Printing and storage environment, Envelopes, Printing and storage environment envelopes – HP 2605dtn User Manual

Page 24

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For complete print-media specifications for all HP LaserJet printers, see the HP LaserJet Printer
Family Print Media Guide
. To download the guide in PDF format, go to

http://www.hp.com/support/

ljpaperguide

.

Printing and storage environment

Ideally, the printing and media-storage environment should be at or near room temperature, and not
too dry or too humid. Remember that paper is hygroscopic; it absorbs and loses moisture rapidly.

Heat causes the moisture in paper to evaporate, while cold causes it to condense on the sheets.
Heating systems and air conditioners remove most of the humidity from a room. As paper is opened
and used, it loses moisture, causing streaks and smudging. Humid weather or water coolers can
cause the humidity to increase in a room. As paper is opened and used it absorbs any excess
moisture, causing light print and dropouts. Also, as paper loses and gains moisture it can distort. This
issue can cause jams.

As a result, paper storage and handling are as important as the paper-making process itself. Paper
storage environmental conditions directly affect the feed operation and print quality.

Care should be taken not to purchase more paper than can be easily used in a short time (about
three months). Paper stored for long periods can experience heat and moisture extremes, which can
cause damage. Planning is important to prevent damage to a large supply of paper.

Unopened paper in sealed reams can remain stable for several months before use. Opened
packages of paper have more potential for environmental damage, especially if they are not wrapped
with a moisture-proof barrier.

The media-storage environment should be properly maintained to ensure optimum printer
performance. The recommended condition is 20° to 24°C (68° to 75°F), with a relative humidity of
45% to 55%. The following guidelines should be helpful when evaluating the paper's storage
environment:

Print media should be stored at or near room temperature.

The air should not be too dry or too humid (to moderate the hygroscopic properties of paper).

The best way to store an opened ream of paper is to rewrap it tightly in its moisture-proof
wrapping. If the printer environment is subject to extremes, unwrap only the amount of paper to
be used during the day's operation to prevent unwanted moisture changes.

Avoid storing paper and print media near heating and air conditioning vents or near windows
and doors that are frequently open.

Envelopes

Envelopes can be printed from Tray 1 or Tray 2. Select the type of envelope that you are using from
the Print dialog box or the printer driver.

In your program, set the margins for the envelope. The following table gives typical address margins
for a commercial #10 or DL envelope.

12

Chapter 1 Printer basics

ENWW

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