Top 20 OKI C5800dn Laser Printer - Page 6 Questions & Answers

enter service mode
in okiuser change from oel to aps usually works for me

OKI Office... | 606 views | 1 helpful votes

when cover open in oki c 301 dn then push pull switch is UN link and information show cover open in printers or copiers. just change push pull switch or clean that with ctc the switch you can search on casing were the cover is close and can push that.

OKI Office... | 287 views | 0 helpful votes

it means FUSER MOTOR LOCK ERROR call a tech or you could try replacing the fuser motor

OKI Office... | 283 views | 0 helpful votes

vacuum it out

OKI Office... | 34 views | 0 helpful votes

It may be specific to your OKI printer driver. Refer to it's manual.

OKI Office... | 72 views | 0 helpful votes

Remove the toner waste bottle, clean out the whole box and duct work. While there clean out the whole unit. Restart the unit by unplugging it and hopefully it will be ok. Sometimes the power board goes but hope for the best.

OKI Office... | 661 views | 1 helpful votes

Probably you can't unless you have the repair kit and the technical knowledge. Find a techician to do it.

OKI Office... | 408 views | 1 helpful votes

Most likely needs service. To many things wrong at once.

OKI Office... | 100 views | 0 helpful votes

They probably changed the setting in your operating system. Do you have windows or apple? Beyond that, do you recall if they made this change at the store on the printer itself, or were they tinkering with your PC when they made it monochrome?

OKI Office... | 473 views | 0 helpful votes

Fix your printer
Here is a link that may help. Please read ALL of the entries to make sure you get the correct information.

OKI Office... | 101 views | 1 helpful votes

You cant. laser printers (or led like oki) or more specifically dry toner electrostatic printers always have a margin to prevent the paper from jamming. the only way to print "full bleed" is to put paper in that is bigger than what you need, print the image, and trim it down.

OKI Office... | 2,229 views | 0 helpful votes

The OKI 980 Fatal error is a Fuser that needs to be replaced. Replace the fuser

that being said you can replace the fuse on the fuser unit or you can do the option below that I DO NOT RECOMMEND

separate the fuser unit in half

Unravel and loosen the wires at the connector at the bottom of the fuser close to the edge so you can pull that connector out a few inches so you can get a couple of wires in there.

Insert a wire into each of the two holes on the back of that connector. 2 and 3 have wires going in, 4 and 5 don't which is the fuse. After you get the wires in the 2 holes. Make sure the wires are long enough to hang out the case. put the case back together and put the fuser in. connect the two wires together and power up the machine. As soon as you here the first motor, which is about 5 seconds into the startup, pull the wires apart. This will make the machine think that the fuser has been broken and reset the fuser life.

You can also purchase new fuse units from ebay etc and replace the fuse unit.

OKI Office... | 569 views | 0 helpful votes

gravity reset. seriously, hold it about 9" off the floor and drop it evenly. repeat if not fixed. this was in an oki tech bulletin. there is a ribbon cable deep inside that comes unseated. unless you want to take the ENTIRE printer apart perform the steps above. :)

OKI Office... | 664 views | 0 helpful votes

Depends on the model number - some Oki's with LCD displays can be hardware-adjusted to darken or lighten the image using the menu controls and the adjustment settings if memory serves. Otherwise, go into your printer properties in windows and choose PREFERENCES and look at some of the tabs - I think Advanced gives you some software-rendered darkening options.

OKI Office... | 95 views | 0 helpful votes

Clean the laser which is mounted under the lid. It's a thin horizontal bar. Use a barely dampened cotton cloth - NO PAPER PRODUCTS!!! - and gently wipe the shiny strip facing you from L to R once, turn the cloth and do it once more. Your print quality should be good as new now.

OKI Office... | 83 views | 0 helpful votes

if your looking at the printer as it sits on the desk it is located on the back left of the printer.

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Case 1 - PCL data problem
The printer displays Fatal Error 02 and a 24 digit number similar to 439834B4, 433AB434, 433AADE4 will appear, this can happen after a job using the PCL driver has been sent to the printer.
Care must be taken when diagnosing this fault to disconnect the interface cable from the printer before cycling the power. If the cable is still connected, the print job causing the fault may be retransmitted and the fault will reoccur, leading you to believe the printer has a permanent error.
The workaround to this problem is to move the file to be printed to a location with a shorter path-name and reprint it.
The permanent solution is to upgrade the driver to v1.1.1.

Case 2 - Network problem
The printer displays Fatal Error 02 and a 24 digit number similar to 020BFA8D00, 0BFAB31C, 0BFAD120 will appear, this can happen even when the printer is idle.
The problem is believed to be Netware related. The workaround is to turn off the Netware protocol on the printer.
The permanent solution is to upgrade the printer's network firmware to version 01.64.

OKI Office... | 143 views | 0 helpful votes

134 error is led head missing , the fault is either ( if your lucky) the k led ribbon cable has become unseated or the k ribbon pins are damaged (you can trim them with scissors.
Alternatively more often than not someone has nicked the led bar off and tried to put the cable back in without turning the printer off blowing the fuse on the maintenance board. The holders for that model are prone to cracking also.

OKI Office... | 3,778 views | 1 helpful votes

replace the fuser unit

OKI Office... | 79 views | 0 helpful votes

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