Scanned images are not straight, Scanned image is fuzzy, Optimize scanning and task speeds – HP Scanjet Professional 1000 Mobile Scanner User Manual
Page 18: The scan is completely black or completely white, Vertical black stripes appear on the scanned image, Scan files are too large, Vertical black strips appear on the scanned image
HP Scanjet 1000 Scanner
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Scanned images are not straight
Verify that the document is fed straight into the paper feed slot.
Scanned image is fuzzy
y
Verify that the original document is not fuzzy.
y
Clean the roller and glass strips inside the scanner.
See also
Clean the rollers and the scanner glass
Optimize scanning and task speeds
Several settings influence the total time for a scanning job. When you want to optimize
scanning performance, consider the following information.
y
To optimize performance, make sure your computer meets the recommended
system requirements. To view minimum and recommended system requirements,
, select your country/region, search on your scanner model, and
then search on datasheet.
y
If you are scanning to editable text, the optical character recognition (OCR) software
requires more processing time than for non-OCR scans, which is normal. Wait for
the item to scan.
NOTE: For the best OCR results, scanner compression should be set to
the minimum compression level or disabled.
y
Scanning at a higher resolution than necessary increases scanning time and
creates a larger file with no additional benefit. If you are scanning at a high
resolution, set the resolution to a lower level to increase scanning speed.
See also
The scan is completely black or completely white
The item might not be placed correctly in the document feeder. Make sure that the item
you are trying to scan is placed face up.
Vertical black stripes appear on the scanned image
There is dirt on the scanner glass. Clean the scanner glass.
See also
Clean the roller and scanner glass
Scan files are too large
If the saved scan files are very large, 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.