Riso HC5500 Series Reference Manual page 21

Does the quality of the printout
differ from other printers?
Whereas colours displayed in monitors and the like
are expressed in terms of the primary colours of light
- red, green, and blue (RGB), for ink printing the 3
primary colours are cyan, magenta, and yellow
(CMY). In general, CMY cannot form as many colours
as RGB, and as a consequence it is not possible to
print the same colours seen at the monitor. There-
fore, it is necessary to convert RGB into CMY while
trying to reproduce colours as faithfully and naturally
as possible. This conversion mechanism is called
"colour management." Rules used in the conversion
vary from manufacturer to manufacturer; we, at RISO,
use a proprietary conversion table (colour profile).
HC5500's colour management is performed using our
proprietary colour profile ComColor
which focuses on the reproduction of colour images
based on our fundamental concept of fast, inexpen-
sive, and instant printing.
TM
ComColor Standard Features
- Colour tones are adjusted (colour profile
changes) according to the paper.
- Colour tones are adjusted according to the
original image mode (predominantly text or
predominantly photo).
- Colour photographs are adjusted to achieve
beautiful results with a limited range of colours.
Due to this feature, the item [Paper size and type]
adjusted at the printer driver should correspond to the
actual size and type when printing with the HC5500.
If the settings do not match, it is not possible to
achieve beautiful results.
In addition, the ink used is also important for the
reproduction of colours.
The FORCEJET Link mark of the HC5500 indicates
the usage of appropriate ink and correct colour
management.
Operating on the printer's
panel
The usual printing procedure consists of clicking on
[Print] [OK] at the Computer's printer driver screen.
With the HC5500, it is possible to do it that way too.
However, in some situations such as when you want
to print a large amount of data or manipulate data
that have been already finished (for example, to print
someone else's data), it is possible to give instruc-
TM Standard,
tions/do adjustments from the operation panel by
setting the print mode to [OFF].
[More Useful Functions], page 32 of this manual
Select [Job Clear] from the
menu if you want to [Clear].
To interrupt or cancel the printing, execute [Menu 7
Job Clear]. Pressing the cancel key does not clear an
ongoing printing job.
After selecting [Job Clear] in Menu 7, make sure to
press the Print/Pause key and restore the print mode
to [ON]. If left in [OFF], the printer does not respond
to print commands sent from the computer.
Be careful with curled paper
A strongly curled paper cannot pass through the
printer.
If the paper is curled, the amount of curling should be
less than 3mm (0.12").
Make sure to use "fresh-pack" (brand-new) paper in
the standard paper feed tray, and wrap it with paper
for storage. When left for a long time, the paper
absorbs humidity from the air and tends to get curled.
If you frequently experience paper jam even when the
paper is curled by less than 3mm (0.12"), try to put
the curled surface facing down.
Curl should
be less than
3mm (0.12").
Use narrow margins
The HC5500 uses 5mm ( 5
margins by default due to its high-speed paper feed
mechanism. These margins can be reduced to 1mm
(0.04") by selecting [Maximum] in [Menu 4.10 Image
Area].
/ ") vertical and horizontal
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