Epson SureColor P20000 Standard Edition 64" Large-Format Inkjet Printer - Manual (Page 167)

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6. Gently wipe the light gray areas in the direction indicated by the arrows.
Note: If you see dust or paper particles on the dark gray areas (the rollers or ink absorption pads),
use a cleaning stick to gently clean them. Do not use too much force when cleaning or touch the
rollers or the ink absorption pads with your bare hands or your prints may be affected. Do not use
cotton swabs to clean these areas.
Caution: Be careful not to touch the gears or ink tubes inside the product.
7. If your product is still dirty, dampen the cloth with a small amount of water and a mild detergent and
repeat the previous step. Wipe away any moisture with a soft, dry cloth.