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Text excerpt from page 74 (click to view)
UX-P400DE/IT/SE/H NX-P500DE/IT/FO-P600IT 3. Shading paper
The white and black basis is applied to remember the shading waveform. Be sure to perform this operation when replacing the battery or replacing the control PWB. Execute in the shading mode of DIAG mode.
SHADING WAVE MEMORY STANDARD PAPER (PSHEZ3579SCZZ)