OKI C5600N Laser Printer Toner Question

This error indicates that an unrecoverable error has occurred in the fuser unit.

Check that the same IP address is set for the machine and the machine`s port setting on the computer. Check that the IP address is not duplicated by another device. Check that the correct IP address, subnet mask, and gateway address are set. If using OKI LPR Utility, check the IP address setting with OKI LPR Utility.

Inspect the cartridge for the metal contacts. Inspect the inside of the printer for the connection point. With a lint-free/dry cloth lightly wipe the contacts on both cartridges and printer to remove any dirt, or residue being careful not to cause any damage. Replace the cartridges in the printer.

The reset key is a single use key and once used cannot be used again. All EPSON printers have inbuilt counters that count up the number of pages a printer produces, the number of head cleans executed and various other attributes. Once a critical level is reached the printer will enter its service mode.

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.

A paper jam has occurred around the front cover. When the error code 401 is displayed, paper may have automatically ejected. In this case, open and close the front cover to clear the error.

Do a hard reset on your printer. To do this you just need to turn off your printer, unplug for a few minutes and then plug the printer again. If that still doesn`t work, try turning the printer and your computer off, and then start it back up again. Try uninstalling and then reinstalling your printer driver.

1: Check Printer Power, Cables, and Paper

Check that the correct paper is properly loaded into the printer and is not jammed. Replacing damaged cables, plugging in loose or disconnected cables, and fixing paper jams as necessary may resolve the issue.

First, remove and reinstall the designated cartridge 2-3 times until it securely sits in the slot to overcome an HP printer cartridge error. Next, turn off the printer and take out all the cartridges. Gently wipe the cartridge and carriage contacts with a dry, lint-free cloth and reinstall again.

This error message is usually the result of a cartridge that is not firmly seated in its designated slot. To troubleshoot the problem, begin by completely removing the cartridge from its port. Reinstall the cartridge by positioning it so that it snaps into place and is securely fastened in its slot.

Clean the Cartridge Contacts: one of the most common reasons you might get a cartridge problem error when your cartridges are new and full is the contacts on the cartridge might be dirty or otherwise obscured from making good contact with the electronics in the printer head carriage.