Sharp FO-475TH Service Manual page 71

UX-258TH
FO-475TH
3. Shading paper
The white and black basis is applied to remember the shading wave-
form. Be sure to perform this operation when replacing the battery or
replacing the control PWB. Execute in the shading mode of DIAG mode.
UX-108/178 SERIES SHADING WAVE MEMORY STANDARD PAPER (PSHEZ3354SCZZ)
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