ok, sim 10 makes the motor turn strong. i ran sin 25-01 and dev unit turns ok. i checked the shutter and it seems fine. the drum did have a black dusting, and in years past with say, a sharp ?SF 8600 if the erase lamp went bad, the machine would keep warming/ toning up till the hopper was empty and call for toner. so i pulled the charge, but as i said, without a new CRUM, it wont do anything any darn how. so, i told customer it needs a new control board and an OEM toner. i made the mistake yesterday of telling her i may be able to get a CRUM so the full toners could be used. so, she don't want to buy any more toners. so, if they approve the board, i hope that the replacement crum's i found on amazon will actually work. i still may tell her i am not going to risk anymore questionable parts. also, i will ask Hytec if a aftermarket crum would work.
thats the deal so far. thank you very much for the support. i do really appreciate it. Jim
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