Question about OKI C5100n Laser Printer

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Non-printing gap/line down page

On my OKI C5250 color laser printer, a 3mm thick 'white line' (i.e. non-printing gap), from top to bottom of the page, appears one inch in from the right hand side of the printed page. However, if there is an embedded graphic, the 'white line' does not appear (suggesting a software rather than hardware problem). Can any of you geniuses help me? Thanks

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  • 2 more comments 
  • Zeb Daniels Mar 11, 2007

    Thanks. In fact I have now solved the problem. A tiny screw had fallen off inside the toner cartridge and fallen to the bottom blocking a small part of the toner 'opening'. Once removed, all is well.

  • Anonymous Mar 19, 2014

    It is like the toner is not coming out of that part of the printer. I replaced the toner cartridge and printer about 30 pages and it is still leaving that line. Is there something I can clean, how do I clean that thing? thanks

  • Anonymous Mar 26, 2014


  • Anonymous Mar 29, 2014

    by using tally9 software in this we can't print the head line on top page.How i do?



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Hey Danzo, This error is usually caused by dirt (usually toner) on the laser lens. There should be a cleaner pad somewhere on your machine (though I am not totally familiar with Oki) that will wipe across the lens. If there is no pad, you may have to find access to the lens and wipe it manually with a tissue or similar

Posted on Mar 11, 2007


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Nov 13, 2007 | OKI C5100n Laser Printer

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Oki c5100n printing colors offset

posted by Halfwalkeer on Nov 13, 2007 Report abuse

Just replaced the color toner cartridges in the c5100N, two OKI (cyan and yellow) and one non-OKI (magenta). Now it appears that registration is completely off.

When printing an image, there is a band of yellow at the top about 6mm high, and a band of purple (not cyan) at the bottom about 6mm high. It seems that the yellow printing LED array is printing offset. I've verified this with a typical test page that shows yellow blipped up by several mm.

What the hell happened ? How can I fix it ?

Thanks -

Comment by Halfwalkeer, posted on Jan 02, 2008 Drums are all at 34%. Please don't tell me that the drums only have a 50% lifetime on them, because that would just suck royally. When you say the problem is most likely drums, in what way ? What could have gone wrong ?

I was able to more or less fix the problem ... It took several iterations of ColorMenu->Adjust Registration followed by Maintenence Menu->Menu Reset, but it was finally able to pull the registration back into line.

I got worried at one point - after it was "fixed" the printer was powered off. Upon powerup again, registration was off by several centimeters ! Another round of the above finally "fixed" it again, but I haven't powered it down again.

It was a cheap printer. Maybe this is why ...
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What is the stats % of drums if low under 50% change them, soon as you add non Gen you throw a spanner in any attempt to fault find, fix is possible toner more than likely drum/drums, do a print of each colour and change drums as indicated by failure in its colour to print, check transport belt is OK and led heads are clean
Comment by Soulvisitor, posted on Jan 02, 2008 I was thinking about the band of yellow being caused by cleaning blade wearing on drum, drums are garenteed by oki if over 50 %, under that one is on their own ie purchase new if having problems with them

If you can fix problem doing colour calibration then faulty drum is not likely the issue.

Cant stress how many problems are caused by non gen consumables in machines, highly dont recommend their use.

Nov 13, 2007 | OKI C5100n Laser Printer

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