Xerox 3450B - Phaser B/W Laser Printer Support and Manuals
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Service Manual - Page 3
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
Service Manual - Page 8
... and ground. CLASS 1 LASER PRODUCT
The Phaser 3450 Laser Printer is certified to make certain that does not emit hazardous laser radiation; Service Safety Summary
General Guidelines
Note The material presented here is totally enclosed during a service call . Disconnect power before removing the power supply shield or replacing components. Warning labels are in the manual.
Service Manual - Page 15
...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...4-4 Power Supply Troubleshooting 4-5
xiv
Phaser 3450 Laser Printer
Service Manual - Page 29
... currently stored (in NVRAM. Consumables
Print Cartridge*
Service Parts
Fuser Assembly Transfer Roller Feed Roller Kit
Print Life
High Capacity 10,000 Standard Capacity 5,000
125,000 125,000 125,000
1-10
Phaser 3450 Laser Printer Service Manual The trigger values are as follows:
■ 10K Cartridge: 78,000 = Toner Low, 92,000 = Replace Cartridge
■ 5K Cartridge: 39,000 = Toner...
Service Manual - Page 35
... to scan the drum surface from the drum.
2-2
Phaser 3450 Laser Printer Service Manual A rotating polygonal mirror causes the laser beams to the supply roller and are directed onto the drum surface through the Fuser where it at approximately -1400 VDC by the metering blade. Pre-Clean: The pre-transfer lamp exposes the developed suface of the print...
Service Manual - Page 38
... process is set. If the detection result is low, the heater lamp is turned on the front panel display. data expressed by blinking laser beams. The laser unit monitors the output to determine if variations in the light intensity from the laser beam, variations in the optical system (such as digital signals. In the Phaser 3450 Laser Printer, the...
Service Manual - Page 43
... ■ Cleaning Blade
Laser Scan Unit (LSU)
The Laser Scan Unit receives the bit mapped image data from the Main Board and uses that information to turn the laser beam on and off as required to correctly expose the drum. Print Cartridge
The Print Cartridge receives image data in the form of the drum.
2-10
Phaser 3450 Laser Printer Service Manual
Service Manual - Page 49
Introduction
This section covers troubleshooting procedures for the Phaser 3450 Laser Printer front panel error messages and codes. Some procedures require running service diagnostic test functions to "Print-Quality Troubleshooting" on , media, paper path, printquality or image problems, and electrical failures not associated with the printer. To troubleshoot problems, such as start up and ...
Service Manual - Page 52
... the printer. Troubleshooting Procedures may ask you must follow the instructions for all major parts of the printer.
4. Chapter 9, "Parts Lists" on page 3-9 for the detailed steps and functions for a "No" reply.
5. Error Messages and Codes
3-5 Step 5: Final Checkout
1. Test the printer to be sure you to the question is followed by a question. If your response to replace a printer...
Service Manual - Page 59
...Transfer Roll (ON/OFF)
PTL turns on when OK is pressed and goes off . PTL (ON/OFF)
Laser Diode turns on when OK is pressed and goes off when Cancel is pressed.
Total OPC Cycle [XXX]
3-12
Phaser 3450 Laser Printer Service Manual...Dev Bias
Charge Roll
Transfer Roll (+)
Transfer Roll (-)
Pre-transfer Lamp (PTL)
Laser Scanning Unit (LSU)
Laser Diode
Laser Ready
Fuser
Fuser ...
Service Manual - Page 63
... and the error still appears.
operation of the Regi Clutch and Feed Clutch. operation of the tray solenoids.
part. damaged? Do the clutches operate correctly? Replace the defective clutch.
3 If paper feeds into place.
Does the feed sensor operate correctly? tray for Clean rollers with water or
replace if
damaged.
3-16
Phaser 3450 Laser Printer Service Manual Jam At Tray...
Service Manual - Page 83
... components, consumables, media, internal software, external software applications, and environmental conditions. To successfully troubleshoot print quality problems, as many variables as possible must be from , "Xerox Supplies" on Image
5-2
Phaser 3450 Laser Printer Service Manual The visible surfaces of the printed page (simplex mode) ■ Light Prints ■ Repeating Defects ■...
Service Manual - Page 84
...Troubleshooting --> Service Tools --> Test Prints. Use supported paper from the printer and to check the image quality of the test print. Make five copies of prints. The following pages explain each of the test print is available to aid in determining the quality of output from a fresh, unopened ream (whenever possible), to assist in troubleshooting problems...
Transfer Roller Transfer ...
Service Manual - Page 89
... 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 outputs.
■ Replace Print Cartridge.
■ Inspect Transfer Roller for the Toner Density menu is installed in specified
■ Incorrect High Voltage
environment?
S6200...
Service Manual - Page 176
... 3-18 Duplex Paper Path, 2-6 Duplex 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...
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