Alps Electric MD-1300 - Manual (Page 159)

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True black cannot be obtained in either the Photo Realistic Paper mode or
the 600 dpi Photo Realistic Finishing mode.
In any printing mode involving Photo Realistic Finishing, three colors are
used for printing, i.e., cyan, magenta, and yellow. Black obtained by using
these colors is inferior to the black obtained using black ink. For stronger
black tones, we recommend that the four color ink cartridges be used to
provide full color printing at 600 dpi, then that Photo Realistic Finishing be
applied in Overlay mode.
When plain or other coarse-surfaced paper is printed in color, ink is miss-
ing from a number of points on the image.
When paper with a coarse surface is used for full color printing, ink will be
missing from certain points where it was difficult to deposit. To correct this,
you can attempt the following.
•
Set the Halftone setting in the Quality tab to Standard Dither for printing.
The image will be coarse, but the ink will transfer to the paper more reli-
ably.
•
If you have white ink, the image quality may be improved by providing a
white undercoat.
When colored paper is used for full color printing, the colors are not
reproduced correctly.
Color printing is based on the colors reproduced when ink is printed on
white paper, so correct colors cannot be reproduced on colored paper. MD
printers, however, can provide the following forms of printing even on col-
ored paper.
•
On light color paper, MD printers provide a white undercoat prior to color
printing. This allows colors to be reproduced in tones close to those ob-
tained by printing on whitepaper.
•
On dark color paper, impressive finishing may be obtained by using mono-
chrome printing with white ink.
Ink and Paper
How should I use white ink?
White ink can be used as follows:
•
As with metallic ink, white ink is effective for spot color printing on dark-
colored paper.
•
White ink can provide an undercoat for full color printing on light-colored
or coarse-surfaced paper. The white undercoat will improve image quality
and color reproduction.
When I use multicolor ink cartridges for color printing they quickly run out.
Multicolor ink cartridges are intended for printing small color areas on pre-
dominately monochrome documents or for use with metallic color ink car-
tridges. More ribbon is wasted using multicolor ink cartridges than a set of
single color ink cartridges.
For normal color printing, use a set of color ink cartridges (yellow, magenta,
cyan, and black).
Troubleshooting