HP color laserjet 2550 series Manuale Di Servizio
This printer accepts a variety of media, such as cut-sheet paper (including up to 100%
recycled-fiber-content paper), envelopes, labels, transparencies, glossy paper, HP LaserJet
Tough paper, and custom-size paper. Properties such as weight, composition, grain, and
moisture content are important factors affecting printer performance and output quality. Print
media that does not meet the guidelines outlined in this manual can cause the following
problems:
recycled-fiber-content paper), envelopes, labels, transparencies, glossy paper, HP LaserJet
Tough paper, and custom-size paper. Properties such as weight, composition, grain, and
moisture content are important factors affecting printer performance and output quality. Print
media that does not meet the guidelines outlined in this manual can cause the following
problems:
●
Poor print quality
●
Increased jams
●
Premature wear on the printer, requiring repair
Paper and print media
Category
Specifications
Acid content
5.5 pH to 8.0 pH
Caliper
0.094 to 0.18 mm (3.0 to 7.0 mils)
Curl in ream
Flat within 5 mm (0.02 inch)
Cut-edge conditions
Cut with sharp blades with no visible fray
Fusing compatibility
Must not scorch, melt, offset, or release
hazardous emissions when heated to 210°C
(410°F) for 0.1 second
hazardous emissions when heated to 210°C
(410°F) for 0.1 second
Grain
Long Grain
Moisture content
4% to 6% by weight
Smoothness
100 to 250 Sheffield
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
Printer Family Print Media Guide. To download the guide in PDF format, go to
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.
and not too dry or too humid. Remember that paper is hygroscopic; it absorbs and loses
moisture rapidly.
Heat works with humidity to damage paper. 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.
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.
Paper storage environmental conditions directly affect the feed operation and print quality.
ENWW
Media specifications
19