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Phaser 6121MFP Service Manual
Theory of Operation
To return the cleaning blade to the Transfer Belt:
1. The cleaning blade pressure/retraction solenoid (SD5) is energized rotating
the pressure cam a half turn. This pushes the lever backward.
2. When the lever is pushed backward, the cleaning blade is returned. Then, the
cleaning blade is pressed against the transfer belt.
Image development requires the creation of a composite image on the surface of
the Transfer Belt. The leading edge of each color component of the image must
register correctly on the Transfer Belt’s surface. The position of the Transfer Belt is
monitored by the Transfer Belt Position Sensor. The optical sensor detects holes in
the Transfer Belt.
Two detection holes are punched in the Transfer Belt. The image write start
position varies according to the media size. For A4 or smaller media, the image
write start position, as determined by the sensor, is detection hole A. For a media
sizes larger than A4, detection hole B is the reference for the image write start
position.
s6121mfp-143
Belt Positioning Sensor
Detection Hole A
Detection Hole B
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: ......