929 fatal error on my oki 9600 printer - OKI C9600hdn Laser Printer

Fatal error code 173:
This error indicates that the Image Drum Up/Down Process is not working properly. The errors are as follows:
140 - Yellow Drum Up/Down error
141 - Magenta Drum Up/Down error
142 - Cyan Drum Up/Down error
Solution:
1. Reseat the Image Drums. Ensure they are in seating properly into the drum carriage.
2. Reseat the Toner Cartridges. Ensure they are seating properly into the Image Drums.
3. Reseat the Contact Sensor Spring assembly and inspect it for damage or mis-alignment. If the springs appear bent or dis-lodged reseat them.

all oki errors are fatal errors, there will be a 3 digit number that will tell what the error actualy is

The 929 fatal error

Waste Toner
Transfer Motor
Lock Error.

The waste toner transfer motor is not operating properly. Does the error still occur? Yes

Check to confirm that the waste toner transfer system is operating properly.

Replace the waste toner motor.

check mechanical error on your printer by sending it to the actual technician..

tengo una impresora oki y me muestra error fatal en la pantalla que debo hacer para quitarle ese error de mi impresora

Replace the transfer belt unit. A 917 is a belt **** sensor error.

We had a similar problem with an Oki C7300. It was reading "Fatal Error 121" on the display.

We fixed it by simply unplugging the printer from a surge strip and plugging it into the wall directly. After that, the error went away and has not come back.

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

From OKI error list:

Error 172 - Upper Heater Temp State: High
Heat Roller Thermistor indicates high temp

Solution:
Turn off printer, let cool down.
If problem still exists seek service

the problem is on the fuser unit, ther thermistor on it is damaged.