Microtek ScanMaker IIG User Manual page 211

Appendix B: Troubleshooting...
7 The scanner makes loud noises when scanning.
Solution: Certain scanner models make different noises when scanning.
The noise results from the mechanical parts moving at various speeds,
depending on your configuration, so some systems have more noise while
others have less. The noise is greatest when the velocity is set to Fast or
Auto. To resolve this, set the velocity in the scanning software (in the More
Options tool in the Settings window) to Medium or Slow to reduce the
noise.
8 While scanning images, the scanner carriage (lamp) keeps going back and forth
or idles, resulting in very long scan times.
Solution: This is called backtracking. Microtek scanners have a feature that
allows for recovery from image defects that result from the carriage
scanning and stopping during the scan. The carriage usually goes back and
reads part of the image once, then goes back a second time to patch the
images together and create a smooth picture. On some machines, due to
low amount of memory or a large virtual memory size, the software forces
the scanner to stop and start too many times, causing backtracking (which
may happen on almost every scan line).
To resolve this, you can:
• Increase RAM in the computer by purchasing more memory.
• Reduce or turn off virtual memory in the Windows 386 Enhanced
module inside the Main group.
9 Your scanned images do not have the same color as the original.
Solution: Generally, scanners, monitors, and printers all see and output
color differently. In order to come close to the original colors, you need to
calibrate all three devices. Microtek's DCR color correction system ensures
that your scanner captures colors accurately, but to have these colors output
correctly to a monitor or printer, you need a color management system
such as Kodak's Color Management Software, or AGFA's Color Calibra-
tion System. These third-party color management systems ensure color
integrity throughout the color production process from input to output.
Usually, all scanners scan a little darker or lighter than the original (for
instance, a scanner may scan red as magenta). This is not a fault of the
scanner but is a situation inherent to calibration of the equipment.
B-4 Microtek User's Guide for Windows