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H4 error on Sharp SF 7370

I am looking for an operators and a service manual for Sharp SF 7370 copier.

Present problem is H4 error code and I need to decipher what kind of trouble that indicates.

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The heater lamp isn't coming on either because of blown heater lamp or thermostat reset itself . Clean the thermistor and replace any of the above defective part.Then press C, 0, 0, C and press 14 press READY.

Posted on Oct 31, 2009

Low fuser temperature.....probably the heater lamp, possibly the fuse. You'll have a hard time getting either of these...and I wouldn't recommend spending any money on it anyway. I suggest it might be time to retire the old beast. Only a few hundred dollars these days to get a little Digital copier

Posted on Mar 12, 2009

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