Question about Tektronix Phaser 780P Laser Printer

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Xerox Phaser 780

The printer will not print colour only black.

It was printing ok but all of a sudden stopped. We have changed the imaging unit. any ideas

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  • marcobaldi Dec 10, 2008

    only print black and white now, suddenly

  • MrTs Dec 24, 2008

    I managed to find another fuser draw assembly and swapped the heated rollers over from the faulty fuser into the new one and it solved the problem. Sadly I never found which part was defect but its now working.
    great!
    Dave T

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My Lions club was given a 780 and most of the time it will print one sheet at a time OK. But trying to print multiples it stops half way thru the fuser or on the exit side of the paper is printed. We have replaced the fuser, imaging unit, waste canister. This printer has great features and quality. We really would like to use it to it fullest potental. Your thoughts.

Posted on Jan 29, 2010

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This problem occurs do to a defect in the fuser drawer. In the fuser drawer, there are two black plastic parts that can go up or down. Their function is to push the belt cleaner on and off the accumulator belt after every pass. A defect in this system causes these parts to stay up, pushing the belt cleaner on to the belt every step except the last one, causing only the black toner to remain on the belt.
It's hard to track what the exact cause is but I would recommend checking gearing and gear teeth in your fuser drawer.

Posted on Dec 23, 2008

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Posted on Jan 02, 2017

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