HP OFFICEJET 4500 - Manual (Page 102)

Text or images on the back of a two-sided original appear in the scan
Two-sided originals can "bleed" text or images from the back side to the scan if the
originals are printed on media that is too thin or too transparent.
The scanned image is skewed (crooked)
The original might have been placed incorrectly. Be sure to use the media guides when
you place the original on the scanner glass. For more information, see Load an original
on the scanner glass.
The image quality is better when printed
The image that appears on the screen is not always an accurate representation of the
quality of the scan.
◦
Try adjusting your computer monitor settings to use more colors (or levels of gray).
On Windows computers, you typically make this adjustment by opening Display on
the Windows control panel.
◦ Try adjusting the resolution and color settings.
The scanned image shows blots, lines, vertical white stripes, or other defects
◦
If the scanner glass is dirty, the image produced does not have optimum clarity. See
Maintain the device for cleaning instructions.
◦ The defects might be on the original and not a result of the scanning process.
Graphics look different from the original
The graphics settings might not be suitable for the type of scan job that you are
performing. Try changing the graphics settings.
Take steps to improve the scan quality
◦
Use high-quality originals.
◦ Place the media correctly. If the media is placed incorrectly on the scanner glass, it
might skew, which causes unclear images. For more information, see Load an original
on the scanner glass.
◦ Adjust the software settings according to how you plan to use the scanned page.
◦ Use or make a carrier sheet to protect your originals.
◦ Clean the scanner glass. See Clean the scanner glass for more information.
Scan defects are apparent
• Blank pages
Make sure that the original document is placed correctly. Place the original document
face down on the flatbed scanner with the top-left corner of the document located in
the lower-right corner of the scanner glass.
• Too light or dark
◦
Try adjusting the settings. Be sure to use the correct resolution and color settings.
◦ The original image might be very light or dark or might be printed on colored paper.
• Unwanted lines
Ink, glue, correction fluid, or an unwanted substance might be on the scanner glass.
Try cleaning the scanner glass. See Maintain the device for more information.
Chapter 7
98 Solve a problem