Xante Colour ScreenWriter, User Manual

Page: 355 / 446

_____________________________________ Troubleshooting 11-17
• Do not use a transceiver that allows devices to daisy chain
on a twisted pair network.
When I print a scanned image, it is so dark that most of the detail is lost.
• Rescan the image with a higher resolution. Generally,
black and white images should be scanned at a resolution
of two times the line screen desired on the printed output.
Multiply this number by the ratio of the printed output size
to the original image size.
SR = Print Image LPI x 2 x Image Size Ratio
SR = the Scan resolution
Image Size Ratio = printed image size/original image size
For example, for a line screen of 95, set the scanner
resolution to 190 dpi (95 x 2). To print the same image at
75% of its original image size, set scanner resolution to
142 dpi (95 x 2 x .75).
Scanning the image at a lower than optimum resolution
results in less detail. Scanning at a higher resolution
increases file size and processing time, and it may only
slightly increase the amount of detail.
Color Issues
This section provides tips for resolving printer output color quality
problems.
Colors on my output are out of registration.
• Adjust the registration. See “Color
Registration” in chapter 8.
• The OPC belt cartridge may not be seated
properly. Reinstall it. See “Removing or
Installing the OPC Belt Cartridge” in
chapter 2.
• Make sure the correct profile is selected
when you print using profiles.