HP N9120 HP Scanjet N9120 User Guide - Page 24

3 Care and maintenance This section presents information about how to care for and maintain the scanner. • Order maintenance and scanning supplies • Clean the automatic document feeder • Clean the scanner glass • Clean the scanner fan filters • Replace the feed roller and separation pad • HP Scanner Tools Utility scanner maintenance information Occasional cleaning of the scanner helps ensure high-quality scans. The amount of care necessary depends upon several factors, including the amount of use and the environment. You should perform routine cleaning as necessary. Routine cleaning and maintenance should include cleaning the automatic document feeder (ADF), the scanner glass, and the fan filters. CAUTION: Avoid placing items that have sharp edges, paper clips, staples, wet glue, correction fluid, or other substances in the scanner. Document pages should not be curled, wrinkled, or stuck together. Order maintenance and scanning supplies You can purchase maintenance parts online. Items such as the feed roller replacement kit are available for worldwide delivery. 1. Visit the HP scanner support Web site at www.hp.com/support. 2. Select your country/region, and then select your language. 3. Enter the scanner model number, and then press Enter. Clean the automatic document feeder The automatic document feeder (ADF) requires periodic maintenance depending on the amount of use and the type of paper that is fed through it. Clean the ADF under the following conditions: • The ADF rollers are visibly dirty. • The ADF has trouble feeding documents. • Vertical streaks appear in images scanned by the ADF. • After scanning a document that is dusty, dirty, or has pencil writing on it through the ADF. • The environment is dusty. 22 Care and maintenance