Phaser 7500 Printer Service Manual
2-35
Theory of Operation
1st BTR Contact/ Retract
Depending on the mode, there are 3 positions for the 1st BTR as shown in the
illustration.
1. In Full Color Mode, all four 1st BTRs will contact the Drum through the belt.
2. In Black & White Mode, only the 1st BTR (K) will contact the belt (Drum). The
other three 1st BTRs (Y/M/C) will not contact the belt (Drum). The 1st BTR
Contact Retract Clutch operation controls whether the 1st BTR (Y/M/C) is in
Contact/Retract state with the belt (Drum).
3. When in the replacement position, all four 1st BTRs will not contact the belt
(Drum). This position is attained by releasing the lever at the front of the IBT
Belt Unit.
1. Full Color Mode
1st BTR (K)
1st BTR (C)
1st BTR (M)
1st BTR (Y)
Belt
Drum (Y)
Drum (M)
Drum (C)
Drum (K)
2. B&W Mode
3. Replacement Position
s7500-370
Summary of Contents for PHASER 7500
Page 1: ...Phaser 7500 Color Printer Phaser 7500 Service Manual Xerox Internal Use Only ...
Page 2: ......
Page 60: ...1 30 Phaser 7500 Printer Service Manual General Information ...
Page 448: ...3 310 Phaser 7500 Printer Service Manual Error Messages and Codes ...
Page 484: ...4 36 Phaser 7500 Printer Service Manual General Troubleshooting ...
Page 544: ...5 60 Phaser 7500 Printer Service Manual Print Quality Troubleshooting ...
Page 545: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments Calibrations ...
Page 554: ...6 10 Phaser 7500 Printer Service Manual Adjustments and Calibrations ...
Page 562: ...7 8 Phaser 7500 Printer Service Manual Cleaning and Maintenance ...
Page 900: ...9 118 Phaser 7500 Printer Service Manual Parts List ...
Page 958: ...10 58 Phaser 7500 Printer Service Manual Plug Jack and Wiring Diagrams ...
Page 980: ...11 22 Phaser 7500 Printer Service Manual Reference ...
Page 990: ...I 10 Phaser 7500 Printer Service Manual Index ...
Page 991: ......