How to solve the error "C7990" displayed on Kyocera FS-1120MFP FS1040 1020 series printer when use compatible chip TK1110?
2025-05-29
When replacing the TK1110 chip, the Kyocera FS-1120MFP printer's panel prompts "C7990". How to solve it?
Let’s take a look at the specific operation methods below：
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