20 Most Recent Xerox Phaser 7750 Laser Printer Questions & Answers


It sounds like one of the cover or tray sensors is not working correctly. Check the actuator on the fuser cover, sometimes these break off so the printer thinks the cover is still open. If that seems ok and you have a lower tray deck unplug it to eliminate them as the cause.

Xerox Phaser... | Answered on Apr 14, 2017


Yellow ATC Sensor Failure,Code12
Magenta ATC Sensor Failure,Code13
Cyan ATC Sensor Failure,Code14
The ATC Sensor detects an insufficient amount of developer.

Note
If this failure reoccurs three times successively, an Engine NVRAM value is set preventing further printer use until the Clear Tech Rep Fault (see pg.6-20) is performed.

Troubleshooting Procedure
Step Actions and Questions Yes No 1 Is the problem toner and/or developer empty. Replace the toner or developer. Go to step 2. 2 Is the ATC sensor clean and free of dust, toner or any other contaminates? Go to step3. Clean the ATC sensor. 3 1.Check the ATC sensor wiring harness Yellow=P/J129
Magenta=P/J130 Cyan=P/J131
2.Is the wiring harness or the sensor defective? Replace the ATC Sensor and/or wiring harness. Go to step 4. 4 1.Remove the Rear Cover and RearShield.
2.Measure the voltage at...Yellow=P405B3 Magenta=P405B8 Cyan=P405A10
on the engine control board.
3.Is the voltage between+1 and
+3VDC? Replace the engine control board. Go to step 5. 5 1.Measure the voltage at...Yellow=P405B14 Magenta=P405B11 Cyan=P405A11
on the engine control board.
2.Is the voltage+5VDC? Replace the engine control board. Go to step 6. 6
1.Measure the voltage at...Yellow=P405B2 Magenta=P405B9 Cyan=P405A9
on the engine control board.
2.Is the voltage 0VDC? Replace the engine control board.
Go to step7.
7
1.Remove the Imaging Unit Plate cover.
2.Inspect the wiring harness between the engine control board and the developer housing assembly.
3.Is the wiring harness defective? Replace the wiring harness.
Replace the ATC Sensor.
8
Run approximately 10 pages of the solid fill full-page prints for this color to ensure the error is cleared.


Xerox Phaser... | Answered on Mar 14, 2015


This printer is not capable of printing full bleed. You will have to print on oversized paper and trim it to get dull bleed.

Xerox Phaser... | Answered on Jan 22, 2014


Try this link:

https://www.support.xerox.com/en-us/article/en/1551565

Xerox Phaser... | Answered on Feb 08, 2020


Please check the HD & RAM.

Xerox Phaser... | Answered on Apr 12, 2019


I suggest You Go to Official Xerox Printer Page For You Xerox Printer Problem On Below Xerox forum URL Link: Clearing Paper Jams In Case You Still face Problem and Need Online Assistance Then Please Follow Us For On :
Xerox Printer Support

Xerox Phaser... | Answered on Aug 20, 2018


Have you tried replacing the whole drum cartridge?

Xerox Phaser... | Answered on Aug 04, 2018


What model do you have?

Xerox Phaser... | Answered on May 01, 2018

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