OKI c5750 - fatal error 918

SOURCE: Oki C5200n 002: Fatal Error

We have to change firewall settings in our Fios router. I just don't know which ports or udp to open.

Posted on Jan 08, 2008

SOURCE: laserjet 4250 not dupexing

Had this same issue on my 4250dtn. The solution in my case was that both paper trays were set to "custom". This is a small lever on the right side toward the back of the paper tray. Even HP was stumped on this. Hope this helps.

Posted on May 29, 2008

SOURCE: OKI C5500 Fatal Error 177

From OKI error log:

Lower heater temp state - Low
backup roller thermistor indicates low temp
seek service if turning off/on printer does not solve problem

Posted on Dec 08, 2008

SOURCE: says a front paper jam but no paper jammed any where

Your paper feder belt has ink on it and will not feed the paper. Remove the rubber belt and clean it good and clean and use compressed air on the printer tray area. If this does not work open the front feeder tray and set your computer to print from it. After about 500 copys it will normally have c leaned itself and be ready to feed from the main roller.

Posted on Feb 24, 2010

SOURCE: fatal error 980 OKI C5500 printer

I had a paper jam and removed the jammed papers. The paper jam cleared and then the Fatal Error 980 appeared. OKI C5500 printer

Posted on Feb 25, 2010