Kyocera Multi-function FS1028MFP C7990 Error Code

 

Kyocera Multi-function FS1028MFP C7990 Error Code Instructions

Below you will find the service manual information for the Kyocera Multi-function FS1028MFP C7990 Error Code along with additional details to explain what can cause the problem and followed by solutions that might help you fix it. If I have additional information from past experiences I will try to add it. 
Kyocera Multi-function FS1028MFP C7990 Error Code

Service Manual Instructions for the Kyocera Multi-function FS1028MFP C7990 Error Code

7990 Waste toner full
Description :
The waste toner sensor has detected that the waste toner reservoir (drum unit) is full.
Causes :
Waste toner reservoir (drum unit) is full.
Defective waste toner sensor.
Defective control PWB.

Solutions :
Turn the main power switch off/on to restart the printer.
If the error is not resolved, replace the drum unit.
Replace the waste toner sensor.
Replace the control PWB

Remember, not every error is exactly the same. What fixes the Kyocera Multi-function FS1028MFP C7990 Error Code one time might not solve it the next time. While the information above comes from the service manual and generally should get your machine up and running, sometimes other factors might be in play.

If you are reading this article and have experience with this error and would like to contribute please leave a comment below. Or, if you have read this article and have additional questions then ask. If I have experience with the issue then I will respond.

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