Konica Minolta 7222 - Manual (Page 256)

12-2
Cleaning Image Scanning Section
In order to maintain optimum copy quality, always keep the following areas clean.
Cleaning the Platen Glass and Cover
Raise the document feeder, and clean the glass with a clean soft cloth.
The glass may also be cleaned with a soft cloth dampened slightly with water, if it is
difficult to clean.
Never use paint solvents, such as benzene or thinners, to clean the platen
glass.
The platen cover should be kept clean; otherwise, soil marks may be copied, or the
original size cannot be detected correctly.
Raise the document cover, and clean the inner surface of the document cover with a clean
soft cloth.
Never use paint solvents, such as benzene or thinners, to clean the platen
cover.