Epson WorkForce Pro WF-R8590 DTWF - Manual (Page 149)

4. Clean the part that is shown in the illustration.
Note:
❏ If the glass surface is stained with grease or some other hard-to-remove material, use a small amount of glass cleaner
and a soft cloth to remove it. Wipe off all remaining liquid.
❏ Do not press the glass surface too hard.
❏ Be careful not to scratch or damage the surface of the glass. A damaged glass surface can decrease the scan quality.
Cleaning the Scanner Glass
When the copies or scanned images are smeared or scuffed, clean the scanner glass.
c Important:
Never use alcohol or thinner to clean the printer. These chemicals can damage the printer.
User's Guide
Improving Print and Scan Quality
149