- Hewlett-Packard LaserJet All-in-One Evaluator's Guide

Evaluating laser all-in-one products 13
Efficient scanning
The 50-sheet ADF processes input at up to 19 images per minute (ipm) letter (18 ipm A4). The letter/A4-
size, 24 bit, flatbed scanner precisely scans single sheets and material such as bound documents, books,
and placards.
Easily handles complex jobs
To handle your workteam’s volume demands, the HP LaserJet 3390 AiO comes standard with 64 MB RAM
and the HP LaserJet 3392 AiO comes standard with 128 MB RAM. Add memory to either model up to a
total of 192 MB, and both models include 4 MB fax memory for storing up to 250 electronic pages.
Evaluation
Creating samples
First, develop a group of sample documents that represent what the end-user typically prints. This is the best
method for determining if a product is suited to your environment.
When evaluating performance, your print samples should include multiple documents and file types, each
created in the applications that will be used by the end-user. The samples should have different elements
(text, graphics, and photographic images) and should vary in complexity and page length. Some suggested
content includes simple text documents, mixed text and graphics, and complex graphics containing
photographic images.
CAUTION! Using only one application or file can skew test results. Use several types of files and
applications to present a broad and realistic performance picture.
Different manufacturers provide different print quality modes. Try to compare similar modes to achieve a
fair comparison.
To evaluate the print quality and speed of text documents, such as those created in Microsoft Word and
Excel, you should print them in different print modes. Documents such as newsletters intended for circulation
or image files, where photo quality is desired, are preferably printed in the best mode.
Simple—text only
Mixed—from complex text
to a mixture of text and
medium-complexity graphics
Comple
x
—ima
g
es and
advanced graphics (using
overlays or fill patterns)