HP 3390 HP LaserJet 3050/3052/3055/3390/3392 All-in-One User Guide - Page 371
Scan-quality problems, Preventing problems - laserjet ink
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Scan-quality problems Preventing problems The following are a few simple steps you can take to improve copy and scan quality. ● Use the flatbed scanner, rather than the automatic document feeder (ADF) input tray, to scan. ● Use high-quality originals. ● Load the media correctly. If the media is loaded incorrectly, it might skew, which causes unclear images. See Loading media into the input trays for instructions. ● Adjust the software settings according to how you plan to use the scanned page. See Scanner resolution and color for more information. ● If your all-in-one frequently feeds more than one page at a time, the separation pad might need to be replaced. Contact HP Customer Care. See HP Customer Care or the flyer that came in the all-in-one box. ● Use or make a carrier sheet to protect your originals. Solving scan-quality problems Problem Blank pages Too light or dark Unwanted lines Black dots or streaks Unclear text Cause Solution The original might have been loaded upside down. In the automatic document feeder (ADF), put the top end of the stack of originals into the ADF input tray, with the media stack face-up and the first page to be scanned on top of the stack. On the flatbed scanner, place the original document face-down with the upper-left corner of the document at the lower-right corner of the glass. The resolution and color levels may be set incorrectly. Verify that you have the correct resolution and color settings. See Scanner resolution and color. Ink, glue, correction fluid, or an unwanted substance might be on the glass. The ADF glass might be dirty. Ink, glue, correction fluid, or an unwanted substance might be on the glass. Clean the flatbed scanner surface. See To clean the scanner glass (HP LaserJet 3052/3055/3390/3392 allin-one). Clean the ADF glass. See To clean the scanner glass (HP LaserJet 3052/3055/3390/3392 all-in-one). Clean the flatbed scanner surface. See To clean the scanner glass (HP LaserJet 3052/3055/3390/3392 allin-one). The resolution and color levels may be set incorrectly. Verify that you have the correct resolution and color settings. See Scanner resolution and color. ENWW Scan problems 353