HP LaserJet 3050 User Manual

							If installation fails, reinstall the all-in-one software. If this fails, see the installation notes or late-
breaking readme files on the CD or the flyer that came in the box, or go to the appropriate
support Web site for help or more information (see 
HP Customer Care ).
Installing Macintosh printing system software for networks
To install printer drivers for Mac  OS X V10.3 and Mac OS X V10.4
1. Connect the network cable between the HP LaserJet 3052/3055/3390/3392 all-in-one and a
network port.
2. Insert the CD into the CD-ROM drive, and  then double-click the CD icon on the desktop.
3. Double-click the  Installer icon in the HP LaserJet Installer folder.
4. Follow the HP all-in-one setup assistant instructions on the computer screen.
NOTE The setup assistant should prompt you to restart the computer and to provide
the IP address of the all-in-one to complete the network installation.
To remove software from Macintosh operating systems
To remove the printing software from your Macintosh computer, open the  Finder, navigate to
Applications/HP LaserJet aio/HP Uninstaller , and then run the uninstaller program.
ENWW Software for Macintosh 23
 
						

							24 Chapter 2   SoftwareENWW
 
						

							3 Media specifications
●General guidelines
●
Choosing paper and other media
●
Guidelines for using media
●
Supported media weights and sizes
●
Printing and storage environment
ENWW 25
 
						

							General guidelines
Some media might meet all of the guidelines in this manual and still not produce satisfactory results.
This problem might be the result of improper handling, unacceptable temperature and humidit\
y
levels, or other variables over which Hewlett-Packard has no control.
Before purchasing large quantities of print media, always test a sample and make sure that the print
media meets the requirements specified in  this user guide and in the HP LaserJet Printer Family
Print Media Guide , which you can view on the Web at 
www.hp.com/support/ljpaperguide . For
ordering information, see 
Accessories and ordering information .
CAUTION Using media that does not meet HP  specifications can cause problems for the all-
in-one, requiring repair. This repair is not covered by the Hewlett-Packard warranty or service
agreements.
The all-in-one accepts a variety of media, such as cut-sheet paper (including up to 100% recycled-
fiber-content paper), envelopes, labels, transparencies, LaserJet glossy paper, HP LaserJet Tough
paper, and custom-size paper. Properties such as weight, composition, grain, and moisture content
are important factors that affect performance and output quality. 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 all-in-one, requiring repair
Choosing paper and other media
The HP LaserJet all-in-one produces documents that have 
excellent print quality. You can print on a
variety of media, such as paper (including up to 100% recycled fiber content paper), envelopes,
labels, transparencies, and custom-size media.
Properties such as weight, grain, and moisture content are important factors that affect performance
and quality. To achieve the best possible print quality, only use high-quality media that is designed
for laser printers. See 
Guidelines for using media  for detailed paper and media specifications.
NOTE Always test a sample of the media before you purchase large quantities. Your media
supplier should understand the requirements specified in the  HP LaserJet Printer Family Print
Media Guide  (HP part number 5963-7863). See 
Guidelines for using media for more
information.
HP media
HP recommends that you use HP LaserJet media in the all-in-one.
26 Chapter 3   Media specifications ENWW
 
						

							Media to avoid
The all-in-one can handle many types of media. Using media that is outside the specifications
degrades print quality and increases the chance of jams occurring.
●Do not use media that is too rough.
● Do not use media that contains cutouts or perforations other than standard 3-hole punched
paper.
● Do not use multipart forms.
● Do not use paper that contains a watermark if you are printing solid patterns.
Media that can damage the all-in-one
In rare circumstances media can damage the all-in-one.  Avoid the following types of media to
prevent possible damage:
● Do not use media with staples attached.
● Do not use transparencies designed for inkjet printers or other low-temperature printers. Use
only transparencies that are specified for use with HP LaserJet printers\
.
● Do not use photo paper intended for inkjet printers.
● Do not use paper that is embossed or coated and is not designed for the temperature of the
image-fuser. Select media that can tolerate temperatures of 200°C (392°F) for 0.1 second.
HP manufactures a media that is designed for the all-in-one.
● Do not use letterhead paper that was
 produced with low-temperature dyes or thermography.
Preprinted forms or letterhead must use inks that can tolerate temperatures of 200°C (392°F)
for 0.1 second.
● Do not use any media that produces emissions, or that melts, offsets, or discolors when
exposed to 200°C (392°F) for 0.1 second.
To order HP LaserJet printing supplies, go to 
www.hp.com/go/ljsupplies  in the U.S. or to www.hp.com/
ghp/buyonline.html/  worldwide.
ENWW Choosing paper and other media 27
 
						

							Guidelines for using media
The following sections provide guidelines and instructions for printing on transparencies, envelopes,
and other special media. Guidelines and specifications are included to help you se\
lect media that
optimizes print quality and avoid media that can cause jams or damage the all-in-one.
Paper
For best results, use conventional 80-g/m2 or 20 lb paper. Make sure that the paper is of good quality
and free of cuts, nicks, tears, spots, loose particles,  dust, wrinkles, voids, and curled or bent edges.
If you are unsure about what type of paper you are loading (such as bond or recycled), check the
label on the package of paper.
Some paper causes print quality problems, jamming, or damage to the all-in-one.
Table 3-1   Paper usage
SymptomProblem with paperSolution
Poor print quality or toner adhesion
Problems with feedingToo moist, too rough, too smooth, or
embossedTry another kind of paper that has a
smoothness rating of 100-250 Sheffield
and has 4-6 % moisture content.
Check the all-in-one and make sure
that the appropriate media type has
been selected.
Dropouts, jamming, or curlStored improperlyStore paper flat in its moistureproof
wrapping.
Increased gray background shadingMight be too heavyUse lighter paper.
Excessive curl
Problems with feedingToo moist, wrong grain direction, or
short-grain constructionUse long-grain paper.
Use the straight-through output path
(HP  LaserJet 3390/3392 all-in-one only).
Check the all-in-one and make sure
that the appropriate media type has
been selected.
Jamming or damage to all-in-oneCutouts or perforationsDo not use paper with cutouts or
perforations.
Problems with feeding Ragged edges Use good quality paper.
NOTEThe all-in-one uses heat and pressure to fuse toner to the paper. Make sure that any
colored paper or preprinted forms use inks that  are compatible with the fuser temperature of
200°C (392°) for 0.1 second.
Do not use letterhead that is printed with low-temperature inks, such as those used in some
types of thermography.
Do not use raised letterhead.
Do not use transparencies that are designed for inkjet printers or other low-temperature
printers. Use only transparencies that are specified for use with HP LaserJet printers.
28 Chapter 3   Media specifications ENWW
 
						

							Labels
For the HP LaserJet 3050/3052/3055 all-in-one, HP recommends that you print labels from the
priority input slot. For the HP LaserJet 3390/3392 all-in-one, HP recommends that you print labels
from the single-sheet priority input slot (tray 1)  and use the straight-through output path. See 
Loading
media into the input trays for more information.
CAUTION Do not feed a sheet of labels through the all-in-one more than once. The
adhesive degrades and might damage the all-in-one.
Label construction
When selecting labels, consider the quality of the following components:
● Adhesives
: The adhesive material should be stable at 200°C (392°F), the maximum fuser
temperature.
● Arrangement
: Only use labels with no exposed backing between them. Labels can peel off
sheets that have spaces between  the labels, causing serious jams.
● Curl
: Before printing, labels must lie flat with no more than 13 mm (0.5 inch) of curl in any
direction.
● Condition
: Do not use labels with wrinkles, bubbles, or other indications of separa\
tion.
Transparencies
Transparencies must be able to withstand 200°C (392°F), the all-in-one maximum fuser temperature.
CAUTION You can print transparencies from a 250-sheet tray (tray 1 on the HP LaserJet
3050/3052/3055 all-in-one; tray 2 or optional tray 3 on the HP LaserJet 3390/3392 all-in-one).
However, do not load more than 75 transparencies at one time into the tray.
ENWW Guidelines for using media 29
 
						

							Envelopes
For the HP LaserJet 3050/3052/3055 all-in-one, HP recommends that you print envelopes from the
priority input slot. For the HP LaserJet 3390/3392 all-in-one, HP recommends that you print
envelopes from the single-sheet priority input slot  (tray 1) and use the straight-through output path.
See 
Loading media into the input trays  for more information.
Envelope construction
Envelope construction is critical. Envelope fold lines can vary considerably, not only between
manufacturers, but also within a box from the same manufacturer. Successful printing on envelopes
depends upon the quality of the envelopes. When selecting envelopes, consider the following
components:
●
Weight : The weight of the envelope paper should not exceed 90 g/m
2 (24 lb), or jamming might
result.
● Construction
: Before printing, envelopes should lie flat with less than 6 mm (0.25 inch) of curl,
and should not contain air. Envelopes that trap  air can cause problems. Do not use envelopes
that contain clasps, snaps, tie strings, transparent windows, holes, perforations, cutouts,
synthetic materials, stamping, or embossing. Do not use envelopes with adhesives that require
pressure to seal them.
● Condition
: Make sure that the envelopes are not wrinkled, nicked, or otherwise damaged.
Make sure that the envelopes do not have any exposed adhesive.
Envelopes with double-side seams
An envelope with double-side-seam construction has vertical  seams at both ends of the envelope
rather than diagonal seams. This style might be more  likely to wrinkle. Make sure that the seam
extends all the way to the corner of the envelope as shown in the following illustration:
1
2
1Acceptable envelope construction
2Unacceptable envelope construction
30 Chapter 3   Media specifications ENWW
 
						

							Envelopes with adhesive strips or flaps
Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal must use
adhesives compatible with the heat and pressure in  the all-in-one: 200°C (392°F). The extra flaps
and strips might cause wrinkling, creasing, or jams.
Envelope storage
Proper storage of envelopes contributes to good print  quality. You should store envelopes flat. If air
is trapped in an envelope, creating an air  bubble, the envelope might wrinkle during printing.
Card stock and heavy media
You can print many types of card stock from  the input tray, including index cards and postcards.
Some card stock performs better than others because  its construction is better suited for feeding
through a laser printer. The HP LaserJet 3390/3392 all-in-one is designed to accommodate card
stock by opening the rear output door to use the straight-through output path.
For optimum performance, do not use paper heavier than 157 g/m
2 (42 lb). Paper that is too heavy
might cause misfeeds, stacking problems, jams, poor  toner fusing, poor print quality, or excessive
mechanical wear.
NOTE You might be able to print on heavier paper if you do not fill the input tray to capacity
and if you use paper with a smoothness rating of 100-180 Sheffield.
Card stock construction
● Smoothness : 135-157 g/m2 (36-42 lb) card stock should have a smoothness rating of
100-180 Sheffield. 60-135 g/m2 (16-36 lb) card stock should have a smoothness rating of
100-250 Sheffield.
● Construction
: Card stock should lie flat with less than 5 mm (0.2 inch) of curl.
● Condition
: Make sure that the card stock is not wrinkled, nicked, or otherwise damaged.
Card stock guidelines
Set margins at least 2 mm (0.08 inch) away from the edges.
ENWW Guidelines for using media 31
 
						

							Letterhead and preprinted forms
Letterhead is premium paper that often has a watermark, sometimes uses cotton fiber, and is
available in a wide range of colors and finishes with matching envelopes. Preprinted forms can be
made of a broad spectrum of paper types ranging from recycled to premium.
Many manufacturers now design these grades of paper with properties optimized for laser printing
and advertise the paper as laser compatible or laser guaranteed. Some of the rougher surface
finishes, such as cockle, laid, or linen, might require the special fuser modes that are available on
some printer models to achieve adequate toner adhesion.
NOTE Some page-to-page variation is normal when printing with laser printers. This
variation cannot be observed when printing on  plain paper. However, this variation is obvious
when printing on preprinted forms because the lines and boxes are already placed on the page.
To avoid problems when using preprinted forms, embossed paper, and letterhead, observe the
following guidelines:
● Avoid using low-temperature inks (the kind used with some types of thermography).
● Use preprinted forms and letterhead paper that have been printed by offset lithography or
engraving.
● Use forms that have been created with heat-resistant 
inks that will not melt, vaporize, or release
emissions when heated to 200°C (392°F) for 0.1 second. Typically, oxidation-set or oil-based
inks meet this requirement.
● When the form is preprinted, be careful not to  change the moisture content of the paper, and do
not use materials that change the papers electrical  or handling properties. Seal the forms in
moisture-proof wrap to prevent moisture changes during storage.
● Avoid processing preprinted forms that have a finish or coating.
● Avoid using heavily embossed or raised-letterhead papers.
● Avoid papers that have heavily textured surfaces.
● Avoid using offset powders or other materials that prevent printed forms from sticking together.
32 Chapter 3   Media specifications ENWW