
Theory of Operation
2-11
Transfer Roller Assembly Control
Detecting the Installation of the Transfer Roller Assembly
Although there is no seperate sensor for this, the output of the CTD Sensor is used to
detect installation or absence of the Transfer Roller when power to the printer is
turned on, or the front cover is opened and closed.
Light emits from the LED of the CTD sensor with the specified intensity and if the
output of the CTD Sensor is greater than the specified value the controller signals that
the Transfer Roller is present (installed).
If printing is stopped by a jam, the toner image will be placed on the Transfer Roller.
In this case the sensor output result is low, causing the controller to report the Transfer
Roller as missing. To prevent this, the Transfer Roller is rotated a half turn if output is
lower than the specified value. If the output of the CTD sensor is than greater than the
specified value, the controller reports installation of the Transfer Roller. If the output
remains less than the specified value, the controller reports that the Transfer Roller is
not installed.
Detecting the Life of the Transfer Roller Assembly
The Transfer Roller Assembly consists of a bias transfer roller and a waste toner
recovery space. End of life of the Transfer Roller is detected when the waste toner
recovery space becomes full.
The full waste toner recovery space is detected by the Toner Full Sensor.
1.
Status of the waste toner recovery space is checked:
■
When the power is turned on.
■
When the front cover is opened and closed.
■
When paper exits the print engine.
2.
“Transfer Roller is at End of Life” error message is generated when the toner full
sensor detects the waste toner recovery space is full.
3.
“Replace Transfer Roller ” warning message is generated if the print count and
the toner dispense time are counted and the total count exceeds 15,000 prints.
4.
“Transfer Roller is at End of Life” error/ “Replace Transfer Roller ” warning
messages are reset if the toner full sensor does not detect a full waste toner
recovery space when power is turned on, or the front cover is opened and closed.
Содержание Phaser 6250DT
Страница 1: ...Service Manual P h a s e r C o l o r L a s e r P r i n t e r 6250 ...
Страница 2: ...manuals4you com manuals4you com ...
Страница 39: ...1 16 Phaser 6250 Color Laser Printer Service Manual ...
Страница 181: ...4 20 Phaser 6250 Color Laser Printer Service Manual ...
Страница 207: ...5 26 Phaser 6250 Color Laser Printer Service Manual ...
Страница 216: ...7 Chapter Cleaning and Maintenance In this chapter Service Preventive Maintenance Procedure Recommended Tools Cleaning ...
Страница 219: ...7 4 Phaser 6250 Color Laser Printer Service Manual ...
Страница 342: ...Service Parts Disassembly 8 123 8 Repeat Steps 1 7 to remove the lower guide 6250 278 ...
Страница 359: ...8 140 Phaser 6250 Color Laser Printer Service Manual 13 Remove the Guide Assembly Right by rotating the top in 6250 418 ...
Страница 361: ...8 142 Phaser 6250 Color Laser Printer Service Manual 7 Remove the Guide Assembly by rotating the top inward 6250 420 ...
Страница 369: ...9 4 Phaser 6250 Color Laser Printer Service Manual Print Engine Parts PL 1 1 Covers 6250 286 ...
Страница 373: ...9 8 Phaser 6250 Color Laser Printer Service Manual PL 3 1 Paper Feed I 6250 288 ...
Страница 375: ...9 10 Phaser 6250 Color Laser Printer Service Manual PL 3 2 Paper Feed II 6250 289 ...
Страница 377: ...9 12 Phaser 6250 Color Laser Printer Service Manual PL 3 3 Paper Feed III 6250 290 ...
Страница 379: ...9 14 Phaser 6250 Color Laser Printer Service Manual PL 4 1 Housing Assembly Retard 6250 291 ...
Страница 381: ...9 16 Phaser 6250 Color Laser Printer Service Manual PL 5 1 Chute Assembly In 6250 292 ...
Страница 383: ...9 18 Phaser 6250 Color Laser Printer Service Manual PL 6 1 Chute Assembly Out 6250 293 ...
Страница 386: ...Parts List 9 21 This Page Intentionally Left Blank ...
Страница 387: ...9 22 Phaser 6250 Color Laser Printer Service Manual PL 7 1 Chute Assembly Exit 6250 294 ...
Страница 389: ...9 24 Phaser 6250 Color Laser Printer Service Manual PL 8 1 Transfer Roller Fuser Assembly RMIs 6250 295 ...
Страница 391: ...9 26 Phaser 6250 Color Laser Printer Service Manual PL 9 1 Xerographics 6250 296 ...
Страница 393: ...9 28 Phaser 6250 Color Laser Printer Service Manual PL 10 1 Holder Toner Cartridge Assembly 6250 497 ...
Страница 395: ...9 30 Phaser 6250 Color Laser Printer Service Manual PL 11 1 Frame and Drive Assemblies 6250 297 ...
Страница 397: ...9 32 Phaser 6250 Color Laser Printer Service Manual PL 12 1 Electrical S6200 240 ...
Страница 399: ...9 34 Phaser 6250 Color Laser Printer Service Manual PL 13 1 Harness Assemblies 6250 299 ...
Страница 405: ...9 40 Phaser 6250 Color Laser Printer Service Manual PL 14 4 Paper Pick Assembly Trays 3 4 6250 484 ...
Страница 407: ...9 42 Phaser 6250 Color Laser Printer Service Manual PL 14 5 High Capacity Feeder Harness Board and Motor 6250 485 ...
Страница 411: ...9 46 Phaser 6250 Color Laser Printer Service Manual PL 15 3 500 sheet Feeder Guides and Turn Chute Assembly 6250 428 ...
Страница 413: ...9 48 Phaser 6250 Color Laser Printer Service Manual PL 15 4 Paper Pick Assembly Tray 3 6250 429 ...
Страница 421: ...9 56 Phaser 6250 Color Laser Printer Service Manual ...
Страница 427: ...10 6 Phaser 6250 Color Laser Printer Service Manual Map 1 FPC Front Panel Connector 6250 306 FPC ...
Страница 428: ...10 7 Map 2 6250 307 ...
Страница 429: ...10 8 Phaser 6250 Color Laser Printer Service Manual Map 3 6250 308 ...
Страница 430: ...10 9 Map 4 6250 309 ...
Страница 432: ...10 11 Map 5 6250 487 ...
Страница 434: ...10 13 Map 6 6250 431 ...
Страница 455: ...10 34 Phaser 6250 Color Laser Printer Service Manual ...
Страница 456: ...A Appendix Appendix Contents Printer Status Codes ...
Страница 466: ......
Страница 467: ...071 0869 00 ...