When evaluating more than one printer, it is crucial that you make a fair comparison between printers.
• Print the same files on all printers, in the same operating environment (constant temperature and
humidity), using the same computer, operating system, software application, print settings or modes, and
paper type to test all printers. Be sure to test comparable print drivers. Each of these components interacts
with the printing process and can affect print speed and quality.
• Test more than one software application to make sure software/driver conflicts are not affecting print
quality.
Evaluating print quality
Individuals may perceive print quality differently. HP strongly suggests that you have several people evaluate
your sample documents, in the same environment, with a consistent light source. Have them vote on the
samples that they like by listing them in order from the best to the worst. Allow each person to rate the
samples independently and then record the results. Also, have each person establish a “cut line” for
acceptable print quality for the end-user environment. This process is referred to as psychometric testing and
should be performed on all of the sample documents that you are using to evaluate text, graphics, and image
quality.
Look for the following characteristics:
• Text should be dark, solid black, without hollow spots.
• Edges of text and graphics should be crisp and smooth.
• There should be little or no toner scattered on the
non-printed areas of the paper.
• Solid color fills should be uniform and should not appear
glossy.
• Solid color fills should be uniform.
• There should be no banding across graphics or images.
• Images should be clear and sharp, without graininess.
• Images should look natural and realistic.
10 Print quality
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