Service Manual
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Phaser 3450 Laser Printer Service Manual Warning The following servicing instructions are qualified to do not perform any servicing other than that contained in the operating instructions, unless you are for use by qualified service personnel only. First Printing: July, 2003 071-0866-00 To avoid personal injury, do so.
Phaser 3450 Laser Printer Service Manual Warning The following servicing instructions are qualified to do not perform any servicing other than that contained in the operating instructions, unless you are for use by qualified service personnel only. First Printing: July, 2003 071-0866-00 To avoid personal injury, do so.
Service Manual
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... switch during all posted warning labels. Service Safety Summary General Guidelines Note The material presented here is certified to comply with Laser Product Performance Standards set by way of the grounding conductor in the power cord is a class of laser product that does not emit hazardous laser radiation; Use care when servicing with dangerous voltages and currents. CLASS 1 LASER PRODUCT The Phaser 3450 Laser Printer...
... switch during all posted warning labels. Service Safety Summary General Guidelines Note The material presented here is certified to comply with Laser Product Performance Standards set by way of the grounding conductor in the power cord is a class of laser product that does not emit hazardous laser radiation; Use care when servicing with dangerous voltages and currents. CLASS 1 LASER PRODUCT The Phaser 3450 Laser Printer...
Service Manual
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...Phaser 3450 Laser Printer Rear View 1-6 Main Board 1-7 Service Parts 1-8 Consumables 1-9 Supply Life Counter Behavior 1-10 Printer Specifications 1-11 Physical Dimensions and Clearances 1-11 Functional Specifications 1-12 Electrical Specifications 1-12 Environmental Specifications 1-13 Duplex Printing Media Sizes 1-13 Media and Tray Specifications 1-14 2 Theory of Operation Overview of the Phaser 3450 Laser Printer 2-2 Summary of the Printer 2-6 Duplex Paper Path 2-6 Contents xiii Paper Pick 2-4 Laser Light Intensity Control 2-5 Process Control 2-5 Toner Control 2-5 Fuser...
...Phaser 3450 Laser Printer Rear View 1-6 Main Board 1-7 Service Parts 1-8 Consumables 1-9 Supply Life Counter Behavior 1-10 Printer Specifications 1-11 Physical Dimensions and Clearances 1-11 Functional Specifications 1-12 Electrical Specifications 1-12 Environmental Specifications 1-13 Duplex Printing Media Sizes 1-13 Media and Tray Specifications 1-14 2 Theory of Operation Overview of the Phaser 3450 Laser Printer 2-2 Summary of the Printer 2-6 Duplex Paper Path 2-6 Contents xiii Paper Pick 2-4 Laser Light Intensity Control 2-5 Process Control 2-5 Toner Control 2-5 Fuser...
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... Print Cartridge 2-10 Laser Scan Unit (LSU 2-10 Transfer Roller 2-11 Fuser Assembly 2-11 Paper Feed Drive 2-11 Paper Out Sensor 2-11 Paper Feed Sequence 2-12 Registration Sensor 2-12 Paper Transport 2-12 Fuser Exit Sensor 2-13 Duplex Unit 2-13 3 Error Messages and Codes Introduction 3-2 Servicing Instructions 3-4 Using the Troubleshooting Procedures 3-5 General Notes on Troubleshooting 3-6 Voltage Measurements 3-7 Service Diagnostics 3-8 Service Diagnostic Front Panel Button Descriptions 3-9 Service Diagnostics Menu Map 3-9 Error Messages and Codes Summary Table 3-13 Fuser...
... Print Cartridge 2-10 Laser Scan Unit (LSU 2-10 Transfer Roller 2-11 Fuser Assembly 2-11 Paper Feed Drive 2-11 Paper Out Sensor 2-11 Paper Feed Sequence 2-12 Registration Sensor 2-12 Paper Transport 2-12 Fuser Exit Sensor 2-13 Duplex Unit 2-13 3 Error Messages and Codes Introduction 3-2 Servicing Instructions 3-4 Using the Troubleshooting Procedures 3-5 General Notes on Troubleshooting 3-6 Voltage Measurements 3-7 Service Diagnostics 3-8 Service Diagnostic Front Panel Button Descriptions 3-9 Service Diagnostics Menu Map 3-9 Error Messages and Codes Summary Table 3-13 Fuser...
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...Laser Printer combines a 25 page per -inch (dpi) image quality. The printer supports resolutions of 600 and 1200 dots-per minute monochrome print engine with an image processor supporting PostScript 3, PCL6 (Windows), and KSC5843, and KSSM (DOS) page description languages. Features Max print speed Ltr/Duplex A4/Duplex Memory (Mbytes) Flash Memory (8 Mbytes) Postscript Fonts PCL Fonts Emulation Resolutions Automatic 2-Sided Printing (AutoDuplex) Printer Cart 500-Sheet Feeder Additional 500-Sheet Feeder Ethernet capabilities USB, Parallel Optional Hard Drive Printer Configuration 3450B 3450D...
...Laser Printer combines a 25 page per -inch (dpi) image quality. The printer supports resolutions of 600 and 1200 dots-per minute monochrome print engine with an image processor supporting PostScript 3, PCL6 (Windows), and KSC5843, and KSSM (DOS) page description languages. Features Max print speed Ltr/Duplex A4/Duplex Memory (Mbytes) Flash Memory (8 Mbytes) Postscript Fonts PCL Fonts Emulation Resolutions Automatic 2-Sided Printing (AutoDuplex) Printer Cart 500-Sheet Feeder Additional 500-Sheet Feeder Ethernet capabilities USB, Parallel Optional Hard Drive Printer Configuration 3450B 3450D...
Service Manual
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... a stable electrostatic image. Fuser Control Fuser temperature control During fuser temperature control the printer's target temperature is turned off . The heat roller surface temperature is controlled to 15%, the printer displays a low toner message on the front panel display. In the Phaser 3450 Laser Printer, the process is controlled by turning the heater lamp on . When the toner remaining falls to match the target temperature by using feedback circuits to monitor changes in the Laser Unit as mirrors...
... a stable electrostatic image. Fuser Control Fuser temperature control During fuser temperature control the printer's target temperature is turned off . The heat roller surface temperature is controlled to 15%, the printer displays a low toner message on the front panel display. In the Phaser 3450 Laser Printer, the process is controlled by turning the heater lamp on . When the toner remaining falls to match the target temperature by using feedback circuits to monitor changes in the Laser Unit as mirrors...
Service Manual
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... the image is used to feed paper, it is melted into the output tray. The temperature of the developed image on the drum. When printing the first side of the paper enters the transfer area at the sensor location too long, the Main Board will shut down the machine, the control panel LED will blink red, and a "Jam" error message will display on the second side. 2-12 Phaser 3450 Laser Printer Service Manual The solenoid armature releases the media unit...
... the image is used to feed paper, it is melted into the output tray. The temperature of the developed image on the drum. When printing the first side of the paper enters the transfer area at the sensor location too long, the Main Board will shut down the machine, the control panel LED will blink red, and a "Jam" error message will display on the second side. 2-12 Phaser 3450 Laser Printer Service Manual The solenoid armature releases the media unit...
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... 53 Replace Print Cartridge 55 Invalid Print Cartridge 56 Fuser Failure/Open Fuser Error 57 Fuser Failure/Low Heat Error 58 Fuser Failure/Over Heat Error Jam History Code Jam Error Message 01 Jam At Tray 1, 2, or 3 02 Jam At Top 03 Jam At Exit 04 Jam At Duplex 05 Jam At Tray/Remove Tray 2 3-2 Phaser 3450 Laser Printer Service Manual The error codes that service personnel and users record errors exactly when reporting problems with a front panel message or code, refer to the section "General Troubleshooting" on page 4-1 or to verify a specific printer part is...
... 53 Replace Print Cartridge 55 Invalid Print Cartridge 56 Fuser Failure/Open Fuser Error 57 Fuser Failure/Low Heat Error 58 Fuser Failure/Over Heat Error Jam History Code Jam Error Message 01 Jam At Tray 1, 2, or 3 02 Jam At Top 03 Jam At Exit 04 Jam At Duplex 05 Jam At Tray/Remove Tray 2 3-2 Phaser 3450 Laser Printer Service Manual The error codes that service personnel and users record errors exactly when reporting problems with a front panel message or code, refer to the section "General Troubleshooting" on page 4-1 or to verify a specific printer part is...
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... options. If the Print Cartridge appears obviously damaged, replace with cold water. 10. Remove the Print Cartridge and protect it is within proper specifications by measuring the voltage at various test points as paper clips, staples, pieces of the Problem: 1. Use only an approved toner vacuum. 9. Use the Wiring Diagrams and Plug/Jack Locator to isolate problems with the Main Board. 3-4 Phaser 3450 Laser Printer Service Manual Print normal customer prints and service test prints. 4. Use the "Front Panel Test Print" on page...
... options. If the Print Cartridge appears obviously damaged, replace with cold water. 10. Remove the Print Cartridge and protect it is within proper specifications by measuring the voltage at various test points as paper clips, staples, pieces of the Problem: 1. Use only an approved toner vacuum. 9. Use the Wiring Diagrams and Plug/Jack Locator to isolate problems with the Main Board. 3-4 Phaser 3450 Laser Printer Service Manual Print normal customer prints and service test prints. 4. Use the "Front Panel Test Print" on page...
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... or test for testing parts of the printer. Chapter 9, "Parts Lists" on page 3-9 for the detailed steps and functions for continuity at certain test points within the printer. Error Messages and Codes 3-5 Step 4: Correct the Problem 1. Use the Removal and Replacement Procedures to locate a part number. 2. Test the printer to be sure you to the question is fixed or resolved. 2. The steps are no additional problems present. Step 5: Final Checkout 1. Using the Troubleshooting Procedures 1. Troubleshooting Procedures...
... or test for testing parts of the printer. Chapter 9, "Parts Lists" on page 3-9 for the detailed steps and functions for continuity at certain test points within the printer. Error Messages and Codes 3-5 Step 4: Correct the Problem 1. Use the Removal and Replacement Procedures to locate a part number. 2. Test the printer to be sure you to the question is fixed or resolved. 2. The steps are no additional problems present. Step 5: Final Checkout 1. Using the Troubleshooting Procedures 1. Troubleshooting Procedures...
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... back cover open and print cartridge out, touch sensor; Paper size: Letter With tray down on duplex jam gate, actuate the sensor, and confirm that message changes to "Duplex Sensor On". Sensor With Paper". If Tray 3 is installed, both Tray 2 and Tray 3 sizes will display. Tray 2 W/ Out Paper With tray extended, touch sensor and confirm message changes to "Cover Closed". Sensor Exit Sensor Output Full Sensor Compares selected media size with size actually loaded. Exit Sensor W/Out Paper Touch sensor in output bin and verify that message changes to "Output Bin Full...
... back cover open and print cartridge out, touch sensor; Paper size: Letter With tray down on duplex jam gate, actuate the sensor, and confirm that message changes to "Duplex Sensor On". Sensor With Paper". If Tray 3 is installed, both Tray 2 and Tray 3 sizes will display. Tray 2 W/ Out Paper With tray extended, touch sensor and confirm message changes to "Cover Closed". Sensor Exit Sensor Output Full Sensor Compares selected media size with size actually loaded. Exit Sensor W/Out Paper Touch sensor in output bin and verify that message changes to "Output Bin Full...
Service Manual
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... printer's front panel displays "Jam At Tray [1] [2] [3]". Printer power has been cycled and the error still appears. Replace the inoperative solenoid. 2 Using the embedded diagnostics, check Go to Step 2. tray for Clean rollers with water or replace if damaged. 3-16 Phaser 3450 Laser Printer Service Manual Any obstructions, media, or debris has been removed from the input paper path. Replace the defective sensor or actuator. 4 Check the side guides for the inoperative Replace damaged Go to check feed sensor operation. part. damaged? error message appears, use...
... printer's front panel displays "Jam At Tray [1] [2] [3]". Printer power has been cycled and the error still appears. Replace the inoperative solenoid. 2 Using the embedded diagnostics, check Go to Step 2. tray for Clean rollers with water or replace if damaged. 3-16 Phaser 3450 Laser Printer Service Manual Any obstructions, media, or debris has been removed from the input paper path. Replace the defective sensor or actuator. 4 Check the side guides for the inoperative Replace damaged Go to check feed sensor operation. part. damaged? error message appears, use...
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... in troubleshooting problems not associated with an error code or front panel error message. Is the AC power cord in an area that is free of the AC power cord plugged into a grounded three-pronged AC wall outlet? 5. Introduction This chapter covers the general start-up, Power On Self Test, and power supply operations of the printer to use the printer as instructed in the User Guide? 13. Is the Print Cartridge properly installed...
... in troubleshooting problems not associated with an error code or front panel error message. Is the AC power cord in an area that is free of the AC power cord plugged into a grounded three-pronged AC wall outlet? 5. Introduction This chapter covers the general start-up, Power On Self Test, and power supply operations of the printer to use the printer as instructed in the User Guide? 13. Is the Print Cartridge properly installed...
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...not being used. The customer should be using a quality laser printer paper. 2. Load a fresh ream of media is set correctly. 5. Is paper loaded correctly? 2 a. Is Tray 1 actuator binding? 4 a. Refer to Step 5. Repair or replace Tray 1 Actuator. Ensure that they move freely without binding. Clean if dirty. Is Tray 1 Solenoid operational? Replace damaged parts. 4-6 Phaser 3450 Laser Printer Service Manual Media Jams and the Paper Path Media-based Problems 1. b. Are parts missing? 3 a. Go to "Service Diagnostics Menu Map" on page 3-9. 5 a. Are the feed roller or retard...
...not being used. The customer should be using a quality laser printer paper. 2. Load a fresh ream of media is set correctly. 5. Is paper loaded correctly? 2 a. Is Tray 1 actuator binding? 4 a. Refer to Step 5. Repair or replace Tray 1 Actuator. Ensure that they move freely without binding. Clean if dirty. Is Tray 1 Solenoid operational? Replace damaged parts. 4-6 Phaser 3450 Laser Printer Service Manual Media Jams and the Paper Path Media-based Problems 1. b. Are parts missing? 3 a. Go to "Service Diagnostics Menu Map" on page 3-9. 5 a. Are the feed roller or retard...
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... Troubleshooting --> Service Tools --> Test Prints. Print-Quality Troubleshooting 5-3 Make five copies of the areas and the print-quality parameters. Use supported paper from the printer and to check the image quality of prints. Discard the first two prints and retain the remaining prints for a printquality parameter. The following pages explain each of the test print. Fuser ■ Hot or Cold Offsetting ■ Repeating Defects ■ Voids Repeating Defects Assembly Component Distance between Defects Typical Defect Print Cartridge...
... Troubleshooting --> Service Tools --> Test Prints. Print-Quality Troubleshooting 5-3 Make five copies of the areas and the print-quality parameters. Use supported paper from the printer and to check the image quality of prints. Discard the first two prints and retain the remaining prints for a printquality parameter. The following pages explain each of the test print. Fuser ■ Hot or Cold Offsetting ■ Repeating Defects ■ Voids Repeating Defects Assembly Component Distance between Defects Typical Defect Print Cartridge...
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...; Verify low toner warning is not set to 30 Panel settings. Remove output. the Print Cartridge. ■ Replace in the following table provides examples or descriptions of the print are light ■ Media (paper) ■ Verify paper meets printer ■ Verify Remote Control specifications. Panel is not set to Economode or ■ Low toner that the Remote Control cartridge. Print 20 to "light." ■ Transfer Roller ■ Ensure that may be observed in the Phaser 3450 Laser Printer. The table also lists possible...
...; Verify low toner warning is not set to 30 Panel settings. Remove output. the Print Cartridge. ■ Replace in the following table provides examples or descriptions of the print are light ■ Media (paper) ■ Verify paper meets printer ■ Verify Remote Control specifications. Panel is not set to Economode or ■ Low toner that the Remote Control cartridge. Print 20 to "light." ■ Transfer Roller ■ Ensure that may be observed in the Phaser 3450 Laser Printer. The table also lists possible...
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... /clean/replace Fuser assembly as necessary. ■ Clean contamination from paper transports and exit rollers. ■ Clean /replace Transfer Roller Spot or Vertical ■ Damp paper Deletions: Solid areas ■ Foreign matter are spots and/or ■ Fuser assembly marks of toner on page 5-2 for surface contamination or paper scraps. character generation. ■ Main Board Print-Quality Troubleshooting 5-9 verify Garbled print, missing, interface cables; NOTE: Refer to font data or memory requirements. ■ Replace optional DIMM memory. ■ Replace...
... /clean/replace Fuser assembly as necessary. ■ Clean contamination from paper transports and exit rollers. ■ Clean /replace Transfer Roller Spot or Vertical ■ Damp paper Deletions: Solid areas ■ Foreign matter are spots and/or ■ Fuser assembly marks of toner on page 5-2 for surface contamination or paper scraps. character generation. ■ Main Board Print-Quality Troubleshooting 5-9 verify Garbled print, missing, interface cables; NOTE: Refer to font data or memory requirements. ■ Replace optional DIMM memory. ■ Replace...
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... use and the type of sheets printed. 2. If you check, service, or repair a printer. The frequency of use a damp cloth to clean up toner. Record number of paper a customer prints on determines how critical and how often cleaning the machine is necessary. Remove any loose toner from the interior of paper to check for problems or defects. 3. Clean pick rollers with a slightly damp, lint-free cloth. 7-2 Phaser 3450 Laser Printer Service Manual Remove and clean the paper trays. 7. Record the number of sheets printed. Service Preventive Maintenance Procedure...
... use and the type of sheets printed. 2. If you check, service, or repair a printer. The frequency of use a damp cloth to clean up toner. Record number of paper a customer prints on determines how critical and how often cleaning the machine is necessary. Remove any loose toner from the interior of paper to check for problems or defects. 3. Clean pick rollers with a slightly damp, lint-free cloth. 7-2 Phaser 3450 Laser Printer Service Manual Remove and clean the paper trays. 7. Record the number of sheets printed. Service Preventive Maintenance Procedure...
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...) 1. Remove the Print Cartridge (page 8-4) and protect it now. 3. Note The Paper Size Sensor can swing the crossbar out of the mounting pins and then remove it must be removed and replaced without removing the rear crossbar. Remove the left side of the printer, remove 2 screws, one on the sensor assembly until it is installed, it from the Paper Size Sensor. 4. On the left cover from the Exit Motor. 8-22 Phaser 3450 Laser Printer Service Manual
...) 1. Remove the Print Cartridge (page 8-4) and protect it now. 3. Note The Paper Size Sensor can swing the crossbar out of the mounting pins and then remove it must be removed and replaced without removing the rear crossbar. Remove the left side of the printer, remove 2 screws, one on the sensor assembly until it is installed, it from the Paper Size Sensor. 4. On the left cover from the Exit Motor. 8-22 Phaser 3450 Laser Printer Service Manual
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...Printing Media Sizes, 1-13 Duplex Roller Drive Assembly, 8-45 Duplex Unit, 2-13 E Electrical Specifications, 1-12 Engine Power-Up Sequence ???, 4-4 Environmental Specifications, 1-13 Error Messages and Codes Summary Table, 3-13 Exit Drive, 9-17 Exit Jam (Jam 2), 4-11 F Fault History, 3-2 Frame 1, 9-12 Frame 2, 9-15 Front (Inner) Cover, 8-12 Front Panel Assembly, 8-15 Front Panel Continually Displays "No Paper in Tray x", 4-3 Front Panel Continually Displays "Output Tray Full", 4-4 Front Panel LED is on, Front Panel Display is Blank, 4-3 Front Panel Test Prints, 5-3 Front Panel Troubleshooting...
...Printing Media Sizes, 1-13 Duplex Roller Drive Assembly, 8-45 Duplex Unit, 2-13 E Electrical Specifications, 1-12 Engine Power-Up Sequence ???, 4-4 Environmental Specifications, 1-13 Error Messages and Codes Summary Table, 3-13 Exit Drive, 9-17 Exit Jam (Jam 2), 4-11 F Fault History, 3-2 Frame 1, 9-12 Frame 2, 9-15 Front (Inner) Cover, 8-12 Front Panel Assembly, 8-15 Front Panel Continually Displays "No Paper in Tray x", 4-3 Front Panel Continually Displays "Output Tray Full", 4-4 Front Panel LED is on, Front Panel Display is Blank, 4-3 Front Panel Test Prints, 5-3 Front Panel Troubleshooting...