HP (Hewlett-Packard) printer User Manual
hp LaserJet printer family
print media guide
Contents
Overview
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
How HP LaserJet printers work . . . . . . . . . . . . . . . . . . . . . . . . . .4
Alternate sources of information . . . . . . . . . . . . . . . . . . . . . . . . . . .4
General Information
Guidelines for purchasing and using print media . . . . . . . . . . . . . .5
Types of print media to avoid . . . . . . . . . . . . . . . . . . . . . . . . . .6
Testing small amounts of print media . . . . . . . . . . . . . . . . . . .7
Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Adhesive labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Overhead transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Conditioning print media . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Opening and loading paper . . . . . . . . . . . . . . . . . . . . . . . . . .21
Printing on both sides of the paper. . . . . . . . . . . . . . . . . . . . .21
Preparing laser-printed mailings . . . . . . . . . . . . . . . . . . . . . .22
Purchasing HP print media . . . . . . . . . . . . . . . . . . . . . . . . .24
Guidelines for shipping and storing print media . . . . . . . . . . . . . .32
Shipping media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Storing media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Environmental considerations . . . . . . . . . . . . . . . . . . . . . . .33
Troubleshooting
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Troubleshooting checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Basic troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Paper problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Frequent paper jams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Frequent multiple paper feeds . . . . . . . . . . . . . . . . . . . . . . . .39
Reducing post-image curl . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Envelope problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Frequent envelope jams . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Gray areas on envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Wrinkling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Technical specification tables
U.S. paper grades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Contents i
Common paper grades and basis weights . . . . . . . . . . . . . . .44
Weight equivalence table . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Print media specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
What the specifications mean. . . . . . . . . . . . . . . . . . . . . . . . .46
Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Envelopes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Adhesive labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Overhead tranparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Standard media sizes used in laser printers . . . . . . . . . . . . . . . .54
Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Card stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Comparisons of paper smoothness . . . . . . . . . . . . . . . . . . . . . . .56
Glossary
Index
ii Contents
Overview
Introduction
HP LaserJet printers quickly and quietly produce documents with
excellent print quality. A variety of print media, including paper,
envelopes, labels, and overhead transparencies can be used in your
HP LaserJet printer. However, to ensure consistent performa nce and
long-term reliability, the print media must be designed for use with
laser printers. There are many choices of high-quality print media
available to laser printer users.
This guide provides useful guidelines for selecting and using print
media that will give you the best performance with most HP LaserJet
printers. It also contains information to help troubleshoot HP LaserJet
printer problems that may be caused by poor-quality print media.
Note This document does not support HP LaserJet 2686A, HP LaserJet
Plus, HP LaserJet 500, or HP LaserJet 2000 printers. See the user
guide for each printer for informat ion about pri nt media specifica tions.
Note When HP LaserJet printers are discussed in this guide, the infor mation
pertains to both HP Monochrome LaserJet printers and HP Color
LaserJet printers unless otherwise noted.
Chapter – Overview 3
How HP LaserJet printers work
HP LaserJet printers use laser and e lectrophotographic technologies.
To print a page in a laser printer, the print media must b e picked from
the input tray one sheet at a time and transported through the paper
path. While passing through the paper path, a scanning laser beam
writes an electrostatic image onto a rotating photosensitive drum. As
this image passes the developing station, a dry, powdery toner is
attracted to the imaged areas. In an HP Color LaserJet printer, this
process is repeated for each of the four toner colors.
The developed image then advances to the tr ansfer station where the
drum contacts the paper or other print media and the toner image is
electrostatically transferred onto the paper. After transfer, the print
media passes through the fuser where heat is app lied and the toner
fuses (melts) onto the print media. The print media is then delivered
to the output bin, ready for use.
To summarize, to create the printed image the print media must be
transported through the printer, charged electrostatically, and heated .
This is why print media properties such as electrical resistivity,
caliper, finish, moisture content, and stiffness can affect the print
quality and media-handling performance of your HP LaserJet printer.
Alternate sources of information
The media manufacturer and vendor can provide you with information
about the suitability of print media for an HP LaserJet printer.
If you have tried the suggestions outlined in this document and in
your user guide and you still need assistance, call the dealer from
whom you purchased your printer. You can also obtain support
through the worldwide network of HP Sales and Service Offices. (See
the sales and service listings located in any HP LaserJet printer user
guide.)
Visit HP’s website at http://www.hp.com
HP printer and HP print media.
4 How HP LaserJet printers work
to find out more about your
General Information
Guidelines for purchasing and using print media
HP LaserJet printers are designed to be flexible in the types of print
media they can use. However, it is advisable to use good quality
media, and specifically, HP paper that is designed to work with your
HP LaserJet printers (see "Purchasing HP print media"). This section
is designed to help you select media that works best with your HP
LaserJet printer.
Note Properties of print media are subject to change. Hewlett-Packar d has
no control over such changes. The customer assumes all responsibility
for the quality and performance of media. Although testing media helps
to characterize its performance, long-term satisfaction requires
process quality control by the manufacturer and proper handling and
storage by the customer.
Chapter – General Information 5
Types of print media to avoid
The following characteristics can affect the performa nce of your HP
LaserJet printer unless the paper or o ther print media you are using is
specifically designed to work with your HP LaserJet printer.
l Print media that is very rough, highly textured, or he avily
embossed.
l Print media with multipart forms.
l Print media that offsets or discolors.
l Print media that is damaged, curled, wrinkled, or irregularly
shaped.
l Paper that is extremely shiny or glossy.
l Paper, labels, envelopes, media coatings, dyes, or inks that
produce undesirable emissions or melt when exposed to a fu sing
temperature of 205° C (401° F) for 0.1 second (0.2 second for
HP Color LaserJet printers).
l Overhead tranparency material that produces undesirable
emissions or melt when exposed to a fusing temperature of
205° C (401° F) for 0.1 second (0.4 second fo r HP Color LaserJet
printers).
l Envelopes that have an open flap with the adhesive exposed so
that closing the flap seals the envelope.
l Envelopes with clasps, snaps, tie strings, windows, or synthetic
materials. These materials can severely damage the printer.
l Envelopes that are not square, straight, or constructed correctly
(see "Envelope construction").
l Envelopes with a basis weight less than 60 g /m
than 105 g/m
l Envelopes with baggy construction or folds that are not sh arply
2
(28 lb).
creased.
2
(16 lb) or greater
6 Guidelines for purchasing and using print media
Testing small amounts of print media
If you are planning a large purchase of print media, first print a small
quantity in your printing environment. Subject the print media to the
temperature, humidity, and printing applications in which the print
media will be used. Hewlett-Packard recommends that you ask your
print media vendor for a guarantee that its print media will perform
satisfactorily in your HP LaserJet printer and that the vendor will
assume responsibility for the replacement of any print media that
does not print acceptably.
Note HP recommends testing print media before purchasing large
quantities.
Chapter – General Information 7
Paper
“Plain paper” is a misnomer. All papers are designed and
manufactured for a specific use. Papers designed for the
electrophotographic process used by laser prin ter and copy machines
are usually called laser, photocopy, or xerographic grade papers.
High quality laser and photocopy papers ar e usually made from 100%
chemical wood pulp and are characterized by a smooth surface,
controlled electrical properties, heat stability, and cleanliness. These
characteristics ensure good image transfer, fusing without excessive
curl, and reliable printer operation.
Use conventional white photocopy paper for most printing. The pap er
should be high quality and free of the following:
l cuts
l tears
l grease spots
l loose particles
l dust
l wrinkles voids
l curled or bent edges
Some print jobs require a paper with a more prestigious look or feel.
Bond papers generally have a watermark and often use cotton fiber.
These papers tend to have a rougher surface, and their properties
might not be controlled like those of photocopier papers. Your
HP LaserJet printer will print black satisfactorily on many of these
bond papers. Using this type of paper with an HP Color LaserJet
printer can degrade color print quality. However, paper manufacturers
are now making laser-grade bond papers, which have properties
optimized for laser printing.
Note Paper can meet the general specifications listed in "Print media
specifications" and still not print satisfactorily because of the printing
environment or other variables over which HP has no control.
This section contains the following two topics:
l "Reading a ream label"
l "Paper types"
8 Guidelines for purchasing and using print media
Reading a ream label
A ream label is placed on the outside of the paper wrapping. The
ream label usually indicates basis weight, size, number of sheets,
grain direction, and grade. T he pr int ing sur face of the p ape r migh t be
indicated by an arrow on the ream label, although some
manufacturers do not specify a print side. Paper should be loaded
into the printer so that the surface indicated by the arrow will be the
printing surface. The printing surface might be facing up or down in
the input tray, depending on the printer model and the paper-feeding
source.
Manufacturer name Paper size
Basis weight Paper type
Quantity
Chapter – General Information 9
Paper types
This section describes the following paper types:
l Recycled paper l Specialty or converted paper
l Archival paper l Preprinted forms and letterhead
l Colored paper l Embossed and debossed paper
l Coated paper
Recycled paper
Recycled paper is a combination of unused fibers and pre- and postconsumer waste paper. Printed waste paper is usually washed to
remove most of the inks and other contaminants. A recycled sheet of
paper might contain dark specks or appear gray or dir ty. Choose
recycled paper that meets the same specifications as standard paper
(see "Print media specifications") and that has an appearance
suitable for your needs. HP recommends that recycled paper contain
no more than 5% groundwood.
Archival paper
Paper used for archiving must meet the same specifications as
standard paper; however, the pH should be no less than 7.0. Some
archival demands are more stringent than others, requir i ng a sp ecif ic
degree of alkalinity and chemical stability. Toner is chemically stable
and should last as long as the paper does. Toner can be degraded by
petroleum-based solvents or p lasticizers, such as those found in vinyl
folders.
Avoid folding archival documents across printed areas or handling
archival documents roughly. Discuss archival requirements with your
paper supplier.
Colored paper
You can use colored paper in your HP LaserJet printer as long as
the paper meets the same specifications as standard paper
(see "Print media specifications").
The HP Color LaserJet printers are optimal when printin g on white
paper. You also can use an HP Color LaserJet printer to print on
colored paper that meets all the specifications listed in this guide.
However, colored paper can change the appearance of the printed
colors. This is because HP Color LaserJet printers create colors by
printing a pattern of dots, overlaying and varying their spacing to
produce various colors. When these colors are printed on colored
media, the shade or color of the media will vary the shades of your
printed colors. Because the printer cannot sense what color paper
10 Guidelines for purchasing and using print media
you are using, it cannot adjust the output color s for color ed paper . To
manually adjust the output colors, see the service manual for your
printer.
Coated paper
Clay or other pigment-coated papers must be specifically designed
for laser printers. The electrical prope rties must be contro lled and the
surface designed not to blister during fusing, and the coa ting must not
flake or shed particles that can contaminate the printer.
Some chemically coated papers such as carbonless pa per can cause
swelling of rollers, damage to the paper path, or buildup on the fuser,
and can produce undesirable emissions. These papers can result in
unsatisfactory performance and poor reliability, and their use is not
recommended.
Specialty or converted paper
Paper that undergoes converting processes before being used in
your laser printer must be properly designed and manufactured to
ensure acceptable performance. Converting processes include
preprinting, engraving, die-cutting, perforating, folding, gluing,
embossing, and debossing. These processes use many different
inks, materials, tools, and techniques and it is recommend that you
make sure your converter or supplier knows that the media will be
used in a laser printer. Ask for a guarantee of acceptable
performance.
Media that have perforations or cutouts can be printed successfully
on your HP LaserJet printer. However, these media must be properly
designed and manufactured to avoid feed o r contamination problems.
Chapter – General Information 11
Cutout: The area where material has been removed by punching or
die-cutting. Cutouts can interact with paper path sensors or can
result in contamination from toner if printing is too close to a cutout
location.
Perforations: A series of holes or slits made in media to provide a
controlled tear for separating one port ion of the sheet fro m another. It
is recommended that micro-perfs be used, as they provide better
strength and reduce nesting, debris, and dusting.
The following guidelines should be considered when working with a
knowledgeable vendor in developing media that will have perforations
or die-cuts:
l Punch cutouts and perforations from the side to be pr inted so that
edge trimmings will not scratch the photosensitive drum.
l Round all corners of a cutout to prevent snagging or, in the case
of labels, peeling.
l Ensure that die-cutting of labels does not penetrate t he liner
sheet.
l Ensure that cutouts are not made at a position where paper path
sensors are located.
l Do not print closer than 10 mm (0.394 in) to a cutout edge or
perforation to avoid toner contamination.
l All cuts should be clean (no burrs) with no edge rollover to
prevent nesting, poor feeding, or contaminat ion.
l Orient perforations in the direction of paper feeding to minimize
tenting or feeding problems from reduced stiffness.
l Do not run perforations closer than 2 mm (0.0788 in) from the
paper edge or 25 mm (0.985 in) from the leading edge, or
jamming and feeding problems can result.
12 Guidelines for purchasing and using print media
Preprinted forms and letterhead
To avoid multiple-feed and jamming problems when us ing preprinted
forms, embossed paper, and letterhead paper, observe the following
guidelines:
l Avoid using low-temperature inks (the kind used with some types
of thermography).
l Use forms and letterhead paper printed by offset lithography or
engraving.
l Print forms with heat-resistant inks that will not melt, vaporize, or
release undesirable emissions when heated to 205° C (401° F)
for 0.1 second (0.2 second for HP Color LaserJet printers).
Typically, oxidation-set or oil-based inks meet this requirement .
l When the form is preprinted, be careful not to change the
moisture content of the paper, and do not us e ma te ria ls th at
change the paper’s electrical or handling properties. Seal the
forms in moisture-proof wrap to prevent moistu re change s dur ing
storage.
l Avoid processing preprinted forms with a finish or coating.
l Avoid using heavily embossed or raised-letterhead papers.
l Avoid papers with heavily textured surfaces.
l Avoid using offset powders or other materials to prevent printed
forms from sticking together.
Embossed and debossed paper
Avoid heavily embossed or debossed papers because multiple sheet
feeding can occur from nesting. Do not print closer than 1 5 mm
(0.591 in) from the embossment to prevent poor print quality and
fusing (toner adhesion). The fuser can tend to iron flat the embossed
or debossed images.
Chapter – General Information 13
Envelopes
CAUTION HP Color LaserJet and HP Color LaserJet 5 printers do not support
envelopes. Printing envelopes can damage the printer. See the user
guide that came with your printer for detailed instructions about printing
envelopes.
You can print many sizes and styles of envelopes on most
HP LaserJet printers by using manual fe ed, a multipurpo se (MP) tray,
an optional envelope tray, or an optional envelope feed er. Whicheve r
input method you use, envelopes should meet all specifications
discussed in this document. Your envelope vendor should provide
you with a satisfactory envelope that complies with the specifications
listed in "Print media specifications". However, folding inconsistencies
or other process control problems can result in some envelopes
feeding well and others jamming. Purchase envelopes that have the
quality and consistency your printer requires.
Note Envelopes can meet the general specifications listed in "Print media
specifications" and still not print satisfactorily because of the printing
environment or other variables over which HP has no control.
CAUTION Envelopes containing windows, clasps, or snaps can cause severe
damage to the printer. See the printer user guide before using
envelopes in your HP LaserJet printer.
This section contains the following two topics:
l "Envelope construction"
l "Results of envelope testing"
14 Guidelines for purchasing and using print media
Envelope construction
Because of their construction, some envelopes will not feed through
the printer dependably. Observe the following guidelines when
purchasing and using envelopes:
l Make sure the envelope’s leading edge, which enters the printer
first, is straight, with a sharp, well-creased fold that has no more
than two thicknesses of paper. Envelopes that exceed 90 g/m
(24 lb) basis weight can cause jamming.
l Avoid using flimsy envelopes with thick or curved leading edges;
they will not feed reliably.
l Envelopes should lie flat and should not be wrinkled, nicked, or
otherwise damaged.
l Avoid envelopes with baggy construction; they might wrinkle
while going through the printer’s fuser assembly.
l Make sure that the adhesive labels used on envelopes will not
scorch, melt, offset, or release undesirable emissions when
heated to 205° C (401° F) for 0.1 second (0.2 second for HP
Color LaserJet printers).
l Avoid using envelopes with encapsulated adhesives that do not
require moistening, but rely instead on pressure to seal them.
l Do not use envelopes with clasps, snaps, tie strings, transparent
windows, holes, perforations, or cutouts.
l Do not use envelopes that have any adhesive surfaces exposed
to the printer.
l Finishes such as wove or smooth are recommended to ensure
good toner adhesion on envelopes.
2
Chapter – General Information 15
Many envelopes will feed through your HP LaserJet printer without
problems. However, some envelope constructions (as shown in the
figure below) will not feed reliably. Problems can occur when the
envelopes are folded more tightly than normal, causing a thick
leading edge near a corner. Folding inconsistencies at the
manufacturer can cause some envelopes to feed well and others to
jam. Purchase envelopes with the quality and consistency that you
require.
Good construction Bad construction
16 Guidelines for purchasing and using print media
Results of envelope testing
HP tests many types of envelopes to determine which on e s prin t
acceptably in an HP LaserJet printer. Some of the test results are
listed below.
l Commercial or Official envelopes (also called Business or
Regular), with diagonal seams and standard gum m e d flap s,
performed the most reliably.
l Envelopes with double-sided seam construction, which have
vertical seams at both ends of the envelope instead of diagonal
seams, tend to be more flimsy than diagonal-seam envelopes.
Double-side seam envelopes tend to jam or wrinkle unless the
edges are thin and sharply creased. However, a variety of
double-sided seam envelopes have performed accepta bly during
testing.
l Envelopes with a peel-off adhesive strip, or with more than one
flap that folds over for sealing, must use adhesives compatible
with the heat and pressure of the printer’s fusing process. Many
varieties of this type of envelope performed satisfactorily in HP
testing; however, the extra flaps and strips can r esult in increased
jamming or wrinkling.
l Generally, feeding problems increase with envelope size. Larger
envelope sizes (C5, B5) cannot have a basis weight greater t ha n
105 g/m
l Rougher finishes such as laid, linen, or cockle can result in poor
fusing due to poor contact between the hot fusing roll and the
bumpy surface.
2
(28 lb).
Chapter – General Information 17
Adhesive labels
Labels are multiple-layer media typically consisting of a face sheet
(the printable surface), pressure-sensitive adhesive, and a liner (a
carrier sheet coated with a release agent). Labels used in your HP
LaserJet printer must be specifically designed for laser printers. If
labels other than those compatible with laser printers are used, there
is a significant risk of labels peeling or adhesive contamination that
can severely damage your printer. All materials in laser label stock
must be compatible with the heat and pressure of the fusing process,
and must not melt or release undesirable emissions when heated to
205° C (401° F) for 0.1 second (0.2 second for HP Color LaserJet
printers).
CAUTION Not all HP Color LaserJet printers support printing on labels. Refer to
your user guide to determine if your printer supports labels.
Consider the information in this section when choosing label stock.
Face sheet
The face sheet is the printable surface on a sheet of adhesive labels
and can be made from different materials including paper, polyester,
and vinyl. It is common for a face sheet to be die-cut so that
individual shapes can be removed after printing. Polyester and vinyl
labels require a topcoat to provide the proper electr ical and toner
adhesion properties. It is important to purchase labels from a
knowledgeable converter who familiar with these processes and laser
printing.
Adhesives
Different adhesives can provide removable, permanent, or semipermanent fixturing of the face sheet onto the item being labeled.
Generally, acrylic-based adhesives are preferred for laser printing
because they can be applied in very thin layers to prevent oozing and
contamination, and can be made compatible with the heat and
pressure of fusing. Improved processes are being developed to
minimize adhesive contamination such as zone coating or stripped
matrix. Zone coating recesses the adhesive around the border of a
die-cut, and stripped matrix prevents adhesive from oozing between
the die-cut labels. The adhesive and liner must provide adequate
release strength so that labels will not peel during printing.
18 Guidelines for purchasing and using print media
Liner
The liner is the carrier sheet for the label material. This must provide
stability for the reliable pick-up and transport of the label stock
through the printer.
Recommendations
l Regularly inspect your labels after printing for any indication of
label edges lifting or adhesive contamination on t he print surface.
If either of these problems are observed, it is recommended that
you discontinue use of that box or lot number and discuss the
problem with your label supplier.
l If many sheets of labels are being continuously run, periodically
run several sheets of paper through the printer to clean any
contamination on label stock that might have deposited.
l Run full sheets of labels. Reprinting unused portions can
increase the risk of label peeling and adhesive cont am in atio n .
Chapter – General Information 19
Overhead transparencies
Overhead transparency film must be designed specifically for use
with laser printers. Photocopy transparency film might not be
compatible with laser printers because of higher temperature and
stiffness requirements. Color laser printers also require different film
than monochrome printers for proper color reproduction and fusing
needs.
Overhead transparency film is very smooth and must have a topcoat
to provide the proper electrical and toner adhesion properties. A
transparency that is made of poor material s or that is too thin c an
easily melt in the fuser and damage your printer. The thickness
requirement for monochrome overhead transparency film is 0.10 to
0.11 mm (4.1 to 4.3 mils) and for color is 0.12 to 0.13 mm (4.8 to
5.2 mils).
Overhead transparency materials must be compatible with the heat
and pressure of the fusing process. Materials must not discolor,
offset, or release undesirable emissions when heated to 205° C
(401° F) for 0.1 second (0.4 second for HP Color LaserJet printers).
See your HP LaserJet printer user guide for detailed instructions on
using overhead transparencies. See "Overhead tranparen cies" in th e
"Print media specifications" section for mor e info rm a tio n.
See "HP LaserJet Black & White Transparency" or "HP Color
LaserJet Transparency" for informa tio n ab o ut or de r ing
HP transparencies.
20 Guidelines for purchasing and using print media
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