Top 20 OKI C5800dn Laser Printer - Page 5 Questions & Answers


When you remove the duplex unit you must turn the power off first. Once you have removed the paper you should clean the black rollers with platen cleaner. Clean any muck from the white rollers then refit THEN turn the power back on.

OKI Office... | 179 views | 0 helpful votes


When character pitch is blinking and the alarm light is on it means there is a temperature fault in the print head. A new head should cure it.

OKI Office... | 74 views | 0 helpful votes


Open the main cover. Look up inside it and there you will see the long black printhead (A4 wide) hanging down. It will have a white flat cable connecting it to the machine.

OKI Office... | 33 views | 0 helpful votes


The fan on the left side of the chassis has either failed or is running slow. They do however get quite a lot of dust and c--p on them and that can slow them down. Remove the left side cover and clean the fan. If that does not cure it then a new one is required. The part number and description are: 43289101 OR-Motor-FAN(80). Any OKI dealer should be able to get it for you.

OKI Office... | 400 views | 0 helpful votes


The toners that you have bought are most probably not for your country or have the chips missing so the machine cannot identify them correctly. If they have no chips you can remove the old ones and fit them to the new ones. I would just send them back to your supplier and get the correct ones.

OKI Office... | 441 views | 0 helpful votes


throe in bin best as these are obsolete

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Change the printer properties to use paper from the automatic feeder tray. And, unless you are in Europe, you probably don't want to specify A4 paper. Try "letter" or some other size.
The manual is at this URL. See page 49 http://www.manualslib.com/manual/113847/Oki-B4545-Mfp.html

OKI Office... | 78 views | 0 helpful votes


Okidata B710 and B720 Maintenance Reqd. Reset Procedure
To enter the Diagnostics area:
Turn the printer power OFF.
Press and Hold the MENU^ and Enter buttons.
Turn the printer power ON (you can release these buttons as soon as "loading ... '' is displayed.
The Operator Panel reads "Diagnostics"
There is a list of Test Options and settings.
Press the Down Arrow highlight "Maintenance Info." Press the Enter button
The Operator Panel Display reads "Maintenance Info" with setting listed.
Reset Maintenance reqd. is highlighted. Press Enter
Reset Maint. Reqd. is displayed and Execute is highlighted.
Press Enter.
The Display reads - Resetting Maintenance Required.
This completes the process.

OKI Office... | 1,804 views | 1 helpful votes


There are paper path cleaner sheets that you can get at supply stores or on line. They are sticky on both sides. They pick up paper dust from the rollers as it passes through the printer.

OKI Office... | 175 views | 0 helpful votes


The low voltage power supply is located in the bottom right side of the machine. Remove the right side cover and you will see it at the bottom of the machine. It is the full length of the unit. All you can do is check the fuse but its unlikely to be at fault unless there was a power surge at some time. If the PSU has blown then the cost of a new one and fitting will be more than half the value of the whole machine.

OKI Office... | 478 views | 1 helpful votes


The machine is failing to initialise. If you can get it into download mode then its possible to flash the eeprom with the latest version from OKI's site

OKI Office... | 160 views | 0 helpful votes


You have not told us what model you are referring to. Obviously its a mircoline model but which one as believe it or not they do differ.

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The answer to your question is on the office depot website and it catches fire at 450 degrees F. So your answer is no it cannot accept 467 degrees.

OKI Office... | 56 views | 0 helpful votes


Looking at the operation panel, to left and slightly underneath it is the scanner lock. There are symbols on it with a padlock. Slide the catch to the unlocked position. You probably caught the catch and unwittingly locked it or partly locked it.

OKI Office... | 61 views | 0 helpful votes


You cannot repair this error easily. Most times its the main board that has the problem but its more than likely to be the scanner pcb than the main board. I am actually in the middle of the very same error and have tried the main board and it is the scanner pcb that is causing this particular problem. As you do not state what model you have , I cannot give you a part number.

OKI Office... | 378 views | 0 helpful votes


The fuser lamp has blown therefore not generating any heat. Best buy the complete fuser.

OKI Office... | 161 views | 0 helpful votes


The usual cause of "fake" paper jams is a prior "real" paper jam. One of two things occurs.

  1. A small bit of paper tears off the jammed stock and hides from view, but keeps the printer jammed. These can be hard to find and remove, depending upon where they are.
  2. In the process of yanking the jammed paper out of the unit, the sensor(s) become damaged or misaligned and give false jam indications. This usually needs repair or replacement.

OKI Office... | 516 views | 1 helpful votes

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