HP LaserJet Enterprise MFP M637 User Guide - Page 262
Check the send-fax resolution settings, Check the image-adjustment settings, application
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3. Clean the scanner glass (callout 1) and the document feeder strips (callout 2, callout 3) with a soft cloth or sponge that has been moistened with nonabrasive glass cleaner. CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl alcohol, or carbon 3 tetrachloride on any part of the printer; these can damage the printer. Do not place liquids directly on the glass or platen. They might seep and damage 2 the printer. NOTE: If you are having trouble with streaks on copies when you are using the document feeder, 1 be sure to clean the small strips of glass on the left side of the scanner (callout 2, callout 3). View a video of cleaning the document feeder glass and flatbed glass. 4. Dry the glass and white plastic parts with a chamois or a cellulose sponge to prevent spotting. 5. Connect the power cable to an outlet, and then press the power button to turn the printer on. Check the send-fax resolution settings Adjust the resolution of outgoing faxes as needed. A higher resolution setting increases the fax size and send time. 1. From the Home screen on the printer control panel, navigate to the Fax application, and then select the Fax icon. 2. Select Options. 3. In the Options pane, scroll to and select Resolution. 4. Select one of the predefined options, and then select Send to send the fax. Check the image-adjustment settings Adjust the settings in the Fax menu to optimize image quality. ● Sharpness: Clarify or soften the image. For example, increasing the sharpness could make text appear crisper, but decreasing it could make photos appear smoother. ● Darkness: Increase or decrease the amount of white and black used in colors in scanned images. ● Contrast: Increase or decrease the difference between the lightest and the darkest color on the page. 254 Chapter 10 Solve problems ENWW
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