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Sep 7, 2021 - An error code of E602-0020 appears either by running a communication test from the control panel, COUNTER>MONITORING SERVICE>YES, or by entering ...
The users manual says when you get this error to reboot machine and if the error doesn't go away the problem can only be fixed by an authorized service provider.
Please check the settings in your printer that you have selected correct paper type and tray from which you are printing. Also while giving print command make sure paper size is same.
error code 0020 is currently unkown, however it is possibly overheating. and 0021 is caused by a timeout on the dvd drive or a GPU error, try re-heating the chips using a blow dryer on low heat for 10-15mins.
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