AS-4000 User’s Guide Maintenance H Close the flap of the color measurement unit. I Close the cover of the color measurement unit. This completes this section. Cleaning the Paper Presser If the paper presser, which holds down the substrate, is dirty, the print results will also be dirty. Inspect the paper presser before use and clean it if it is dirty. 78 Item Explanation Frequency Inspect it daily and clean it if it is dirty. Time required Approx. 3 minutes Maintenance mode Motor Drive Off Cleaning items on the Periodic Maintenance screen Rewinder section