Phaser 7500 Printer Service Manual
2-15
Theory of Operation
Secondary Transfer (Belt --> Paper)
The complete toner image formed on the belt surface is transferred onto the paper
by the 2nd BTR (Second Bias Transfer Roll: Secondary Transfer Roll).
•
The 2nd BTR will contact the belt after the power is turned On. Because the L/
H Cover opening/ closing strength is reduced, it is kept away from the belt
during a jam, or when the power is turned Off.
•
During the transfer to the paper, the 2nd BTR contacts the Backup Roll (the
conductive roll at the inner side of the belt) through the belt to pinch the
paper that is being transported between the belt and the 2nd BTR.
•
The Backup Roll is charged with negative DC Voltage from the HVPS, forming
a transfer field with the grounded 2nd BTR that transfers the completed toner
image on the belt onto the paper.
Backup Roller
Backup Roller
2nd BTR
Belt
HVPS
s7500-350
Содержание PHASER 7500
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Страница 60: ...1 30 Phaser 7500 Printer Service Manual General Information ...
Страница 448: ...3 310 Phaser 7500 Printer Service Manual Error Messages and Codes ...
Страница 484: ...4 36 Phaser 7500 Printer Service Manual General Troubleshooting ...
Страница 544: ...5 60 Phaser 7500 Printer Service Manual Print Quality Troubleshooting ...
Страница 545: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments Calibrations ...
Страница 554: ...6 10 Phaser 7500 Printer Service Manual Adjustments and Calibrations ...
Страница 555: ...7 Chapter Cleaning and Maintenance In this chapter Service Maintenance Procedure Cleaning Maintenance ...
Страница 562: ...7 8 Phaser 7500 Printer Service Manual Cleaning and Maintenance ...
Страница 806: ...9 24 Phaser 7500 Printer Service Manual Parts List Parts List 4 3 NOHAD 3 of 3 s7500 012 5 2 J 3 4 8 7 10 9 J ...
Страница 900: ...9 118 Phaser 7500 Printer Service Manual Parts List ...
Страница 958: ...10 58 Phaser 7500 Printer Service Manual Plug Jack and Wiring Diagrams ...
Страница 980: ...11 22 Phaser 7500 Printer Service Manual Reference ...
Страница 990: ...I 10 Phaser 7500 Printer Service Manual Index ...
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