10/2006
8-21
Phaser 8510/8560MFP Multifunction Product
Image Output Terminal
Theory of Operation
Initial Issue
WARNING
When servicing the system be careful of the purge system as it passes the Printhead. If
a damaged wiper blade of the purge system catches on the Printhead, it could propel
hot liquid ink upward into your face.
Figure 21 Printhead Wiper Blade
Transfix and Exiting
Transfixing and exiting consists of four major functions:
1.
Stage the paper for rendezvous with the image on the drum and transfix roller nip.
2.
Load the transfix roller and engage the drum stripper blade assembly.
3.
Strip the paper from the drum.
4.
Exit the paper from the system, or exit the paper for 2-sided printing.
Tripping the preheat exit sensor sets up a series of events that occur on a predetermined
schedule. Paper is transported through the Preheater to thermally prepare it for transfixing.
The preheat sensor detects the paper’s presence and accurately references the leading edge
of the paper with the image on the drum. Based on the timing information from the paper Pre-
heater exit sensor, the transfix roller lowers onto the leading edge of the media in the nip. Tim-
ing is based on the sensor ensuring the image is perfectly aligned for transfix to the paper. The
process drive lifts and lowers the transfix roller.
At the point which the transfix roller is loaded, but before the drum begins to rotate, the paper
stripper solenoid is engaged. The paper stripper is actuated by energizing the paper stripper
solenoid. The solenoid mounts on the upper inner duplex guide and activates the strip solenoid
lever. The lever rotates the paper release carriage until it hits the transfix ground pins, causing
the paper release blade to momentarily drop onto the deadband of the drum. This action
catches the leading edge of the sheet of paper and guides the paper to the rotating exit rollers.
After the transfix roller is engaged, the drum rotates to advance the paper and transfix the
image. All gears move to rotate the drum transfix camshaft to bring the transfix roller into con-
tact with the drum. The transfix roller nip applies the load necessary to transfer the image to
the paper from the drum. Once the image is transferred, the drum stops rotating and the trans-
fix roller is lifted by the process drive.
Summary of Contents for PHASER 8560MFP
Page 1: ...701P01133 October 2006 Phaser 8560MFP Multifunction Product Service Documentation...
Page 4: ...10 2006 iv Phaser 8510 8560MFP Multifunction Product Initial Issue Introduction...
Page 22: ...10 2006 1 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Service Call Procedures...
Page 28: ...10 2006 2 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Error Messages and Codes...
Page 84: ...10 2006 3 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Image Quality...
Page 116: ...10 2006 4 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Repairs and Adjustments...
Page 194: ...10 2006 5 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Parts List...
Page 204: ...10 2006 6 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Diagnostics...
Page 256: ...10 2006 7 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Wiring Data...
Page 274: ...10 2006 8 2 Phaser 8510 8560MFP Multifunction Product Initial Issue Theory of Operation...
