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Sharp Z-820 copier error code H 4

Hi, My copier is blinking H and 4, any idea what to do? I bought the machine at a garage sale and don't have the manual. Thanks!
Debbie

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  • 1,362 Answers

Replace the thermistor in the fuser unit.

At the exit there is a unit with two big rollerrs, this is the Fuser unit there is a sensor there that regulates the temperature, it is bad, replace and it should be OK, not sure if you have to clear the code internally.

Posted on Aug 28, 2008

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While starting the xerox machine SHARP AR 5316 , indicator is showing 4 and blinking everytime, unable to take the printout


I'm going to guess that if you watch the display closely, it is alternating between an "H", and a "4". If that is the case, you have an "H4" error code. This is a fuser error and can either be a freak out from the machine, or an indication of something serious. I would recommend resetting the code and seeing if it comes back. To reset the code, turn the machine on and press "#" -> "Interrupt" -> "Clear" -> "Interrupt". Doing this should put you into service mode, where the display will show a blinking double dash (--). Enter 14 and press the green start button, just like you are trying to make 14 copies of something. At this point, the machine should restart itself and hopefully the error code will go away. If the error code does not go away, or recurs on a fairly frequent basis, I would recommend contacting a professional service technician.

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My sharp ar5320 has an error code blinking it flashes h 4 what would i do?


On your keypad press in order # * C * .That will put the machine in diagnostics. Then enter 14 like you were making 14 copies. then press 1, then start, that will reset the machine.

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Source here.

Hope this gives you some idea, unfortunately I'm not sure how to resolve these error on this particular copier.

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Hope this helps.

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H 4 error


If the Reset does not work, then you have a fuser error and your machine will need service.
H4 is a fuser heating error code.
Meaning the machine is not warming up because of a bad lamp, thermal fuse, thermostat, and or thermister.
Hope this helps.
Good luck.
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Hi, H4 is a heater error. Try resetting it by the following; Enter #, interupt, Clear, interupt, display goes dead, enter 14 then print. That will clear the error code, however if you have a problem with the heater it will return. It is probably the thermal fuse has tripped, which is resetable by removing the fuser unit

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