Question about Sharp AL 800 Copier

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Error code of H 4 flashing on screen

I have a Sharp AL-800 digital desktop copier. It has been constantly flashing H and then 4. I unplugged it.. Checked for jams- etc. etc. I can't figure it out.

Can you help??

Thank you!
Brian Conlin

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  • tmsol87 Mar 15, 2009

    Pretty much the same as another person's. The H 4 keeps flashing, unplugged the machine, entered a code they said to do when we called sharp and then the machine was unplugged for quite some time and now we plugged it back in, same problem.



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Change fuser assembly

Posted on Feb 03, 2009


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The H4 code indicates the fuser may have blown the thermistor. It also could be a false error code. Try this series to clear the error and if it returns, then you'll know for sure the fuser is the culprit. To reset press the following buttons:
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