Anyone on here have any exerience with laser printers at all? I have been given a Samsung CLP-315W printer complete with a sealed set of toner cartridges plus an additional sealed magenta cartridge as as well. Problem is that it prints horizontal black smudges / lines across the whole page, sometimes its 1 or 2 and the position moves from top of the page the bottom and when it prints 2, the first is 1/3rd the page down from the top and 2nd line is 1/3rd up from the bottom.
The next page still has the same issues, plus a ghost image of the previous page. I have cleaned the transfer belt and also the imaging drum without any improvement.If I removed the toner artridges and look inside the printer, the transfer belt still has an image of the previous page. Any ideas what the cuprit is? ![Confused :-//](https://www.eevblog.com/forum/Smileys/default/confused0024.gif)
Most likely the drum. It has a photoelectric coating which weakens with age, and the "pre-clean" charge which is supposed to remove any residual image static charge from the drum between prints just can't do its job. One thing you can check is the "charge wire"; this may be at the drum or it may be one for each color roller. If it gets crunked up with toner powder it can't do its job right either; this usually manifests as fuzzy or "out of focus" prints but in principle it can affect the cleaning precharge as well.
There are oodles of vids on yoobToob showing diag procedures for pretty much all brands and problems; a quick Goog of "laser printer" with "ghost" and "repeating ghost" should yield lots of valid hits.
That said... the last time I had one of that family of Samsung color lasers in my possession it drove me so batty with one unrelated failure after another that one fateful day I yanked it off the desk, dragged it outside and smashed it with all my might into the concrete driveway; I swear this was not rage, but rather purely in defense of my own sanity.
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
Good hunting my friend; I recommend a couple pints before you start to lessen the likelihood of similar "explosive stress reduction events" to those I experienced. Unless you're fecking around in the neighborhood of the HV section (charge wire,etc); you wanna be stone sober and your wits 110% around you when monkeying around in those innards.
![Scared :scared:](https://www.eevblog.com/forum/Smileys/default/scared.gif)
Also, be plenty patient to allow HV to bleed off before you stick your penis-fingers in there.
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
mnem
*veteran of 1000 Psychic Wars HP service calls*