HP Color LaserJet CM4730 Multifunction Printer series - Manual (Page 229)

Cleaning the ADF delivery system
Clean the ADF only if it is visibly marked or dirty, or if you are experiencing a decrease in copy quality
(such as streaking).
Clean the ADF delivery system
1. Open the scanner lid.
2. Locate the white, vinyl ADF backing.
3. Clean the ADF backing by wiping them with a clean, damp, lint-free cloth. Use an ammonia-based
surface cleaner only when a water-dampened cloth does not clean the ADF components.
4. Clean the scanner glass by wiping it gently with a clean, slightly damp, lint-free cloth. Use an
ammonia-based surface cleaner only when a water-dampened cloth does not clean the scanner
glass.
ENWW Clean the MFP 213