HP color laserjet 2550 series Manuale Di Servizio

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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 required 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 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 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
Use only tray 1 to print on envelopes. 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.
Type of address
Top margin
Left margin
Return address
15 mm (0.6 inch)
15 mm (0.6 inch)
Delivery address
51 mm (2 inches)
89 mm (3.5 inches)
For the best print quality, position margins no closer than 15 mm (0.6 inch) from the
edges of the envelope.
Avoid printing over the area where the envelope seams meet.
Envelope storage
Proper storage of envelopes helps contribute to print quality. Envelopes should be stored
flat. If air is trapped in an envelope and creates an air bubble, then the envelope might
wrinkle during printing.
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Envelope construction
20
Chapter 1 Product information
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