OKI C5800Ldn Led Printer "121 fatal error" Questions

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Question about OKI C Office Equipment & Supplies

3 Answers

...fatal error 121 Is there anything I can do to solve this problem 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 ...

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Question about OKI C Office Equipment & Supplies

2 Answers

Fatal Error 121 Hi and welcome to Fixya! "Fatal Error" on your printer display or status monitor simply means a problem has occurred requiring action to clear. Fatal Error explanations are not usually

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Question about OKI C Office Equipment & Supplies

1 Answer

...121: fatal error It is not exactly "fatal", it is related to LSI power supply or disturbance in it communication with high-voltage LSI chip, try this solution first: 1. switch off the printer and ...

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