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IATSD Critical Test Report – Panasonic WORKio DP-C401 Page 3
IMAGE QUALITY
Image-quality samples were produced using a variety of applications. Image quality was measured from images
produced using the default automatic settings.
Panasonic WORKiO DP-C401
Black Output Color Output
Copier Optical Density
1.374 1.418*
Copy Resolution - (Minimum line
pair reproduced per millimeter
[lp/mm])
6 lp/mm 4 lp/mm
C Y M K
Printer Resolution -
(Horizontal/vertical point lines
produced)
3 pt.
4 pt. 4 pt. 4 pt. 4 pt.
Copier Halftone Reproduction -
(Moiré effect noted in auto mode
expressed as line
screen/halftone)
85/80, 50, 30, 20, 10%
150/30, 20%
133/50, 20%
120/30, 20%
Minimum Copier Halftone
Reproduced - (Before white)
85 line screen/10% 150 line screen/5%
Maximum Copier Halftone
Reproduced - (Before black)
85 line screen/95% 85 line screen/95%
Printer Halftone Reproduction -
(Using an original with halftones
ranging from 10% to 100%
coverage in 10% gradations)
Halftone gradations were even. Halftone gradations were even.
Positive/Negative Line
Reproduction - (Discernable
differences between line widths
when printed in widths ranging
from 1 - 6 pts.)
There were no discernable differences
between the horizontal and vertical widths
of the negative and positive lines.
Positive
1, 2, 3 pt.
Negative
1, 2, 3 pt.
1 Pixel 2 Pixel 1 Pixel 2 Pixel
Positive/ Negative Dot
Reproduction - (Percent of
correctly printed 1 and 2 pixel
positive/negative dots)
Positive
100%
Negative
0%
Positive
100%
Negative
50%
Positive
100%
Negative
100%
Positive
100%
Negative
50%
*Process black – Image Density
Image-Quality Discussion
In testing, the Panasonic WORKiO DP-C401 produced above-average black-and-white image quality. The device
also produced color image quality that was somewhat better than that produced by other workgroup color devices
tested to date by IATSD. Note that because there is no fuser oil, prints are less shiny, and are more matte in finish
when compared to prints produced by some other color laser-imaging devices.
2003 • INDUSTRY ANALYSTS, INC.