DM-2000 (serv.man41). Countermeasure for black stripes when using SPF, and for occurrence of E7-04 error message - Sharp Copying Equipment Technical Bulletin (repair manual). Page 2

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LS20021012-1
Sharp Electronics (UK) Ltd., Technical Services Group
4.  Close the SPF and execute simulation 53-09. The white level of the read white
correction sheet is displayed, and this value should be greater than 100. If it is not,
check the SPF white correction sheet for signs of contamination or deterioration.
MCU firmware version 5.32 has been added to production from October ’02.
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