Stripes Or Moiré Patterns Which Are Not In The Original Document Appear; In The Scanned Data; After Scanning, Image Quality Drops; After Scanning, Image Data Is Patchy - GRAPHTEC CS500 User Manual

6.12 Stripes or moiré patterns which are not in the original
document appear in the scanned data
Cause
The scanned document contains filled or
shaded areas.

6.13 After scanning, image quality drops

Cause
The scanner's image scanning quality has
deteriorated.
Is the scanner properly grounded?

6.14 After scanning, image data is patchy

Cause
The scanner's image scanning quality has
deteriorated.
You are using a carrier sheet with a color
document.
CS500/IS200
6. TROUBLESHOOTING PROCEDURES
Remedy
Depending on the resolution selected, data that
is comprised of filled or shaded areas may be
scanned in as stripes or moiré patterns. This is
not due to a scanner malfunction.
Note, however, that the vividness of the stripe
and moiré patterns can be lessened by changing
the resolution, and that the driver software
included with your scanner (Scanning Master
21+) will help you to reduce the vividness of
the moiré patterns by using the Moiré Pattern
Removal Radius, the Moiré Pattern Removal
Strength and the Moiré Reduction settings in
the "Scan window/Adjustments" tab in cases
where you are scanning 24-bit colors.
Remedy
Run the "Scanner Adjustment Program"
(see Section 5.6, "Calibration"), and perform
calibration.
Make sure that the scanner is grounded.
Remedy
Run the "Scanner Adjustment Program"
(see Section 5.6, "Calibration"), and perform
calibration.
Don't use the carrier sheet.
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