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Our Sharp AL-1645cs copier shows an H4 command in the display. What does this refer to ? thank you for showing us how to fix this problem. Thanks

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The problem on your machine is on the fusing unit, the temperature in the fusing unit is low to start the machine. To cancel the trouble status follow these steps:
Press CONTINOUSLY the following:

STEP1. Press CLEAR key then EXPOSURE key then CLEAR key then EXPOSURE key

STEP2. Then you are inside the simulation if the display turns OFF if not do again step 1 until the display turns off.

STEP3.press 14 then press print button

The machine will now cancel the trouble status and ready to used. If not cancelled and again H4 exist it means that there is a part inside the fusing unit that is busted like the thermostat. With this you should now contact your authorized serviceman to check your machine .


Posted on Feb 27, 2009

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Hello, NICOLAS

Let me give you, a url when you can find sharp error codes and fix by youself, if you have any other cuestion, please write a comment, im here for help you.

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http://www.en.rellenadodecartuchos.com/2014/05/how-to-solve-h4-subcode-00-error-message-on-sharp-al-2030-copiers.html

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I have a tip posted here on Fixya that resolves this problem easily.
Here is the link:
http://www.fixya.com/support/r4376849-sharp_al_series_copier_h3_h_3_code_reset

If it works for you then please return here and provide feedback for me that I was helpful.
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