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Phaser 6121MFP Service Manual
5-7
Print-Quality Troubleshooting
Print Quality Troubleshooting
The following table provides a list of possible print quality problems and lists pages
for more information.
Printing Test Patterns
Many of the troubleshooting procedures require that you print one of the printers
built-in test patterns. Use the following procedure to print the test pattern.
1. On the initial screen, press the following keys in this order.
OK
>
Stop/Reset
>
0
>
0
>
Stop/Reset
>
0
>
1
.
2. Press the
Down Arrow
button to navigate to
Function
, and then press
OK
.
3. Navigate to
Prn Test Pattern
, and then press
OK
.
4. Select a paper tray and press
OK
.
5. Select a test pattern, and then press
OK
.
Print Quality Summary
Print Quality Problem
Go to
Blank Copy or Black Copy
5-8
Light Print
5-10
Foggy Background
5-12
White or Colored Lines and Bands in Feed Direction
5-14
White or Colored Lines and Bands in Scan Direction
5-16
Black Spots
5-19
Gradation Reproduction Failure
5-20
Void Areas and White Spots
5-21
Colored Spots
5-23
Blurred Image
5-24
Incorrect Color Image Registration
5-25
Poor Fusing Performance or Offset
5-26
Brush Effect or Blurred Image
5-27
Back Marking
5-28
Uneven Pitch
5-29
Skew
5-31
Uneven Density in the Feed Direction
5-33
Uneven Density in The Scan Direction
5-34
Summary of Contents for PHASER 6121MFP
Page 1: ...Phaser 6121MFP Multi Function Printer Phaser 6121MFP Service Manual...
Page 2: ......
Page 12: ...x Phaser 6121MFP Service Manual Contents...
Page 22: ...xx Phaser 6121MFP Service Manual...
Page 42: ...1 20 Phaser 6121MFP Service Manual General Information...
Page 106: ...2 64 Phaser 6121MFP Service Manual Theory of Operation...
Page 109: ...Phaser 6121MFP Service Manual 3 3 Error Messages and Codes s6121mfp 372...
Page 194: ...3 88 Phaser 6121MFP Service Manual Error Messages and Codes...
Page 306: ...6 44 Phaser 6121MFP Service Manual Adjustments and Calibrations...
Page 405: ...Phaser 6121MFP Service Manual 8 85 Service Parts Disassembly 3 Remove the spring s6121mfp 255...
Page 432: ...8 112 Phaser 6121MFP Service Manual Service Parts Disassembly...
Page 437: ...Phaser 6121MFP Service Manual 9 5 Parts List...
Page 477: ...Phaser 6121MFP Service Manual 9 45 Parts List...
Page 488: ...9 56 Phaser 6121MFP Service Manual Parts List...
Page 489: ...10 Chapter Wiring In this chapter Plug Jack Designations and Locator Diagrams Wiring Diagrams...
Page 530: ...1 6 Phaser 6121MFP Service Manual Index...
Page 531: ......