Phaser 6121MFP Service Manual
2-7
Theory of Operation
Thermistors
Thermistors have a known value of resistance whose value varies with
temperature. Used primarily in the Fuser for temperature sensing.
Sensors in the Paper Path
The following illustration identifies the various sensors located along the paper
path of a printer equipped with the Lower Feeder Unit and Duplex Unit. Error
reporting is dependent on these designators. Error detection is based on paper
transport timing through the sensing area.
Item
Description
1
Exit Sensor
2
2nd Image Transfer Retraction Position Sensor
3
Registration Sensor
4
Media Empty Sensor
s6128mfp-108
1
2
3
4
Summary of Contents for PHASER 6121MFP
Page 1: ...Phaser 6121MFP Multi Function Printer Phaser 6121MFP Service Manual...
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Page 12: ...x Phaser 6121MFP Service Manual Contents...
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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...
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