Question about Xerox Phaser 7750DN Laser Printer
Error code 44
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: xerox Phaser 7750 code 35
Somehow you jarred the fuser. Turn the machine off and reseat the fuser. Open the left side door, there will be 2 thumb screws.
Remove and reseat the fuser, if that doesnt work you have to replace the fuser.
Posted on Apr 05, 2008
SOURCE: I keep getting Error code
That is the fuser fan. It is either running slow or stalled.
You have to remove the rear and top cover to access it. It is located on the upper right back side of the machine looking from the rear.
You can remove the fan, peel off the silver label then remove the small rubber cap in the middle. Behind that rubber cap is the fan bearing, It is dirty and needs to be cleaned.
You can flush it with alcohol then add a highly refined oil to that bearing, Replace the rubber cap and then clean the outside with alcohol, then put a small piece of tape over the rubber cap to keep it in place. Most of the time. I would say 75 % of the time that will fix the problem. If it doesn't fix it in the long term you wol have to replace the fan. Don't call Xerox directly, Go onto google and look up a business called " the parts drop". Call them and ask for Britt or Joe> I dont work for them, but have purchased parts from them for years. They are reliable, fairly priced and honest. Great people to do business with.
Posted on Sep 26, 2008
Try something, Send a job with 5 pages to it.
Shut the machine off as a page it halfway out of the exit area.. Open the machine and look at the jammed copies. Are they clear in the imaging unit areas but not upon exiting the machine?
If the image is clear around the drums and imaging unit, then the problem would be in the fuser. If the image is grainy and fuzzy in the image area, You could have a bad second BTR roller, the soft black roller on the left side door. One of the developer housings could be bad. You have to remove the imaging units and look in the opening with a flashlight to see if the developer housing brush is thick on the developer roll.
Could have a bad transfer belt or one of the color housings could be bad.
Less likely is a bad laser. But have you taken the wand that is on the front cover and cleaned the laser exposure slots?
Posted on May 15, 2009
SOURCE: Error code 7-402
Tray 2 rollers near end of life. Buy a new set of rollers 600K78460, and then reset the counter in the diags.
Some 7750's can't be reset, in which case you need to buy an Engine Controller Board 116-1811-00
Posted on Jul 31, 2009
Cheap fix : reset the Developer Life Count in the Service
Tools menu. Hold down the back ARROW key with the "i" them with your other hand turn on the machine.
Expensive fix : What has happen is that the developers have come to the end of the life and once it gets to a certain page count it will print out no more until you have replace the developers. One thing xerox forgot to do is reset the engine control board too for this machine. So you might need a new engine cotrol board too.
1. Replace the Developer
2. After the Developer has been replaced, reset the Developer Life Count in the Service
NOTE: It is recommended that all the Developers and Beads be replaced at one time rather
than on sccessive visits.
Posted on Oct 29, 2009
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