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

Copier Optical Density

Copy Resolution - (Minimum line pair reproduced per millimeter [lp/mm])

Printer Resolution - (Horizontal/vertical point lines produced)

Copier Halftone Reproduction - (Moiré effect noted in auto mode expressed as line screen/halftone)

Minimum Copier Halftone Reproduced - (Before white)

Maximum Copier Halftone Reproduced - (Before black)

Printer Halftone Reproduction -

(Using an original with halftones ranging from 10% to 100% coverage in 10% gradations)

Positive/Negative Line Reproduction - (Discernable differences between line widths when printed in widths ranging from 1 - 6 pts.)

Positive/ Negative Dot Reproduction - (Percent of correctly printed 1 and 2 pixel positive/negative dots)

Black Output

1.374

6lp/mm

3 pt.

85/80, 50, 30, 20, 10%

85 line screen/10%

85 line screen/95%

Halftone gradations were even.

There were no discernable differences between the horizontal and vertical widths of the negative and positive lines.

1 Pixel

2 Pixel

 

 

Positive Negative Positive Negative

100% 0% 100% 50%

Color Output

1.418*

4 lp/mm

C

Y

M

K

4 pt.

4 pt.

4 pt.

4 pt.

 

 

 

 

150/30, 20% 133/50, 20% 120/30, 20%

150 line screen/5%

85 line screen/95%

Halftone gradations were even.

Positive

Negative

1, 2, 3 pt.

1, 2, 3 pt.

 

 

 

 

 

 

1

Pixel

2

Pixel

 

 

 

 

 

 

Positive

 

Negative

Positive

 

Negative

100%

 

100%

100%

 

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.