How to clear system error 20006 in Konica Minolta 240f

SOURCE: konica minolta 2430

Most likely you received this message after a toner was replaced. Reseat the cartridge and restart the printer. If that doesn't work remove all of the toner cartridges manually and reinstall.

Turn off the printer and open the top cover. Follow the toner cartridge all the way to the right side of the printer (on the white part). You should see a hole that looks like a cross. Take a pen or key and push down on the black button in that hole. While you are holding it down rotate the toner cartridge towards you. You want to get the colored roller on the cartridge about 1/2in away from the metal bar that says "consumable reorder". You should be in a position to take out the toner. Let go of the hole and remove the cartridge. Repeat the steps until all of the cartridges have been removed.

Turn the printer back on at this point. You are going to get toner not installed messages on the printer. Open the top cover and the cyan tray will be in place. Shake the toner and install. Close the cover and let it cycle to the next color (black). Repeat the process until all cartridges are installed.

If you are still getting the error you either have a bad cartridge or the carousel that the toners sit in is damaged.

SOURCE: konica minolta problem

How to reset an F34, F35, or F36 code.
Solution:
To clear the code, perform the following:
1. Turn the machine OFF.
2. Enter the 25 mode, (turn the machine ON, while pressing the 2 and 5 keys).
3. Select 1: Software Switch Setting.
4. Use the arrows on the LCD to select dipswitch 3-1.
5. Touch the OFF key on the LCD to change the data to 0.
6. Press RETURN.
7. Power the machine OFF/ON to exit the 25 mode. PLEASE. NOTE;
THIS IS ONLY TO RESET THIS CODE ,IF IT CAN;T BE CLEARED THAN YOU NEED TO Replace the temperature sensor assembly

SOURCE: "Can't Detect Genuine Toner Cartridge"

minolta printers work on "chips" if the chip atached to the cartridge is not original minolta you better change it.

SOURCE: Bizhub Konica Minolta - Error Code C1183

First check the alignment front and rear of the finisher, check the finisher exit guide rollers if the paper is exiting properly, open both rear and the front cover and check the lower gears attach is the up/down drive belt. that lower gear one might be broken by the pin slot.

SOURCE: Konica Minolta Magicolor 4690MF gives 0502 error.

machine trouble 0092 service call
This happen after I cleaned the waste box for Konica Minolta Magicolor 1600W