Xante PlateMaker 3, Руководство пользователя

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_____________________________________ Troubleshooting 11-9
• Make sure the network is available.
• Reduce the number of items on the network to determine
the problem’s source.
• Make sure that you are using a crossover or UTP test cable
if you are using twisted pair cable to direct connect a
printer and a Ethernet configured host without a hub.
• 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.
• Adjust the printer’s gamma setting to change the midrange
grayscale values of the image. See “Halftone Calibration
Technology (Gamma)” in chapter 6.
• 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.