Specifications

Image Quality
Copyright © 2009 BERTL Inc. September 25, 2009
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Page 22
August 2009
RISO ComColor 9050
www.BERTL.com
sheet registration was ~0.3 mm vertically and ~0.5 mm
horizontally.
COLOR REGISTRATION
Many elements of BERTL’s DTP are designed to address the
evaluation of color registration. Grids composed of colored
lines are used to evaluate color trapping of intersecting lines.
A series of negative and positive multicolored elements are
used to evaluate color dot placement and minute color
transitions.
Test Result – BERTL evaluators noted trapping anomalies
where red lines intersect blue lines.
SOLID FILL
Pages 5, 10, 25 and 31 of the BERTL DTP were specifically
designed to test a device’s ability to produce anomaly-free
edge-to-edge prints with solid fill, a demanding task for most
printers to produce on a consistent basis. The ability to
produce consistent solid fill becomes especially crucial in the
production environment where common jobs entail the printing
of complex documents (such as BERTL’s DTP) and long runs.
Test Result – The RISO ComColor® 9050 printed entire
pages of solid fill with no observable anomalies. The edge-
to-edge solid fill colors were opaque and consistently solid.
IMAGE PERMANENCE/TONER CRACKING
The test file printed by the RISO ComColor® 9050 was used
specifically by BERTL for evaluating spot colors and solids.
The best test for toner cracking is with a densely covered
sheet. The most creative marketing materials that require
folding utilize heavy coverage. These particular sheets were
folded and scored in both directions and there was no more
or less cracking on either fold – inside or outside. Whenever
possible, they were printed on coated 256 gsm media.
Test Result – As with most prints produced by ink-based
imaging technology, so no cracking was observed in the
hard-creasing test. The ink used by the RISO ComColor is
saturated into the paper that no cracking is visible. BERTL
analyst also noted that when the surface of the paper was
scratched with a metal object such as a key, no flaking
occurred.
The ComColor 9050’s print heads are designed to last up to
6 million impressions.
WHAT WE LIKED
• The RISO ComColor® 9050 produced prints with
consistently good overall image quality. Prints
displayed a durable matted finish, even on plain
paper.
• BERTL Analysts were very satisfied with the color
registration.
• This device has the ability to auto recognize color
which is a new function not previously supported on
the HC model. Monochrome pages will now be printed
in K and not in CMYK. Customers who are in a cost
per copy environment will save money as the click will
now be charged as a monochrome click and not a
color click.
• The RISO ComColor 9050 is not designed to generate
glossy fished documents.
• The Print head The ComColor 9050’s print heads are
designed to last up to 6 million impressions.
•
This device is intended for applications where the
output is disposable and used for a short period of
time. This device is not intended for users looking for
glossy finished documents.
WHAT WE WOULD LIKE TO SEE
• BERTL was satisfied with the image quality produced
by the RISO ComColor 9050’s.