Question about Office Equipment & Supplies
A H4 code is a fuser error code. It means the fuser is not warming up correctly. I believe you must fix the problem before the code will clear. It is most likely the fuser heating lamp is blown or it looks like a candy cane. It may also be the thirmal fuse or thirmister.. Good Luck
Posted on Jun 22, 2009
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Posted on Jan 02, 2017
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