Question about Panasonic DP190 All-In-One Laser Printer

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DP-190 Blank Copies

I had to replace the write unit in a panasonic DP-190 and now the copies come out blank. I've taken the machine apart 3 times and even tried to put the old write unit back in with no luck. I've checked and reseated connections and also changed drum and developer and the trasfer roller seems to be ok. Any ideas?

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  • Paul Homuth
    Paul Homuth May 11, 2010

    first do a internal print out.

    fax button-function-6-4-start

    something will print out let me know if that is blrank


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By the write unit i guess you mean the LSU. If you've already ruled out the the image drum and transfer roller you're only left with a few possibilities. I'm also guessing this fault only happened after you replaced the LSU??

1 is there something obstructing the beam from the scanner to the image drum.
2 have you damaged one of the 2 harnesses going into the LSU (check the contiuity) also check the connections on the system board.
3 The high voltage power supply may be faulty.
4 The system board may be faulty.

I repair lots of the DP180's the european version

Posted on Aug 25, 2008

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