Roland ColorCamm PC-12 User Manual page 85

- Is bidirectional communication on personal computers
supported?
Personal computers (IBM AT-compatible computer) support all
bidirectional communication that the printer uses.
- What restrictions apply when printing with the
unidirectional setting?
- You cannot use the printer driver to confirm errors on the
machine.
- A spool file is created for all print-output results, so when
multiple-page color printing is performed an enormous
amount of spool data (temporary printing-use file) is
created. When the hard disk has only a limited amount of
free space, the number of pages that can be continuously
printed is restricted.
- Can a printer switch unit be used?
Some printer switch units do not support bidirectional
communication, so such units must be used with the
unidirectional-interface setting.
- Can connections be made to more than one printer port?
On an IBM AT-compatible personal computer, you can use up to
three (LPT1 through LPT3) expansion-type printer ports
(parallel ports).
- Can a parallel connection and a USB connection be
used simultaneously?
Do not attempt simultaneous connection.
Printing Quality, Coloring, and Printing
Resolution
- Black areas are printed using four colors to obtain black.
To print black the [Image Settings] pages using four colors, go to
the [Roland PC-12] dialog box, and at the [Image Settings] page,
select the [Darker Black] check box or adjust [Brightness] and
[Contrast].
When you want to print with black only, clear the selection for
[Darker Black] then at the [Image Settings] page, click [Restore
Defaults].
To print the entire page in monochrome, go to the [Print
Settings] page and set [Document Type] to [Grayscale].
- Black is printed using black ink, but gray areas are
printed using four colors.
When you perform color printing, grayscale colors (grays) are
printed using four colors.
When you want to print them using only black ink, go to the
[Print Settings] page and set [Document Type] to [Grayscale].
- When full-color printing is performed on colored media,
colors are not reproduced correctly.
Because color printing uses inks that are designed for correct
color reproduction on white media, colors cannot be reproduced
correctly when colored media is used.
- Colors are different when the same data is printed again.
Are the any differences in media or print mode? Even when the
data is the same, differences in the media type, print mode, or
operating environment can produce slight variations in coloring.
The Ink-ribbon Cartridges
- Can printing be performed on any kind of media when
producing a glossy finish with full-color printing?
Use wax-use ink-ribbon cartridges and special cutting media
(synthetic paper) for wax inks.
Part 7 Troubleshooting
83