HP N9120 HP Scanjet N9120 User Guide - Page 37
Scanned images are not straight, Scanned images contain streaks or scratches
UPC - 883585711567
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When scanning from the scanner glass, the item might not be placed correctly on the scanner glass. Make sure that the item you are trying to scan is placed face down on the glass and the lid is closed. See also "Load original documents" on page 5 Scanned images are not straight When scanning with the automatic document feeder, make sure that the paper guides touch the edges of the original. Make sure that all documents are of the same size. When scanning from the scanner glass, the item might have shifted when you closed the lid. Straighten the original on the scanner glass, and then scan again. Scanned images contain streaks or scratches When scanning with the automatic document feeder (ADF), follow the steps below. After each step, try another scan to see if the streaks or scratches are still apparent. If so, try the next step. 1. Check that the originals are clean and unwrinkled. 2. Clean the ADF or the scanner glass. 3. Replace the separation pad and the feed roller. See also • "Clean the automatic document feeder" on page 22 • "Clean the scanner glass" on page 25 • "Replace the feed roller and separation pad" on page 27 Vertical white stripes appear on the printed page The destination printer might be out of toner or ink. Scan a different original to the same printer to see if the issue lies with the printer. If the second original has the same problem, clean the automatic document feeder or the scanner glass. See also • "Clean the automatic document feeder" on page 22 • "Clean the scanner glass" on page 25 Scan files are too large If the saved scans have very large file sizes, try the following: • Verify the scan resolution setting: ◦ 200 dpi is sufficient for storing documents as images. ◦ For most fonts, 300 dpi is sufficient for using optical character recognition (OCR) to create editable text. ◦ For Asian fonts and small fonts, 400 dpi is the recommended resolution. Scanner operation problems 35