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How do I fix H4 code on a Sharp SF-755 copy machine?

How do I fix H4 code on a Sharp SF-755 copy machine?
Dave H., October 2009
H4 is a heater error and the fixing unit needs to be serviced. You can clear it by turning the copier on and opening the front cover, on the keypad input clear-repeat-0-pause, then 14 & START

chamb68, November 2009
link Click here to see other fixes for Sharp.