors 7300-023 Color Expected Printed Image The colors produced by the printer are dramatically different from the color expected. Troubleshooting Procedure Step Question or Action Print the Color Reference Page and evaluate Complete, the Go to step [2]. the colors. problem is with the customer Are the colors on the Color Reference Page...
Page 106 Troubleshooting Procedure (cont'd.) Step Question or Action Swap the Imaging Unit of the problem color Replace the Go to step [8]. with any other Imaging Unit. Imaging Unit. Note: Remove the keys before swapping. Print a Solid Fill Test Pattern to check for defects.
Page 107: Background Contamination
Background Contamination There is a very light covering of toner across the entire page. Background contamination can appear in one of the primary colors or gray. Note: Printing on some speciality papers, such as glossy finish paper, may show background contamination. 7300-024 Troubleshooting Procedure Step...
Page 108 Troubleshooting Procedure (cont'd.) Step Question or Action Check the Imaging Unit contacts (3-pin Clean the or Go to step [9]. contacts) and make sure they are in good replace the working condition and not contaminated. Drum Contacts. Remove the Imaging Units and the Transfer Clean the Replace in the Unit and check for toner contamination on the...
Page 109: Toner On Back Of Print
Toner on Back of Print There is toner on the back of the printed sheet of paper. 7300-025 Troubleshooting Procedure Step Question or Action Clean the interior of the printer. Complete Go to step [2]. Check the exit rollers and paper guides for toner debris.
Page 110 Troubleshooting Procedure (cont'd.) Step Question or Action Remove the covers on the Fuser and ensure Go to step [7]. Replace the the thermistors are in contact with the upper Fuser. and lower rollers. Use service diagnostics to generate an engine Replace the Replace Engine test print and monitor the upper and lower fuser...
Page 111: Repeating (Defects) Bands, Lines, Marks Or Spots
Repeating (Defects) Bands, Lines, Marks or Spots This is usually caused by a damaged roller in the Imaging Unit, Fuser or Transfer Unit. In some instances, the spots may be dark instead of white and may also be in any shape, but the defect is repeated on the print.
Page 112: Random Bands, Lines, Marks Or Spots
Random Bands, Lines, Marks or Spots Random “missing” spots There are areas of the image extremely light or are missing entirely and do not appear to be a repeating defect or in a single color. 7300-026 This printer supports custom page sizes. When troubleshooting, print a test ■...
Page 113: Random Spotting
Random Spotting There are spots of toner randomly scattered across the page. Toner melting off the Fuser thermistors can also place random spots onto prints. 7300-029b S7300-029 Troubleshooting Procedure Question or Action Step Is there toner spilled inside the printer? Vacuum inside Go to step [2].
Page 114: Residual Imaging Or Ghosting
Residual Imaging or Ghosting There are faint, repeating images appearing on the page. The images may be either from a previous page or from the page currently being printed If the colors are offset by only a small amount (10 mm maximum), this is mis-registration, not ghosting, see “Color Mis-Registration”...
Page 115 Troubleshooting Procedure Step Question or Action Print the Repeating Defects page and compare Replace the Go to step [2]. to the customer’s print to determine if the defect Imaging Unit. is Fuser or Imaging Unit related. Is the defect repeating at 94 mm? Perform the Remove Print Smears from the Complete Go to step [3].
Page 116: Cold Offset - Unfused Image Or Image Easily Rubs Off The Paper
Cold Offset - Unfused Image or Image Easily Rubs off the Paper The Fuser temperature is set too low for the media loaded in the tray causing the toner to not completely fuse on the printed page, rubbing off easily. This generally occurs on high-coverage prints.
Page 117: Color Mis-Registration
Color Mis-Registration The image appears blurred and the primary colors are not aligning correctly into one image. For a page oriented Long-Edge Feed, as the one shown here, the following applies: If the colors are shifted from left to right, this is mis-registration in the process direction.
Page 118 Troubleshooting Procedure (cont'd.) Step Check Replace the Color Registration Sensor. Complete Go to step [9]. Did this fix the problem? Replace the Engine Controller Board Complete. Replace the EEPROM. Engine Controller Did this fix the problem? Board. Scan Direction: Replace the Go to step [10].
Page 119: Image Is Not Centered Or Positioned Correctly On The Paper
Image is Not Centered or Positioned Correctly on the Paper The image is not centered on the page correctly. 7300-034 Troubleshooting Procedure Step Check Check the user’s application and printer driver Go to step [2]. Advise the settings to ensure the problem is with the customer of the printer and not with the printer or application problem with the...
Page 120 Troubleshooting Procedure Step Check Check the wiring harness to the Paper Size Replace the Replace in the Sensor for damage or defects. wiring harness. following order: Is the wiring harness defective? Paper Size Sensor Engine Controller Board or LTA Controller Board.
Page 121: Missing Bands, Voids Or Streaks In A Single Color Or All Colors Parallel To The Leading Edge Of The Paper (Scan Direction)
Missing Bands, Voids or Streaks in a Single Color or All Colors Parallel to the Leading Edge of the Paper (Scan Direction) There are areas of the image that are extremely light or missing entirely. These missing areas form wide bands that run along the page parallel to the leading edge of the paper.
Page 122: Missing Bands, Voids Or Streaks In A Single Color Or All Colors In The Direction Of Paper Travel (Process Direction)
Missing Bands, Voids or Streaks in a Single Color or All Colors in the Direction of Paper Travel (Process Direction) There are areas of the image that are extremely light or are missing entirely. The missing areas form bands that run along the page from the leading edge to the trailing edge in the direction of paper travel.
Page 123 Troubleshooting Procedure (cont'd.) Step Check Swap the Imaging Unit of the problem color Replace the Go to step [7]. with any other Imaging Unit. defective Imaging Unit. Note: Remove the keys before swapping. Print a Solid Fill Test Pattern to check for defects.
Page 124: Dark Streaks In A Single Color Or All Colors Parallel To The Leading Edge Of The Paper
Dark Streaks in a Single Color or All colors Parallel to the Leading Edge of the Paper There are dark lines running parallel with the leading edge of the print. Process 7300-037 Troubleshooting Procedure Step Check Print the Color Test Pages. Replace the Go to step [2].
Page 125: Dark Streaks In A Single Color Or All Colors In The Direction Of Paper Travel
Dark Streaks in a Single Color or All Colors in the Direction of Paper Travel .There are dark lines running along the page in the direction of paper travel from the leading edge to the trailing edge This is generally due to fuser, paper path roller and/or exit guides contaminated with toner debris.
Page 126 3-110 Phaser 7300 Color Printer Service Manual...
Page 127: Test Prints, Adjustments, And Nvram Resets
Test Prints, Adjustments, and NVRAM Resets This section includes test prints, adjustments, calibrations and resets produced by the printer. The topic "Print-Quality Problems" on page 3-79 discusses solutions to problems revealed in the test prints. Test Prints A variety of test prints are available to aid in determining the quality of output from the printer and to assist in troubleshooting print-quality problems.
Page 128: Test Print Samples
Test Print Samples Analyzing the 100% Solid Fill Pages S7300-174 This print consists of 6 pages,100% solid fill in CMYK, Blue and Green. Things to look for on the 100% Solid Fill: Wrinkling ■ Creases ■ Roller marks ■ Scratches ■...
Page 129: Analyzing The Color Test Pages
Analyzing the Color Test Pages S7300-175 This print consists of 6 pages, 25% fill in CMYK and a 100% solid fill red. Things to look for: Repeating defects or banding ■ Missing Color(s) ■ Streaks ■ Voids ■ Consistent fills in each primary color. Each color should be consistent across the width of the page with no voids.
Page 130: Analyzing The Ps Pattern A Print
Analyzing the PS Pattern A Print 8 mm P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 P 7300 Test Pattern A 600 x 600 Test Pattern A 600 x 600 Abc Defg Hijk...
Page 131: Analyzing The 100% Color Stripe Pattern
Analyzing the 100% Color Stripe Pattern S7300-96 The 100% Color Stripe Pattern consists of 100% solid fills of the primary colors (cyan, magenta, yellow, and black) and the secondary colors (red, green, and blue). This print is found in the hidden service menu. Things to look for: Consistent fills in each primary color.
Page 132: Automatic Density Control (Adc) Calibration Procedure
Automatic Density Control (ADC) Calibration Procedure To insure optimal print quality, each color image must be predictable and repeatable. Therefore, the print engine must know how much toner to use to create the proper color density. The ADC sensor is built into the middle of the color registration sensor assembly.
Page 133 2. Calibration: Scroll to and press OK. Execute Density Calibration The printer will perform the calibration, then report whether the Density Control Calibration Passed Failed If the procedure fails, repeat the calibration routine. If the procedure passes, no further calibration is required. Test Prints, Adjustments, and NVRAM Resets 4-117...
Page 134: Automatic Thickness Sensor (Ats) Calibration Procedure
Automatic Thickness Sensor (ATS) Calibration Procedure The thickness of media being printed on can affect print-quality. The Phaser 7300 printer has the ability to measure the thickness of print media and adjust the fuser temperature and print speed accordingly. This procedure is part of the ATS sensor disassembly/reassembly procedure. The Anvil “adjustment”...
Page 135 After the anvil is properly adjusted, tighten the screw and feed the transparency the rest of the way through the registration roller to remove it. After installing the Pickup Plate and Cover Assemblies, verify the sensor indicator is in the correct position as shown below. If not, use the adjustment gear to raise or lower the indicator to the correct position.
Page 136 On the front panel, select Execute Thickness Calibration press OK. The printer indicates that it is ready to run the calibration and picks 3 consecutive sheets of media from the MPT, using them as a reference thickness. After the reference is set, the printer picks and measures the fourth sheet to test the calibration.
Page 137: Color Calibration
Color Calibration Note: Color Calibration and Margin Calibration procedures are found under the normal customer menu and not in service diagnostics. Color calibration procedures adjust the printer for optimal color output. Color settings may need adjustment during initial printer setup or when toners and imaging units are replaced.
Page 138: Resetting Nvram
Resetting NVRAM Resetting NVRAM returns all the Image Processor Board NVRAM-stored parameters to their factory default values. You can reset the PostScript NVRAM using the Customer Menu or the Service Diagnostics Menu. PostScript NVRAM Resets Restore Factory Settings (Color) You can reset settings for density and color balance to the factory-default values. From the Main Menu, highlight and press OK.
Page 139: Reset Calibrations (Color And Margins)
Reset Calibrations (Color and Margins) From the Main Menu, highlight and press OK. Support Highlight and press OK. Improve print-quality Highlight and press OK to reset the color and Reset Calibrations NOW margins settings to factory defaults. Resetting Job Defaults Resetting the job defaults resets the following: paper source, print-quality mode, 2-sided printing, image smoothing and TekColor corrections to their default values.
Page 140: Resetting Network Setup Values To Default
Note: Print a Configuration Page to provide a reference of the current network settings prior to using any of the following resets. Resetting Network Setup Values To Default Resetting the network setup values resets the TCP/IP address, TCP/IP address menu settings (gateway, broadcast, etc.), CentreWare IS, EtherTalk, Netware, set IPX frame type, IPP and Ethernet speed to their default values.
Page 141: Cleaning And Maintenance
Cleaning and Maintenance Whenever you check, service, or repair a printer, you should perform the following procedures. Cleaning the printer, as outlined in the following steps, insures proper operation of the printer and reduces the probability of having to service the printer in the future.
Page 142: Service Preventive Maintenance Procedures
Service Preventive Maintenance Procedures Cleaning Periodically clean the inside and outside of the printer with a soft cloth and toner vacuum when necessary. Contacts Contacts can be cleaned with a standard pencil eraser or a soft brush and toner vacuum cleaner. Cleaning the LED Lens Caution: Do not touch the terminals of the Drum Contacts, the LED Head lens, or the LED Head connector block.
Page 143: Cleaning The Pick And Feed Rollers
Cleaning the Pick and Feed Rollers When mis-picks occur, clean the pick and feed rollers, registration rollers A, and registration rollers B. Caution: The rollers should be cleaned with a clean, dry, lint-free cloth to avoid damage. Cleaning the ADC Sensor Prints producing the wrong colors can be the result of dirt, debris or toner build up on the ADC Sensor or Color Chip.
Page 144 5-128 Phaser 7300 Color Printer Service Manual...
Page 145: Fru Disassembly
FRU Disassembly This section contains the removal and replacement procedures for selected parts of the printer according to the Field Replaceable Units (FRUs) Parts List. Not all Replacement Procedures are included in this Service Manual. In most cases, to reinstall a part, simply reverse the Removal Procedure shown. In some instances, the Replacement Procedure is included, because it may contain special steps.
Page 146 Registration Motor Assembly (PL 5.1.21)..............6 - 174 Auto Thickness Sensor (ATS) - Pickup Cover Assembly (PL 5.1.25) and Pickup Plate Assembly (PL 5.1.24)................6 - 175 ATS Anvil (not spared, part of Registration Roller A)........... 6 - 176 Registration Roller Assembly A (PL 5.1.22) and Drive Gear (PL 5.1.26) ..... 6 - 177 Registration Roller Assembly B (PL 5.1.16) ..............
Page 147: Orientation Of The Printer
Orientation of the Printer Left Back Front Right S7300-148 General Notes on Disassembly Preparation BEFORE you begin any disassembly procedure: Switch OFF the printer power and DISCONNECT the power cord. Remove the Imaging Units and protect them from exposure to light by covering them with a light-proof bag or placing them in a light-tight container.
Page 148: Work Notes
Work Notes Note: Many parts are secured by plastic tabs. DO NOT over-flex or force these parts. Do not over-torque the screws threaded into plastic parts. When re-inserting a screw into plastic, rotate the screw backwards until the threads match, then tighten the screw. Caution: Always use the correct type and size screw.
Page 149: Disassembly Procedures
Disassembly Procedures Top Cover (PL 1.1) Remove the Image Processor Board (see pg. 6-142). Remove the Rear Cover (see pg. 6-135). Remove the 10 B screws securing the top cover to the Top Cover Inner Frame (item #1). Note: The screws circled in the illustration are difficult to locate, one is positioned behind cables.
Page 150: Front Panel (Pl 4.1) And Front Panel Harness (Pl 4.2)
Front Panel (PL 4.1) and Front Panel Harness (PL 4.2) Remove the Top Cover (see pg. 6-133). Carefully separate the Front Panel from the Top Cover by releasing the tabs. Lift the Front Panel and disconnect the wiring harness (item #1) from the back of the panel.
Page 151: Rear Cover (Pl 1.14)
Rear Cover (PL 1.14) Remove the Image Processor Board (see pg. 6-142). Remove 3 G screws and 1 B screw from the top of the Rear Cover. Remove 3 G screws from the back of the Rear Cover. Route wiring harnesses out of the slot in the Rear Cover. Note routing for reinstallation.
Page 152: Front Cover (Pl 1.9)
Front Cover (PL 1.9) Remove the Duplex Unit and Tray 1 (see pg. 6-154). Remove 3 B and 1 G screws from the top of the Front Cover. Remove 3 G screws from the lower front of the Front Cover. Lift the Front Cover straight up to remove it from the printer.
Page 153: Side Output Tray (Pl 1.3) And Links (Pl 1.2)
Side Output Tray (PL 1.3) and Links (PL 1.2) Open the Side Output Tray (item #1) approximately 1 inch. Free the end of the Side Output Tray Links (item #2) from the sides of the tray. To free the links from the printer, rotate them up so they are parallel with the cabinet face.
Page 154: Left Side Cover (Pl 1.4)
Left Side Cover (PL 1.4) Remove the Rear Cover (see pg. 6-135). Remove the Front Cover (see pg. 6-136). Remove the Side Output Tray (see pg. 6-137). Remove the 2 B and 2 G screws from the Left Side Cover. Pull the top of the cover out and up to remove.
Page 155: Right Side Cover (Door A) (Pl 1.19)
Right Side Cover (Door A) (PL 1.19) Open the Right Side Cover (Door A) and remove 1 screw securing the link strap (item #2) to the printer frame. Open the right door about 30 . Using a small screwdriver (see callout in the illustration below) push the tab toward the back of the printer to release it from the hinge-pin.
Page 156: Multi-Purpose Tray (Mpt) Pick Assembly (Pl 2.0)
Multi-Purpose Tray (MPT) Pick Assembly (PL 2.0) S7300-151 6-140 Phaser 7300 Color Printer Service Manual...
Page 157: Drive Gear (Pl 2.3)
Remove the Front Cover (see pg. 6-136). Remove the Rear Cover (see pg. 6-135). Remove the Rear Shield Plate (see pg. 6-146). Disconnect the wiring harness for the REG connector from the Engine Controller Board. Remove harnesses from EMI suppressors as needed, but note the routing for reassembly.
Page 158: Image Processor Board (Ip) (Pl 3.6)
Image Processor Board (IP) (PL 3.6) Warning: Switch off power and disconnect the power cord. The Image Processor Board contains static sensitive devices. Caution: Follow proper Electrostatic Discharge (ESD) precautions when handling the Image Processor Board to avoid damaging this devices. Note: If the Image Processor Board is to be replaced, there are several components that must be transferred to the...
Page 159 Replacement Note: After replacing the Image Processor Board, print a Configuration Page to verify printer options. Use the previously printed Configuration Page to restore the printer’s configuration. If a Configuration Page could not be printed, use CentreWare IS or CentreWare DP to restore the settings.
Page 160 Optional Hard Drive (PL 3.5) Warning: Switch off the power and disconnect the power cord. Some portions of the Image Processor Board are highly static sensitive. Follow Electrostatic Discharge (ESD) precautions when handling the board. Avoid touching the Image Processor Board as much as possible to prevent ESD damage.
Page 161 1. Configuration Chip (PL 3.4) 2. NVRAM (PL 3.3) S7300-152 Lift the restraint latch slightly and pull out the configuration chip. Warning: Do not lift the Configuration Chip restraint too far or it will break. Caution: Do not confuse the Configuration Chip with the battery. The battery is soldered to the board and cannot be removed.
Page 162: Rear Shield Plate (Pl 3.1)
Rear Shield Plate (PL 3.1) Remove the Rear Cover (see pg. 6-135). Remove 34 G screws securing the Rear Shield Plate. Remove the Rear Shield Plate. S7300-45 6-146 Phaser 7300 Color Printer Service Manual...
Page 163: Fan Removal
Electrical Card Cage (PL 3.10) and Electrical Cage Fan (PL 3.9) Fan Removal Remove the Rear Cover (see pg. 6-135). Remove the Rear Shield Plate (see pg. 6-146). Disconnect the fan harness from the Engine Controller Board. Remove 2 screws and the spacers securing the fan to the Electrical Card Cage. Remove the Electrical Cage Fan.
Page 164: Phaser 7300 Color Printer Service Manual
Remove the 3 G and 1 B screws securing the EMI shield (covering the ribbon cables) from the top of the Electrical Card Cage. Note: Tape the open side of the shield to prevent cables from falling out. Note: When replacing the power wiring harness, route the harness under the EMI shield instead of with the other ribbon cables.
Page 165: Print Engine Controller Board (Pl 3.8)
Print Engine Controller Board (PL 3.8) Note: If replacing the Engine Controller Board, transfer the socketed, 8-pin EEPROM (PL 3.7) (item #1) from the old board to the new board. Caution: Follow proper Electrostatic Discharge (ESD) precautions. Remove the Image Processor Board (see pg. 6-142). Remove the Rear Cover (see pg.
Page 166: Top Cover Inner Frame (Pl 4.16)
Top Cover Inner Frame (PL 4.16) Front Damper (PL 1.8), Rear Damper (PL 1.11), Top Cover Hinge Spring, Front (PL 1.5), Top Cover Hinge Spring, Rear (PL 1.7) Top Cover Hinge Shaft (PL 1.6) S7300-154 Remove the Top Cover (see pg. 6-133). Remove the Left-side Cover (see pg.
Page 167 Remove the 4 G and 4 B screws securing the Top Shield Plate to the Electrical Card Cage and remove. Remove 5 screws securing the Top Cover Rear Damper (item #1). Tilt the top cover forward slightly and remove the damper. Disconnect all 9 LED flat wiring harnesses from the Engine Controller Board.
Page 168: Toner Sensor Board (Pl 4.19)
Toner Sensor Board (PL 4.19) Remove the Top Cover (see pg. 6-133). From the underside of the Top Cover Inner Frame, disconnect the 4 LED power harnesses from the Toner Sensor Board. Close the Top Cover Inner Frame. Remove 3 B screws securing the Toner Sensor Board. Rotate the board to expose the underside of the board.
Page 169: Toner Cartridge Sensor Actuators (Pl 4.18)
Toner Cartridge Sensor Actuators (PL 4.18) Remove the Toner Sensor Board (item #3) and LED Harnesses (item #2) (see pg. 6-152). Rotate the board up to expose the component side of the board. From the underside of the Top Cover Inner Frame, use a small screwdriver to carefully push up the arms of the actuator until they pop free.
Page 170: Duplex Unit Assembly (Pl 1.15)
Duplex Unit Assembly (PL 1.15) Note: The Duplex Unit and Tray 1 are interlocked. Pull out the Duplex Unit and Tray 1 together. On the right side locate the release lever (next to the guide pin) and pull forward to release the Duplex Unit from Tray 1.
Page 171: Front Chassis Fan (Pl 5.2.4)
Front Chassis Fan (PL 5.2.4) Remove the Front Cover (see pg. 6-136). Remove the Duplex Unit and Tray 1 (see pg. 6-154). Remove the Front Shield Plate, 5 G screws and 3 B screws. Disconnect the Front Power Supply Fan’s wiring harness (item #1) from the Low Voltage Power Supply Board.
Page 172: Printer Unit Chassis (Pl 5.1.14)
Printer Unit Chassis (PL 5.1.14) Remove the Fuser and the Transfer Unit. Remove the Image Processor Board (see pg. 6-142). Remove the Rear Cover (see pg. 6-135). Remove the Front Cover (see pg. 6-136). Remove the Left Side Cover (see pg. 6-138). Remove the 5 G and 2 B screws securing the Left Side Shield Plate and remove the plate.
Page 173 Note: When replacing the power wiring harness, route the harness under the EMI shield instead of with the other ribbon cables. Disconnect the following top cover intermediate power connectors and clear them from the fan duct retainer: Toner Sensor Board connector ■...
Page 174 SHUTTER HOPFF FCOVER FRPUCL POWER DUPLEX PSIZE HVOLT HOPLIFT S7300-158 Diagram of Engine Controller Board connectors to aid in removal. 6-158 Phaser 7300 Color Printer Service Manual...
Page 175 Disconnect and label the following connectors from the Engine Controller Board: The REG, FSENS, RSNS and JODEN connectors. ■ The Fuser Exit Sensor connector (Red-Black-Blue wire) located immediately ■ above the FSENS connector. The Shutter Solenoid connector (SHUTTER). ■ The Registration Clutch connector (RCL). ■...
Page 176 G big G big G big G big S7300-157 Note: 1 G screw is located in the channel at the back, left side of the printer. Remove 12 screws securing the Printer Unit Chassis to the frame, 4 GB screws 4 G and 4 B screws.
Page 177 Lift each corner carefully to make certain the chassis is free. Elevate the Printer Unit Chassis from the printer frame and place a ream of paper or large screwdriver handle between the chassis and frame. Placing the chassis on these blocks creates a space between the chassis and the frame so that the Low Voltage Power Supply Fan connector is accessible.
Page 178: Rear Power Supply Fan (Pl 5.1.31)
Rear Power Supply Fan (PL 5.1.31) Remove the Printer Unit Chassis (see pg. 6-156). Note: Make sure that the Low Voltage Power Supply Fan connector is on before reassembling the chassis. Remove 1 screw securing the fan to the fan duct. Slide the Rear Power Supply Fan out of the duct, 2 screws secure the duct in place S7300-156 Caution: When replacing the fan, note the outward air flow...
Page 179: Entrance Sensor Board (Pl 5.1.17)
Entrance Sensor Board (PL 5.1.17) Remove the Multi-Purpose Tray (see pg. 6-140). Remove the Printer Unit Chassis (see pg. 6-156). Turn the chassis upside-down and remove the Registration Roller B Assembly (see pg. 6-178). Remove the spring loaded Registration Entrance Sensor Actuator (see pg. 6-170). Note: Note the orientation of the actuator’s spring for reassembly.
Page 180: Front Plate Assembly (Pl 5.2.3)
Front Plate Assembly (PL 5.2.3) Remove the Printer Unit Chassis (see pg. 6-156). Remove 2 screws from the Front Power Supply Fan. Let the fan rest on the front of the lower plate. Disconnect the Front Chassis Fan from the front of the low-voltage power supply board (item #1).
Page 181: High Voltage Power Supply (Pl 5.2.9)
High Voltage Power Supply (PL 5.2.9) Warning: Switch off the power and disconnect the power cord. To avoid electrical shock, avoid touching the contacts of capacitors that may have retained high voltage charges. Remove the Printer Unit Chassis (see pg. 6-156). Disconnect CN1 from the High Voltage Power Supply.
Page 182: Low Voltage Power Supply (Pl 5.2.12)
Low Voltage Power Supply (PL 5.2.12) Remove the Printer Unit Chassis (see pg. 6-156). Unplug connectors CN1, CN2, CN3 and AC-IN from the Low Voltage Power Supply. Disconnect the AC power switch wiring harness interconnect. Remove the 8 B screws securing the Low Voltage Power Supply to the printer. Remove the Low Voltage Power Supply.
Page 183: Tray 1 Pick And Feed Rollers (Pl 6.1.2) (Set Of 3
Tray 1 Pick and Feed Rollers (PL 6.1.2) (set of 3 interchangeable rollers), Torque Limiter (PL 6.1.4), and Bearing, One-Way, Feed Roller (PL6.1.3) Remove Tray 1. Reach into the cavity and release the locking tab on the front end of the feed rollers.
Page 184: Paper Size Sensor Board (Pl 6.1.1)
Paper Size Sensor Board (PL 6.1.1) Remove Tray 1. Reach in through the printer cavity left by tray 1 and disconnect the ribbon cable attached to the Paper Size Sensor Board. Remove the 4 G screws securing the Paper Size Sensor Board to the printer. Remove the Paper Size Sensor Board.
Page 185: Main Feeder Assembly (Pl 6.1.6)
Main Feeder Assembly (PL 6.1.6) Remove Tray 1. Remove the Rear Cover (see pg. 6-135). Remove the Right Cover (Door A) (see pg. 6-139). Disconnect the 8 wiring connectors leading to the Main Feeder Assembly. There are 5 intermediate connectors, and 3 additional connectors that are brown, black and red.
Page 186: Registration Entrance Sensor Actuator (B) (Pl 5.1.15)
Registration Entrance Sensor Actuator (B) (PL 5.1.15) Remove the Printer Unit Chassis (see pg. 6-156). Turn the Printer Unit Chassis upside-down and carefully squeeze the actuator’s two locking tabs to remove the sensor. Note: Be careful not to lose the spring. S7300-64 6-170 Phaser 7300 Color Printer Service Manual...
Page 187: Mpt Entrance Sensor Actuator (A) (Pl 5.1.19) And Transfer Belt Entrance Sensor Actuator (Pl 5.1.18)
Transfer Belt Entrance Sensor Actuator (PL 5.1.18) MPT Entrance Sensor Actuator (PL 5.1.19) Remove the Printer Unit Chassis (see pg. 6-156). Remove the Registration Entrance Sensor Actuator (see pg. 6-170). Remove the Entrance Sensor Board (see pg. 6-163). From the bottom, squeeze the two locking tabs securing the MPT Entrance Sensor Actuator (item #1) and remove the actuator.
Page 188: Top/Side Output Solenoid (Pl 5.1.6) And Duplex Gate Solenoid (Pl 5.1.8)
Top/Side Output Solenoid (PL 5.1.6) and Duplex Gate Solenoid (PL 5.1.8) Remove the Front Cover (see pg. 6-136). Remove the Front Shield Plate. Free the Front Power Supply Fan and let it hang. Disconnect the wiring harness from the Top/Side Output Solenoid (item #1). Disconnect the wiring harness from the Duplex Gate Solenoid (item #2).
Page 189: Registration Clutch (Pl 5.1.20)
Registration Clutch (PL 5.1.20) Remove the Rear Shield Plate (see pg. 6-146). Disconnect the RCL connector from the Engine Controller Board. Remove 1 screw securing the ground strap to the motor bracket. Remove the e-ring (item #1) securing the clutch to the registration shaft B. Remove the Registration Clutch (item #2).
Page 190: Registration Motor Assembly (Pl 5.1.21)
Registration Motor Assembly (PL 5.1.21) Remove the Rear Cover (see pg. 6-135). Remove the Rear Shield Plate (see pg. 6-146). Remove the Registration Clutch (see pg. 6-173). Remove 1 small G and 3 B screws securing the motor to the bracket (item #1). Disconnect the harness to the Registration Motor Assembly.
Page 191: Auto Thickness Sensor (Ats) - Pickup Cover Assembly (Pl 5.1.25) And Pickup Plate Assembly (Pl 5.1.24)
Auto Thickness Sensor (ATS) - Pickup Cover Assembly (PL 5.1.25) and Pickup Plate Assembly (PL 5.1.24) Note: The ATS 4-Sheet Calibration Procedure, (see pg. 4-118), needs to be performed after reinstalling. Remove the Front Cover (see pg. 6-136) Remove the Rear Cover (see pg. 6-135) Remove the MPT Pick Assembly (see pg.
Page 192: Ats Anvil (Not Spared, Part Of Registration Roller A)
ATS Anvil (not spared, part of Registration Roller A) Note: The ATS Anvil and 4-Sheet Calibration Procedures, (see pg. 4-118), need to be performed after reinstalling. Remove the Registration Roller (A) Assembly (see pg. 6-177) Remove 1 screw securing the Anvil and remove the Anvil. S7300-164a 6-176 Phaser 7300 Color Printer Service Manual...
Page 193: Registration Roller Assembly A (Pl 5.1.22) And Drive Gear (Pl 5.1.26)
Registration Roller Assembly A (PL 5.1.22) and Drive Gear (PL 5.1.26) Remove the Transfer Unit. Remove the Rear Shield Plate (see pg. 6-146). Remove the MPT Pick Assembly (see pg. 6-140). Remove the ATS Anvil (see pg. 6-176). Remove the 4 B screws securing the Registration Roller Assembly A. Lift the roller assembly and remove.
Page 194: Registration Roller Assembly B (Pl 5.1.16)
Registration Roller Assembly B (PL 5.1.16) Remove the Printer Unit Chassis (see pg. 6-156). Turn the Printer Unit Chassis upside-down and remove the 4 B screws securing Registration Roller Assembly B to the underside of the Printer Unit Chassis. Lift the roller up and toward the front of the printer and remove. Front of Printer S7300-164c...
Page 195: Duplex Guide Assembly (Pl 5.1.2)
Duplex Guide Assembly (PL 5.1.2) Grasp the Duplex Guide Assembly and pull the assembly straight up and out of the printer. Note: Be careful not to lose the springs when removing the Duplex Guide Assembly. Leave the springs in the printer. S7300-165 FRU Disassembly 6-179...
Page 196: Fuser Latching Handle (Front) (Pl 5.1.4)
Fuser Latching Handle (Front) (PL 5.1.4) Remove the Front Cover (see pg. 6-136). Remove the Fuser. Release the fuser latching handle spring (item #2). Remove 2 B screws securing the Fuser Latching Handle (item #1) to the Printer Unit Chassis and remove the latch. S7300-73 6-180 Phaser 7300 Color Printer Service Manual...
Page 197: Fuser Latching Handle (Rear) (Pl 5.2.1)
Fuser Latching Handle (Rear) (PL 5.2.1) Remove the Printer Unit Chassis (see pg. 6-156). Release the fuser latching handle spring (item #3). Remove the e-ring (item #2) securing the Rear Fuser Latching Handle to its shaft. Slide the rear Fuser Latching Handle (item #1) off the shaft to remove. S7300-74 FRU Disassembly 6-181...
Page 198: Fuser Exit Roller (Pl 5.1.1)
Fuser Exit Roller (PL 5.1.1) Remove the Front Cover (see pg. 6-136). Remove the Rear Shield Plate (see pg. 6-146). Remove the Rear Power Supply Fan and Duct (see pg. 6-162). Remove the Front Chassis Fan (see pg. 6-155). Remove the Electrical Card Cage (see pg. 6-147). Lift and remove the Duplex Guide Assembly (see pg.
Page 199: Fuser Exit Sensor Assembly (Pl 5.1.3)
Fuser Exit Sensor Assembly (PL 5.1.3) Remove the Fuser Exit Roller (see pg. 6-182). Remove the Print Unit Chassis (see pg. 6-156). From the Engine Controller Board, remove the connector to the Fuser Exit Sensor Assembly (PARTTEMP). Lift and remove the Duplex Exit Gate. Remove 1 B screw securing the Fuser Exit Sensor Assembly.
Page 200: Eject Guide Assembly (Pl 4.8)
Eject Guide Assembly (PL 4.8) Remove the Top Cover Inner Frame (see pg. 6-150). Remove 7 B screws securing the Eject Guide Assembly to the Top Cover Inner Frame. Remove the assembly. S7300-77 6-184 Phaser 7300 Color Printer Service Manual...
Page 201: Stack Full Sensor (Pl 4.5) And Actuator (Pl 4.4)
Stack Full Sensor (PL 4.5) and Actuator (PL 4.4) Remove the Top Cover (see pg. 6-133). Disconnect the cable from the Stack Full Sensor. Release the 4 locking tabs securing the Stack Full Sensor (item #2), and remove the sensor and actuator (item #1). S7300-78 FRU Disassembly 6-185...
Page 202: Back Plate Assembly W/Drive Gears (Pl 5.2.11) And Imaging Unit Motors (Pl 5.2.13)
Back Plate Assembly w/Drive Gears (PL 5.2.11) and Imaging Unit Motors (PL 5.2.13) Remove the Printer Unit Chassis (see pg. 6-156). Remove the 5 G screws securing the Back Plate Assembly to the frame. Disconnect the wiring harnesses from all four Imaging Unit Motors. Lift the front of the Back Plate Assembly about 2 cm (3/4 in.) and carefully guide the ribbon cable through the assembly as you lift it from the chassis to remove.
Page 203 Transfer Unit Motor Assembly (PL 5.2.2) (contains Fuser Motor) Remove the Print Unit Chassis (see pg. 6-156). Remove 2 G screws securing the Fuser Motor and Transfer Unit Motor Assembly to the chassis and tilt the assembly into the chassis. Disconnect the two in-line connectors (item #2) leading to the Fuser Motor and Transfer Unit Motor Assembly and remove the motors.
Page 204: Color Registration Plate Shutter (Pl 5.1.11)
Color Registration Plate Shutter (PL 5.1.11) Note: The Color Registration Plate Shutter contains the “Color Chip” and ADC Tag number. Perform the ADC Calibration (see pg. 4-116) if you replace the shutter. Carefully remove the shutter spring through the opening in the plate shutter. Open the shutter plate to the full open position.
Page 205: Color Registration Sensor Assembly (Pl 5.1.10)
Color Registration Sensor Assembly (PL 5.1.10) Note: The Color Registration Sensor Assembly contains the ADC Sensor. If replacing with a new assembly, write down the tag number located on the Color Registration Shutter Plate and perform the ADC Calibration Procedure (see pg. 4-116).
Page 206: Color Registration Shutter Solenoid (Pl 5.1.13)
Color Registration Shutter Solenoid (PL 5.1.13) Remove the Printer Unit Chassis (see pg. 6-156). Remove the Color Registration Plate Shutter (see pg. 6-188). Disconnect the Color Registration Shutter Solenoid’s in-line connector. Release the solenoid harness (item #2) from all cable clamps. Remove the screw securing the solenoid (item #1) to the Printer Unit Chassis to remove the solenoid.
Page 207: Led Head 600 Dpi (Pl 4.9A) And Led Head Holder (Pl 4.9B)
LED Head 600 dpi (PL 4.9a) and LED Head Holder (PL 4.9b) Disconnect the LED Head y power harness from the Toner Sensor Board. Carefully disconnect both cables (item C) from the LED Head. Note the cable routing for reassembly. With small screwdriver, carefully release the LED Head from the LED Head Holder.
Page 208: (Imaging Unit) Drum Contact Assembly (Pl 5.1.27)
(Imaging Unit) Drum Contact Assembly (PL 5.1.27) Use a small screwdriver to carefully pry the Drum Contact Assembly from the Printer Unit Chassis. S7300-85 Caution: When reinstalling, ensure the springs are straight and not bent. 6-192 Phaser 7300 Color Printer Service Manual...
Page 209: Field Replaceable Units (Fru) Parts List
(FRU) Parts List This chapter provides a list of field replaceable units (FRU’s) for the printer. Changes to Xerox parts are made to accommodate improved components as they become available. It is important when ordering parts to include the following information: Component part number.
Page 210: Pl 1.0 - Covers
PL 1.0 - Covers (PL 2.0) 1 (PL 6.1) S7300-100a 7-194 Phaser 7300 Color Printer Service Manual...
Page 211 FRU Parts List 1.0 - Covers Part Number Name / Description 116-0998-00 Top Cover 116-1061-00 Side Output Tray Links 116-1083-00 Side Output Tray 116-1006-00 Left Side Cover 116-1051-00 Top Cover Hinge Spring - Front 116-1053-00 Top Cover Hinge Shaft 116-1052-00 Top Cover Hinge Spring - Rear 116-1055-00 Top Cover Damper - Front...
Page 212: Pl 2.0 - Mpt Pick Assembly
PL 2.0 - MPT Pick Assembly S7300-101 7-196 Phaser 7300 Color Printer Service Manual...
Page 213 FRU Parts List 2.0 - MPT Pick Assembly and Components Part number Name / description 116-1017-00 MPT Tray 012E12690 MPT Links (Front and Rear) Gear Kit MPT Drive Gear 116-1025-00 Top Cover Interlock Switch 116-1561-00 MPT Pick Assembly (with 5, 7, 8, 9) not spared MPT Roller Home Sensor (part of MPT Pick Assembly)
Page 214: Pl 3.0 - Printer Control Components Boards
PL 3.0 - Printer Control Components Boards " ' & 7300-105 7-198 Phaser 7300 Color Printer Service Manual...
Page 215 FRU Parts List 3.0 - Printer Control Components - Boards Part number Name / Description 116-1060-00 Rear Shield Plate IC Memory; CMOS; SDRAM; 156-4838-00 64MB; PC133; SODIMM 156-4837-00 128MB; PC133; SODIMM; 156-4663-00 256MB; PC133; SODIMM; NVRAM Configuration Chip: 163-1481-00 Base 163-1484-00 Network Upgrade 650-4240-00...
Page 216: Pl 4.0 - Top Cover Inner Frame
PL 4.0 - Top Cover Inner Frame 12, 13, 14, 15 S7300-102 7-200 Phaser 7300 Color Printer Service Manual...
Page 217 FRU Part List 4.0 - Top Cover Inner Frame Components Part number Name / Description 333-4383-00 Front Panel Assembly Harness Kit Front Panel Harness 116-1054-00 Top Output Eject Sensor Flag Kit Stack Full Sensor Actuator 116-1000-00 Stack Full Sensor Hardware Kit Exit Rollers 116-1057-00 Top Output Tray...
Page 218: Pl 5.1 - Printer Unit Chassis (1 Of 2)
PL 5.1 - Printer Unit Chassis (1 of 2) (2x) (4x) S7300-103 7-202 Phaser 7300 Color Printer Service Manual...
Page 219 FRU Part List 5.1 - Printer Unit Chassis (1 of 2) Part number Name / Description 116-1022-00 Fuser Exit Roller 116-1019-00 Duplex Guide Assembly 116-1587-00 Fuser Exit Sensor Assembly 003E55690 Fuser Latching Handle (Front) Hardware Kit Fuser Latch Handle Spring 116-1021-00 Top/Side Output Solenoid Hardware Kit...
Page 220: Pl 5.2 - Printer Unit Chassis (2 Of 2) And Power Supplies
PL 5.2 - Printer Unit Chassis (2 of 2) and Power Supplies "N " & 7300-104 7-204 Phaser 7300 Color Printer Service Manual...
Page 221 FRU Parts List 5.2 - Printer Unit Chassis (2 of 2) and Power Supplies Part number Description 003E55700 Fuser Latching Handle (Rear) 116-1556-00 Transfer Unit Motor Assembly 116-1029-00 Front Plate Assembly 116-1215-00 Front Chassis Fan 116-1034-00 LVPS Insulator 116-1067-00 Duplex Exit Paper Guide 116-1033-00 HVPS Insulator 116-1557-00...
Page 222: Pl 6.1 - Paper Tray 1
PL 6.1 - Paper Tray 1 (2x) (3x) S7300-106 7-206 Phaser 7300 Color Printer Service Manual...
Page 223 FRU Parts List 6.1 - Paper Tray 1 Part number Name / Description 116-1007-00 Paper Size Sensor Board with Ribbon Harness 116-1062-00 Paper Feed Roller Kit (3 Rollers) 116-1216-00 Bearing, One-Way, Feed Roller 116-1562-00 Torque Limiter, Retard Roller 116-1065-00 Door A Interlock Switch 116-1553-00 Main Feeder Assembly 116-1555-00...
Page 224: Pl 6.2 - Lower Tray Deck & Lower Tray Assembly (Trays 2, 3, 4, 5)
PL 6.2 - Lower Tray Deck & Lower Tray Assembly (Trays 2, 3, 4, 5) 99 (1-9) 7300LTA 7300LTD (4x) S7300-107 7-208 Phaser 7300 Color Printer Service Manual...
Page 225 FRU Parts List 6.2 - Lower Tray Deck and Lower Tray Assembly (Trays 2, 3 4, 5) Part number Name / Description 119-6402-00 Lower Tray Deck (LTD) w/ Trays 119-6401-00 Lower Tray Assembly (LTA) 116-1040-00 LTA Top Connector 116-1044-00 LTA Rear Cover 116-1581-00 LTA Controller Board 116-1047-00...
Page 226: Kits
Kits Hardware Kit Part number Name / Parts Included 116-1038-01 Hardware Kit LED Assembly Spring Kit Fuser Exit Roller Bushing (Front) Fuser Exit Roller Bushing (Back) Registration Shutter Spring Fuser Latch Handle Springs Screw (T3x8) Screw (T3x10) Screw (T4x10) Screw (M2x8) Screw (M3x6) Screw (M3x8) Screw (M4x8)
Page 227: Harness Kit
Harness kit Part number Name / Parts Included 116-1590-00 Harness Kit Front Panel Harness High Voltage Harness Fuser Motor, Transfer Unit Motor MPT Entrance Sensor, Entrance Sensor Board, OHP Sensor Tray 1 Paper Empty Sensor, Paper Low Sensor Tray Lift Motor Tray 1 Paper Feed Sensor Color Registration Sensor and ADC Sensor Imaging Unit Sensor Board...
Page 228: Flag Kit
Flag Kit Part number Name / Parts Included 116-1036-01 Flag Kit Stack Full Sensor Actuator Toner Sensor Actuator (qty of 4) Exit Sensor Actuator Registration Entrance Sensor A Actuator Registration Entrance Sensor B Actuator Registration A Exit Sensor Actuator Tray 1 Paper Low Actuator Tray 1 No Paper Sensor Actuator Transfer Unit Waste Full Sensor Actuator 7-212...
Page 229: Supplies And Accessories
Supplies and Accessories Toner Vacuum and Accessories Description Part Number Vacuum, Toner, 110V 003-1496-00 Vacuum, Toner, 220V 003-1497-00 Filter for Toner Vacuum, Type II 003-1498-00 Packaging Description Part Number Repackaging Kit, Phaser 7300 065-0617-00 Repackaging Kit, Phaser 7300 065-0621-00 7300 Shipping Box 004-5229-00 Replacement Shipping Box (LTD) 004-4523-00...
Page 230: Customer Replaceable Consumables
Customer Replaceable Consumables 7300-30 Consumable Part Number Fuser 110 Volt 016-1998-00 220 Volt 016-1999-00 Transfer Unit 016-2000-00 Toner Cartridges: Standard Capacity Yellow 016-1975-00 Standard Capacity Magenta 016-1974-00 ‘ Standard Capacity Cyan 016-1973-00 Standard Capacity Black 016-1976-00 High Capacity Yellow 016-1979-00 High Capacity Magenta 016-1978-00 High Capacity Cyan...
Page 231: Paper And Media
Paper and Media Phaser Professional Printing Paper Item Size Description Part Number Phaser Premium Color A/Letter (U.S.) 8.5 x 11 in. 500 sheets 016-1368-00 Printing Paper A4 (Metric Letter) 90 g/m (24 lb. bond) 210 x 297 mm 500 sheets 016-1369-00 11 x 17 in.
Page 232 Phaser Color Laser Labels Size Description Part Number A/Letter (U. S.) 100 sheets / 6 labels per sheet 016-1813-00 8.5 x 11 in. (108 lb. label) (3.33 x 4.0 in. labels) A4 (Metric Letter) 100 sheets / 14 labels per sheet 016-1814-00 210 x 297 mm (176 g/m (38.1 x 99.1 mm labels)
Page 233: Cleaning Kit
Phaser Premium Greeting Cards with Envelopes (Size A7) Item Description Part Number A/Letter (U.S.) 25 sheets /envelopes 016-1987-00 8.5 x 11 in. (70 lb.) A4 (Metric Letter) 25 sheets / envelopes 016-1988-00 210 x 297 mm (190 g/m Cleaning Kit Item Description Part Number...
Page 234 7-218 Phaser 7300 Color Printer Service Manual...
Page 235: Theory Of Operation
Theory of Operation Contents Mechanical Process of the Printer ..................8 - 220 Summary of the Printing Process ..................8 - 221 Charging ..........................8 - 222 Exposure ..........................8 - 222 Developing..........................8 - 222 Transfer..........................8 - 223 Fusing ..........................8 - 224 Imaging Unit Cleaning .......................8 - 225 Transfer Unit Cleaning .......................8 - 225 Summary of the Paper Path ....................8 - 226 Paper Fed from Tray 1......................8 - 227...
Page 236: Mechanical Process Of The Printer
Mechanical Process of the Printer S7300-185 8-220 Phaser 7300 Color Printer Service Manual...
Page 237: Summary Of The Printing Process
Summary of the Printing Process The following steps summarize the xerographic print process for the Phaser 7300 Printer. Paper Pick and Transport - For the entire paper path, see page 8 - 226. Charging - DC voltage applies a negative charge to the charge roller and the surface of the imaging unit drum.
Page 238: Charging
Charging DC voltage supplied by the high voltage power supply (HVPS) is applied to the charge roller. The charge roller, through direct contact with the imaging unit, places the negative charge onto the drums surface. Charge Roller ower Supply Drum S7300-131 Exposure Light from the LED heads are applied to the negatively charged surface of the drum.
Page 239: Transfer
The toner cleaning blade scrapes away excessive toner on the developing roller to form a thin film of toner on the surface of the developing roller. The toner is attracted to the latent image on the surface of the drum at the point where the drum is in contact with the developing roller.
Page 240: Fusing
Fusing The toner image transferred to the paper is fused and fixed to the paper through a combination of heat and pressure as the paper passes through the fuser’s upper roller and lower roller. The lower roller is evenly pushed against the upper roller by two end springs.
Page 241: Imaging Unit Cleaning
Imaging Unit Cleaning Toner remaining on the imaging unit, without being transferred to paper, is scraped off by a cleaning blade and collected into the waste toner bin located on the inside of the toner cartridge. Waste toner area leaning blade S7300-136 Transfer Unit Cleaning...
Page 242: Summary Of The Paper Path
Summary of the Paper Path Upper Fuser IU Units and Toner Cartridges Roller Fuser Registration Roller Assy (A) Top Output Tray LED Heads MPT Pick Roller Eject Roller Eject roller Transfer Unit Belt unit Low-voltage power supply High-voltage power supply Lower Fuser Roller Registration...
Page 243: Paper Fed From Tray 1
Paper Fed from Tray 1 The feed motor, rotating in the direction shown, drives the pick and feed rollers, feeding a sheet of paper from the tray. After the leading edge of the paper comes in contact with the registration entrance sensor, the paper moves forward a specified distance.
Page 244: Paper Fed From Optional Trays
Paper Fed from Optional Trays Feed Roller Feed Roller Feed Sensor Feed Roller Tray Feed Clutch Upper tray Hop Sensor Optional paper loading tray Pick Roller Feed Roller Feed Motor S7300-123 8-228 Phaser 7300 Color Printer Service Manual...
Page 245: Paper Fed From The Multi-Purpose Tray
Paper Fed from the Multi-Purpose Tray The hopper-plate is pushed down by the release lever to signalling the MPT roller home position sensor (A). The registration motor rotates in the direction shown, driving the MPT feed roller causing the cam to turn. The cam pushes the release lever allowing the hopper plate to pick the paper from the MPT feed roller.
Page 246: Transfer Unit
Transfer Unit The transfer unit motor turns clockwise driving the transfer unit belt. Inside the transfer unit, a transfer roller is located just under the imaging unit for each color, with the transfer belt sandwiched between them. When the transfer-belt motor and imaging unit motors are activated, they carry the paper on the transfer belt to the fuser.
Page 247: Imaging Unit Up/Down Movement
Imaging Unit Up/Down Movement Rotation and up/down operation of the imaging unit are conducted by a single pulse motor. The main motor rotating counter-clockwise (a) turns lever 1 to the left. As a result, lever 2, supported by lever 1, moves down, lowering the imaging unit.
Page 248: Transfer Unit Arm And Gear Up/Down Movement Of The Imaging Units
Plate Board Spring Imaging Drum Contact S7300-140 Transfer Unit Arm and Gear Up/Down Movement of the Imaging Units Note: The Black Imaging Unit does not move. Gears Transfer Unit S7300-186 8-232 Phaser 7300 Color Printer Service Manual...
Page 249: Fuser And Paper Exit
Fuser and Paper Exit The fuser motor drives the fuser unit and eject rollers. As the fuser motor rotates counter-clockwise (a), it rotates the upper roller, which fixes the toner image on the paper with heat and pressure. At the same time, the four sets of eject rollers rotate to eject the print. The eject route to the left side output tray is selected by a spring-loaded separator gate.
Page 250: Duplex Unit
Duplex Unit When the duplex unit receives instructions from the printer to print on both sides of a sheet of paper, the exit gate (duplex) solenoid opens the exit gate (duplex) after completion of the first side of the print. The path of the paper is switched when roller 1 turns, just as the paper begins to exit, and the paper is retracted back into the printer.
Page 251: Paper Jam Detection
Paper Jam Detection The printer checks for a paper jam when the printer is powered on and during printing. When a paper jam is detected, the printer immediately halts the printing process. Below is a diagram of jam locations within the printer. Media Jams occur in the paper path if the associated sensor does not turn ON within a specified amount of time, meaning the jam occurs prior to reaching the sensor, or if the sensor does not turn OFF within a specified amount of time, meaning the jam...
Page 252: Paper Size Sensing
Paper Size Sensing The position of a multi-slotted plate, at the rear of the paper tray, is set according to the position of the tray’s paper guides. Upon insertion of the tray in the printer, the plate’s four rows activate four switches on the paper size sensor board. The combinations of the slot positions indicate to the paper size sensor board, the size of the paper in the tray.
Page 253: Fuser Temperature Settings
Fuser Temperature Settings Fuser temperature settings utilize the Auto-Thickness Sensor to measure the media weight and adjust the fuser temperature and engine speed. These ranges are approximate and are to be used as a reference point in isolating problems associated with fuser temperature.
Page 254: Cover Open Detection
Cover Open Detection When the top cover or the right cover (Door A) are opened, the interlock switch is deactuated shutting off the +34 volts supplied to the high voltage power supply. The engine controller board receives a signal (CVOPN) indicating the status and reporting the error message “Close Top Cover”...
Page 255: Toner Detection
Toner Detection The used toner amount is detected by counting the printed pixel numbers. The printer starts counting pixels after a “Toner Low” error is received by the printer and stores the count on the engine controller board EEPROM. When the “Toner Empty” condition is met, the consumed amount is set to 100%.
Page 256: Toner Low State
Toner Low State If the stirring bar reaches its highest position and then falls to its lowest position under its own weight because of the absence of toner resistance, the magnet contact time measured is reported as too long and a toner low condition is reported by the printer.
Page 257: Color Registration Detection
Color Registration Detection Reflection-type optical sensors, for detecting color registration, are mounted under the transfer unit, one on the right and one on the left in front of the cleaning blade. A solenoid-activated shutter opens up so the sensors can “see” the transfer unit. On the right and left edges of the belt, an alignment pattern (a series of primary color toner patches) is printed, which the reflection-type optical sensors read to measure the amount of misalignment base on the position of the black toner patch.
Page 258: Customer Replaceable Consumable Detection
Customer Replaceable Consumable Detection The new/replace condition of units is judged on whether a “blown” fuse is detected in the unit. If the fuse of a unit is intact, the unit is recognized as a new one. This determination is made when the printer is turned on and when its cover is closed. Finding a new unit, the printer resets the life counter of the unit and blows (overcurrents) the fuse for version detection.
Page 259 Note: Consumable life is based on letter-size, continuous print at 5% coverage per color. New Toner Cartridges installed on new imaging drums will experience reduced life. Life ratings are based on averages over 2 to 4 toner cartridges. Customer-Replaceable Consumable (CRC) Print Life Fuser 80,000...
Page 260: Printer Components
Printer Components S7300-06 Front Panel - The front panel provides the user interface to the printer. Image Processor Board - The image processor board converts the data from the print jobs into bitmap images. The data passes through the engine controller board, to switch the laser diode on and off during the printing process.
Page 261 Engine Controller Board - The engine controller board synchronizes the print process by controlling the LED head assemblies, motors, fans, sensors, solenoids, clutches and fuser temperatures. The engine controller board also controls the voltages to the imaging units and the print speed to compensate for changes in media and environmental conditions.
Page 262: Engine Controller Board Connectors
Engine Controller Board Connectors SHUTTER HOPFF FCOVER FRPUCL POWER PSIZE DUPLEX HVOLT HOPLIFT S7300-158 Engine Controller Board Connectors Name Connected to... SHUTTER Color registration shutter solenoid HOPFF Registration and tray 1 motor OPTN Toner sensor board BELTHET Fuser and Transfer Motors JOBOFF Top and rear fuser fans, right and left offset solenoids 8-246...
Page 263 Engine Controller Board Connectors (cont'd.) Name Connected to... Imaging Unit Motors FAN1 Card cage fan Registration clutch MPT paper, OHP, liftplate, temp/humidity and thickness sensors RSENS ADC sensor, left and right registration sensor JODEN Imaging unit sensor board PARTTEMP Fuser exit sensor FSENS Entrance sensor board TR1OP...
Page 264: Sensors
Sensors Top Side Output Sensor Paper Eject Rollers Stack Full Sensor Transfer Belt Imaging Units Entrance Sensor Upper Fuser MT Pick Roller Roller Fuser Exit Sensor Belt Registration Cleaning Roller B Transfer Unit Lower Fuser Roller Blade Registration Registration Duplex Duplex Entrance Roller A Entrance...
Page 265: Sensor Location And Function
Sensor Location and Function No. Sensor Function MPT Entrance Sensor Detects incoming paper to determine the timing for switching from hopper to carriage. OHP Sensor Detects the presence or absence of transparency media. MPT Empty Sensor Detects paper present in the MPT. Black Toner Cartridge Sensor Y Yellow Toner Cartridge Sensor Detects full, low, and empty state of toner...
Page 266: Clutches, Motors And Solenoids
Clutches, Motors and Solenoids S7300-08 Part Registration Clutch Registration Motor Transfer Unit Motor Fuser Motor Job Offset Motor Exit Solenoid Duplex Solenoid Color Registration Shutter Solenoid Tray Lift Motor Cyan Imaging Unit Motor Magenta Imaging Unit Motor Yellow Imaging Unit Motor Black Imaging Unit Motor Paper Feed Motor 8-250...
Page 268 JODEN BELTHET Board Sensor Unit Imaging...
Page 269 3. GND Green 2. +5V Black 1. COM(3.8V) Red POWER 3. GND Green 2. +5V Black 1. COM(3.8V) Red 3. GND Green 2. +5V Black 1. COM(3.8V) Red 3. GND Green 2. +5V Black 1. COM(3.8V) Red FAN1 JOBOFF...
Page 270 FEED 22 1 2 TR1OP GEARED...
Page 271 STDUCOV PARTTEMP FSENS RSENS FSNS...
Page 272 STUCK OPTN...
Page 273 COVOPN...
Page 274 POWER OPTN...
Page 275 cable black black cable cable MOTOR cable brown cable cable black Yellow White cable blue cable MAIN1 SNSO Sensor brown cable cable Sensor Lift cable MOTOR blue cable White SNSO MAIN1 cable...
Page 276 10 - 260 Xerox 7300 Printer Service Guide...
Page 277 071-0862-00...

This manual is also suitable for:

7300dx - phaser color laser printer 7300n - phaser color laser printer Tektronix phaser 7300

Xerox 7300B - Phaser Color Laser Printer Service Manual

Table of Contents

General Information

Error Messages and Codes

Troubleshooting

Test Prints, Adjustments, and Nvram Resets

Fru Disassembly

Field Replaceable Units (Fru) Parts List

Theory of Operation

Quick Links

Chapters

Troubleshooting

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Summary of Contents for Xerox 7300B - Phaser Color Laser Printer