Sharp AR 5316 E photocopier error clearing

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U2 04 EEPROM read/write error (serial communication
error)
11 Counter check sum error (EEPROM)
12 Adjustment value check sum error (EEPROM)
40 CRUM chip communication error

40 CRUM chip communication error

press # press INTERUPT press C press INTERUPT then put 16 then start then press clear after that the machine will turn off and agin

There could be a problem of under voltage from your main supply.
using a voltmeter measure the main supply to check whether it correct as per manufacturers specifications. power off and power on again

all action bloked code: L6-10
please healp me

ERROR CODE U2-4 COULD BE RELATED TO THE MEMORY BATTERY BEING DEAD ON TEH MAIN BOSRD IF IT IS AN OLD MACHINE SO YOU COULD CHECK THSI OR REPLACE AND TRY WITH NEW

Since this appears to be a non-US model I can only base my response on the closest US body type AR-M237.

U2-40 means the countdown (CRUM) chip in your toner cartridge either broke or went to zero. If you can put in a fresh CRUM chip in your cartridge, that's great, otherwise you'll have to replace the toner cartridge.

L4-01 means main motor lock, probably due to a brownout or otherwise missed timing. You can probably get by with a power off and on. Not sharing your copier with other devices on the same outlet will also help here.

To reset error codes, put the machine in test mode with the four-key combo: # - * - C - * ... 16-Start clears your U2 trouble, 14-Start and 17-Start clear the rest. Then hit CA and allow your copier to reboot. Good luck!

try to cancel it by pressing: #-interrupt-C-interrupt simultaneously, then when the panel goes off input 16 then press the COPY KEY <> The machine will restart automatically. if U2 still remains.. try to replace the mainboard.

SOLUTION: ERROR MESSAGE U2-40, SHARP COPIER AR-5127
PRESS #
PRESS =
PRESS C
PRESS =
TYPE 16
PRESS ENTER BUTTON (the button for making photocopy)
PRESS 'OK' TWICE
Note: be fast in pressing all the buttons.
FROM EKPA ONU - (+2348055790979, NIGERIA,LAGOS)

WHEN THE SHARP AR-5316 PHOTOCOPIER IS SWITCHED ON THE ERROR CODE 4H APPEARSAND THE MACHINE CANNOT BE OPERATED. IHAVE TRIED THE SOLUTION SUGGESTED JUNE THIS YEAR BUT IT DID NOT WORK. WHAT CAN I DO TO GET THE MACHINE TO WORK? IT IS VERY URGENT.