Service Manual
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...or maintenance procedure, practice or condition that, if not strictly observed, could result in damage to, or destruction of life. CTD: Toner Density Control PTL: Pre-Transfer Lamp DRV: Motor Driver Board RMI: Routine Maintenance Item ESD: Electrostatic Discharge RMS: Root-Mean-Square LSU...: Laser Scanning Unit RTC: Charge Roller MCU: Engine Control Board Note A note indicates an operating or maintenance procedure, practice or condition that...
...or maintenance procedure, practice or condition that, if not strictly observed, could result in damage to, or destruction of life. CTD: Toner Density Control PTL: Pre-Transfer Lamp DRV: Motor Driver Board RMI: Routine Maintenance Item ESD: Electrostatic Discharge RMS: Root-Mean-Square LSU...: Laser Scanning Unit RTC: Charge Roller MCU: Engine Control Board Note A note indicates an operating or maintenance procedure, practice or condition that...
Service Manual
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...off by a service procedure. You must service the printer with power applied, be aware of the potential for the Fuser to cool before you are instructed to service the Fuser Assembly or adjacent components. viii Phaser 3450 Laser Printer Warning Do not try to media. Position the power... cord so that it is running. S7300-03 Servicing Fuser Components Warning This printer uses heat to fuse the toner image to manually rotate or manually stop the ...
...off by a service procedure. You must service the printer with power applied, be aware of the potential for the Fuser to cool before you are instructed to service the Fuser Assembly or adjacent components. viii Phaser 3450 Laser Printer Warning Do not try to media. Position the power... cord so that it is running. S7300-03 Servicing Fuser Components Warning This printer uses heat to fuse the toner image to manually rotate or manually stop the ...
Service Manual
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... (ESD) Precautions vi Service Safety Summary vii Regulatory Specifications ix 1 General Information Printer Introduction and Overview 1-2 Printer Configurations 1-3 Parts of the Printer 1-4 Exterior 1-4 Phaser 3450 Front Panel Configuration 1-5 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...
... (ESD) Precautions vi Service Safety Summary vii Regulatory Specifications ix 1 General Information Printer Introduction and Overview 1-2 Printer Configurations 1-3 Parts of the Printer 1-4 Exterior 1-4 Phaser 3450 Front Panel Configuration 1-5 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...
Service Manual
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...4-12 Jam At Tray/Remove Tray 2 (Duplex Jam 2 4-13 CRUM Toner Error 4-14 5 Print-Quality Troubleshooting Print-Quality Problems Overview 5-2 Defects Associated with Specific Printer Components 5-2 Front Panel Test Print 5-3 Deletions 5-4 Fusing 5-5 Resolution 5-5 Registration... Procedure 7-2 Recommended Tools 7-2 Cleaning 7-2 Printing a Cleaning Sheet 7-3 8 Service Parts Disassembly Overview 8-2 Standard Orientation of the Printer 8-2 General Notes on Disassembly 8-3 Preparation 8-3 Removing Service Parts and Consumables 8-4 Print Cartridge Removal (PL 9.1.8 8-4 Transfer Roller...
...4-12 Jam At Tray/Remove Tray 2 (Duplex Jam 2 4-13 CRUM Toner Error 4-14 5 Print-Quality Troubleshooting Print-Quality Problems Overview 5-2 Defects Associated with Specific Printer Components 5-2 Front Panel Test Print 5-3 Deletions 5-4 Fusing 5-5 Resolution 5-5 Registration... Procedure 7-2 Recommended Tools 7-2 Cleaning 7-2 Printing a Cleaning Sheet 7-3 8 Service Parts Disassembly Overview 8-2 Standard Orientation of the Printer 8-2 General Notes on Disassembly 8-3 Preparation 8-3 Removing Service Parts and Consumables 8-4 Print Cartridge Removal (PL 9.1.8 8-4 Transfer Roller...
Service Manual
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The Main Board monitors this counter in order to display the near end-of-life and end-of -use messages. Consumable (toner/print cartridge) usage is tracked by the CRUM and monitored by the Main Board in order to display the near end-of-life and end-... Standard Capacity 5,000 125,000 125,000 125,000 1-10 Phaser 3450 Laser Printer Service Manual The value currently stored (in NVRAM. The trigger values are as follows: ■ 10K Cartridge: 78,000 = Toner Low, 92,000 = Replace Cartridge ■ 5K Cartridge: 39,000 = Toner Low, 46,000 = Replace Cartridge Life ratings are based on...
The Main Board monitors this counter in order to display the near end-of-life and end-of -use messages. Consumable (toner/print cartridge) usage is tracked by the CRUM and monitored by the Main Board in order to display the near end-of-life and end-... Standard Capacity 5,000 125,000 125,000 125,000 1-10 Phaser 3450 Laser Printer Service Manual The value currently stored (in NVRAM. The trigger values are as follows: ■ 10K Cartridge: 78,000 = Toner Low, 92,000 = Replace Cartridge ■ 5K Cartridge: 39,000 = Toner Low, 46,000 = Replace Cartridge Life ratings are based on...
Service Manual
Page 35
... roller receives a high positive voltage (approximately +1000 VDC) from the drum. 2-2 Phaser 3450 Laser Printer Service Manual The system, comprising a drum and developing unit, places the toner image onto print media producing a monochrome image. The beams are then applied to maintain... blade. The toner is fused onto the print media by a Thermistor. Overview of the Phaser 3450 Laser Printer Summary of the Printing Process The Phaser 3450 Laser Printer is a desktop monochrome laser printer, applying the principals of heat and pressure. Transfer: The finished toner image on the...
... roller receives a high positive voltage (approximately +1000 VDC) from the drum. 2-2 Phaser 3450 Laser Printer Service Manual The system, comprising a drum and developing unit, places the toner image onto print media producing a monochrome image. The beams are then applied to maintain... blade. The toner is fused onto the print media by a Thermistor. Overview of the Phaser 3450 Laser Printer Summary of the Printing Process The Phaser 3450 Laser Printer is a desktop monochrome laser printer, applying the principals of heat and pressure. Transfer: The finished toner image on the...
Service Manual
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Print modes are front panel selectable. ■ Draft mode: Uses a combination of reduced toner output and the lowest resolution (300 x 300 dpi) to extend print cartridge life. ■ 300: Used for printing with a ... for printing on plain paper with an addressable resolution of Operation 2-3 8.Exit Exit Sensor Laser 2.Charging C/R 7.Fixing H/R 3.Exposure 4.Development OPC D/R S/R 1.Feeding P/R T/R PTL Registration 6.Transfer 5.Pre-Transfer Sensor s3450-201 Print Modes The Phaser 3450 Laser Printer provides four print modes: draft, 300, 600, and enhanced. Theory of 1200 x ...
Print modes are front panel selectable. ■ Draft mode: Uses a combination of reduced toner output and the lowest resolution (300 x 300 dpi) to extend print cartridge life. ■ 300: Used for printing with a ... for printing on plain paper with an addressable resolution of Operation 2-3 8.Exit Exit Sensor Laser 2.Charging C/R 7.Fixing H/R 3.Exposure 4.Development OPC D/R S/R 1.Feeding P/R T/R PTL Registration 6.Transfer 5.Pre-Transfer Sensor s3450-201 Print Modes The Phaser 3450 Laser Printer provides four print modes: draft, 300, 600, and enhanced. Theory of 1200 x ...
Service Manual
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Parameter correction and control over the entire printing process is turned on. In the Phaser 3450 Laser Printer, the process is controlled by the Print Cartridge Interconnect Board and the associated signals are preventing the system from obtaining ...set. When the toner remaining falls to achieve optimum printing results. Fuser Control Fuser temperature control During fuser temperature control the printer's target temperature is a genuine Xerox cartridge. The heat roller surface temperature is controlled to match the target temperature by blinking laser beams. The laser unit monitors the ...
Parameter correction and control over the entire printing process is turned on. In the Phaser 3450 Laser Printer, the process is controlled by the Print Cartridge Interconnect Board and the associated signals are preventing the system from obtaining ...set. When the toner remaining falls to achieve optimum printing results. Fuser Control Fuser temperature control During fuser temperature control the printer's target temperature is a genuine Xerox cartridge. The heat roller surface temperature is controlled to match the target temperature by blinking laser beams. The laser unit monitors the ...
Service Manual
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This potential attracts the negatively charged toner image from the drum and deposits it adheres to lower surface potential of the ... control panel LED will blink yellow, and the Paper Out message for the heat roller. The Heat Roller melts the toner so it on the back of drive gears. Theory of the Pre-Transfer Lamp (PTL) and the Transfer Roller. ... paper, the sensor will display on the opposite side of the print media so the heat roller can embed the melted toner in the media. ■ Thermistor: monitors the surface temperature of the print media. The Pick-Up Roller assembly includes ...
This potential attracts the negatively charged toner image from the drum and deposits it adheres to lower surface potential of the ... control panel LED will blink yellow, and the Paper Out message for the heat roller. The Heat Roller melts the toner so it on the back of drive gears. Theory of the Pre-Transfer Lamp (PTL) and the Transfer Roller. ... paper, the sensor will display on the opposite side of the print media so the heat roller can embed the melted toner in the media. ■ Thermistor: monitors the surface temperature of the print media. The Pick-Up Roller assembly includes ...
Service Manual
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... paper. Paper Transport The registration transport assembly continues to drive the paper into the Duplex Unit for printing on the second side. 2-12 Phaser 3450 Laser Printer Service Manual Paper Feed Sequence When the Main Board is used to monitor paper movement. First, it is ready to feed paper, it... by a thermistor that the paper is almost at the transfer area and it goes between the heat roller and the pressure roller, the toner is melted into the output tray. When printing the first side of the assembly. Registration Sensor The Registration Sensor has two purposes. The ...
... paper. Paper Transport The registration transport assembly continues to drive the paper into the Duplex Unit for printing on the second side. 2-12 Phaser 3450 Laser Printer Service Manual Paper Feed Sequence When the Main Board is used to monitor paper movement. First, it is ready to feed paper, it... by a thermistor that the paper is almost at the transfer area and it goes between the heat roller and the pressure roller, the toner is melted into the output tray. When printing the first side of the assembly. Registration Sensor The Registration Sensor has two purposes. The ...
Service Manual
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... proper specifications by measuring the voltage at various test points as paper clips, staples, pieces of paper, dust or loose toner. 6. Switch OFF printer power. 2. Remove the Print Cartridge and protect it is recommended that you choose not to use any foreign matter such ...using this technical manual, to isolate problems with the Main Board. 3-4 Phaser 3450 Laser Printer Service Manual Always follow the safety measures detailed in the front of the Problem: 1. Check for damaged wires, loose connections, toner leakage, and damaged or obviously worn parts. 11. Make note of any...
... proper specifications by measuring the voltage at various test points as paper clips, staples, pieces of paper, dust or loose toner. 6. Switch OFF printer power. 2. Remove the Print Cartridge and protect it is recommended that you choose not to use any foreign matter such ...using this technical manual, to isolate problems with the Main Board. 3-4 Phaser 3450 Laser Printer Service Manual Always follow the safety measures detailed in the front of the Problem: 1. Check for damaged wires, loose connections, toner leakage, and damaged or obviously worn parts. 11. Make note of any...
Service Manual
Page 59
...diode is on, polygon speed stable). (Pass/Error) When "Target Temp" displays, (default is pressed. Total OPC Cycle [XXX] 3-12 Phaser 3450 Laser Printer Service Manual Charge Roll Test (ON/ OFF) Positive Transfer Voltage (+1200V) turns on when OK is pressed and goes off when Cancel is...not change target if desired, and press OK. Ranges are as follows: 10K Cartridge: ■ 78,000 = Toner Low ■ 92,000 = Replace Cart. 5K Cartridge: ■ 39,000 = Toner Low ■ 46,000 = Replace Cart. Measure voltage with a DMM, if required. Function Function Function Description ...
...diode is on, polygon speed stable). (Pass/Error) When "Target Temp" displays, (default is pressed. Total OPC Cycle [XXX] 3-12 Phaser 3450 Laser Printer Service Manual Charge Roll Test (ON/ OFF) Positive Transfer Voltage (+1200V) turns on when OK is pressed and goes off when Cancel is...not change target if desired, and press OK. Ranges are as follows: 10K Cartridge: ■ 78,000 = Toner Low ■ 92,000 = Replace Cart. 5K Cartridge: ■ 39,000 = Toner Low ■ 46,000 = Replace Cart. Measure voltage with a DMM, if required. Function Function Function Description ...
Service Manual
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... Summary Table Error Messages and Codes Summary Table Error Type Front Panel Message Fuser Laser Errors Jam Errors Memory Errors Tray Errors Toner Errors Fuser Failure (open/disconnected Fuser) Engine Fuser Low Heat Error Engine Fuser Over Heat Error Laser Failure (Polygon motor not ready) Jam At Tray [1] [2] [3]/ Remove All Paper Jam At...
... Summary Table Error Messages and Codes Summary Table Error Type Front Panel Message Fuser Laser Errors Jam Errors Memory Errors Tray Errors Toner Errors Fuser Failure (open/disconnected Fuser) Engine Fuser Low Heat Error Engine Fuser Over Heat Error Laser Failure (Polygon motor not ready) Jam At Tray [1] [2] [3]/ Remove All Paper Jam At...
Service Manual
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...CN6 on the Main Board. Replace Print Cartridge Interconnect Board. Replace Print Cartridge. 4-14 Phaser 3450 Laser Printer Service Manual Does the error clear? Does the cartridge contain toner and appear to Step 4. Replace Harness. Does the error clear after reseating the cartridge?...Check Print Cartridge. Does the harness show continuity? No Go to the Print Cartridge Interconnect Board. CRUM Toner Error Troubleshooting References Applicable Parts Print Cartridge Toner Sensor Harness Print Cartridge Interconnect Board Procedure Wiring and Plug/Jack Map References Step 1 2 3 4...
...CN6 on the Main Board. Replace Print Cartridge Interconnect Board. Replace Print Cartridge. 4-14 Phaser 3450 Laser Printer Service Manual Does the error clear? Does the cartridge contain toner and appear to Step 4. Replace Harness. Does the error clear after reseating the cartridge?...Check Print Cartridge. Does the harness show continuity? No Go to the Print Cartridge Interconnect Board. CRUM Toner Error Troubleshooting References Applicable Parts Print Cartridge Toner Sensor Harness Print Cartridge Interconnect Board Procedure Wiring and Plug/Jack Map References Step 1 2 3 4...
Service Manual
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... ■ Voids ■ Repeating Defects Transfer Roller ■ Toner on the back side of paper, then components, software applications, and environmental conditions need to printer components, consumables, media, internal software, external software applications, and...Phaser 3450 Laser Printer. See the approved media list from the approved media list. Print-Quality Problems Overview Print-quality defects can be eliminated. Print Cartridge ■ Streaks ■ Fine Lines ■ Banding in the printer on laser paper from , "Xerox Supplies" on Image 5-2 Phaser 3450 Laser Printer...
... ■ Voids ■ Repeating Defects Transfer Roller ■ Toner on the back side of paper, then components, software applications, and environmental conditions need to printer components, consumables, media, internal software, external software applications, and...Phaser 3450 Laser Printer. See the approved media list from the approved media list. Print-Quality Problems Overview Print-quality defects can be eliminated. Print Cartridge ■ Streaks ■ Fine Lines ■ Banding in the printer on laser paper from , "Xerox Supplies" on Image 5-2 Phaser 3450 Laser Printer...
Service Manual
Page 86
The toner should be uniform in appearance. Resolution Observe the three resolution check points on page 5-9. If the image does not meet the criteria refer to be ... patches should not lift off the image onto the cloth, refer to Unfused Image on page 5-10. Print-Quality Troubleshooting 5-5 If the image smears or toner lifts off of the surface of the print. The diagonal lines might appear to Non-Uniform Image on page 5-8 or Character Defects on several test...
The toner should be uniform in appearance. Resolution Observe the three resolution check points on page 5-9. If the image does not meet the criteria refer to be ... patches should not lift off the image onto the cloth, refer to Unfused Image on page 5-10. Print-Quality Troubleshooting 5-5 If the image smears or toner lifts off of the surface of the print. The diagonal lines might appear to Non-Uniform Image on page 5-8 or Character Defects on several test...
Service Manual
Page 88
... have no visible image removed from the cartridge. ■ Low or no toner been removed. ■ Verify Print Cartridge ground. ■ Verify continuity between the ■ Defective ground to 30 Panel settings. the Print Cartridge. ■ Replace in the Phaser 3450 Laser Printer. Print-Quality Troubleshooting The following order: ■ Main Board ■ Print...
... have no visible image removed from the cartridge. ■ Low or no toner been removed. ■ Verify Print Cartridge ground. ■ Verify continuity between the ■ Defective ground to 30 Panel settings. the Print Cartridge. ■ Replace in the Phaser 3450 Laser Printer. Print-Quality Troubleshooting The following order: ■ Main Board ■ Print...
Service Manual
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...cartridge. ■ Replace the following in order: ■ Print Cartridge ■ Power Supply Board ■ Laser assembly s3450-169 Background: Uniform toner contamination in non-image area ■ Media (paper). ■ Verify that drum contact is installed in specified...; Operating environment ■ Printer is clean and undamaged. ■ Inspect the Transfer Roller spring tension and bearing contacts. ■ Remove Laser assembly, clean window or replace assembly as necessary . ■ Replace Power Supply Board. 5-8 Phaser 3450 Laser Printer Service Manual NOTE: Refer ...
...cartridge. ■ Replace the following in order: ■ Print Cartridge ■ Power Supply Board ■ Laser assembly s3450-169 Background: Uniform toner contamination in non-image area ■ Media (paper). ■ Verify that drum contact is installed in specified...; Operating environment ■ Printer is clean and undamaged. ■ Inspect the Transfer Roller spring tension and bearing contacts. ■ Remove Laser assembly, clean window or replace assembly as necessary . ■ Replace Power Supply Board. 5-8 Phaser 3450 Laser Printer Service Manual NOTE: Refer ...
Service Manual
Page 90
...Print Cartridge bands appearing in the ■ Fuser Assembly horizontal direction. ■ Transfer Roller ■ Incorrect high voltage outputs. ■ Laser Assembly ■ Replace the Print Cartridge. ■ Inspect /clean/replace Fuser Assembly as required. ■ If deletions repeat every 95 mm...Marks: ■ Print Cartridge There are spots and/or ■ Fuser assembly marks of toner on page 5-2 for defect pitch. ■ Remove the Transfer Roller and clean (dust off). printer components. ■ Print Cartridge ■ Transfer Roller ■ Replace paper. ■ ...
...Print Cartridge bands appearing in the ■ Fuser Assembly horizontal direction. ■ Transfer Roller ■ Incorrect high voltage outputs. ■ Laser Assembly ■ Replace the Print Cartridge. ■ Inspect /clean/replace Fuser Assembly as required. ■ If deletions repeat every 95 mm...Marks: ■ Print Cartridge There are spots and/or ■ Fuser assembly marks of toner on page 5-2 for defect pitch. ■ Remove the Transfer Roller and clean (dust off). printer components. ■ Print Cartridge ■ Transfer Roller ■ Replace paper. ■ ...
Service Manual
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...performance and result in early failure. 1. Clean pick rollers with a slightly damp, lint-free cloth. 7-2 Phaser 3450 Laser Printer Service Manual Cleaning the printer, as outlined in the following procedures whenever you remove the Print Cartridge, place it in a light protective ... sheets printed. Turn off the printer. 4. Service Preventive Maintenance Procedure Perform the following steps, assures proper operation of the printer and reduces the probability of having to any loose toner from the interior of the printer using a Type II toner vacuum only. 6. Remove any debris...
...performance and result in early failure. 1. Clean pick rollers with a slightly damp, lint-free cloth. 7-2 Phaser 3450 Laser Printer Service Manual Cleaning the printer, as outlined in the following procedures whenever you remove the Print Cartridge, place it in a light protective ... sheets printed. Turn off the printer. 4. Service Preventive Maintenance Procedure Perform the following steps, assures proper operation of the printer and reduces the probability of having to any loose toner from the interior of the printer using a Type II toner vacuum only. 6. Remove any debris...