HP 1098 Service Manual

October 1998 Edition

HP LaserJet Printer Family Paper Specification Guide

HP LaserJet Printer Family

Paper Specification Guide ____

Publication number: 5040-9072 First edition, October 1998

Warranty

The information contained in this document is subject to change without notice.

Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Hewlett-Packard shall not be liable for any direct, indirect, incidental, consequential, or other damage alleged in connection with the furnishing or use of this information.

Hewlett-Pack ard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

Contents

1 Introduction

About the HP LaserJet printer family. . . . . . . . . . . . . . . . . . . . . . . . . 7

Basic theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Supported HP LaserJet products . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Alternate sources of information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Guidelines and specifications for selecting media

Important notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Recommendations to the customer. . . . . . . . . . . . . . . . . . . . . . . . . . 9

Buy media that meets specifications. . . . . . . . . . . . . . . . . . . . . 10

Test small amounts of media . . . . . . . . . . . . . . . . . . . . . . . . . . 10

General guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Basis weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Furnish (composition) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Curl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Finish (smoothness) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Felt side vs. wire side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Paper specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

U.S. paper grades: Basic sizes and basis weights . . . . . . . . . . . . . 16

Weight Equivalence Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Comparisons of paper smoothness. . . . . . . . . . . . . . . . . . . . . . . . . 18

Recycled paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Archival paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Colored paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Paper with cutouts or perforations . . . . . . . . . . . . . . . . . . . . . . 20

Preprinted forms and letterhead . . . . . . . . . . . . . . . . . . . . . . . . 21

Envelope specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Envelope construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Adhesive label specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Label stock facts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Overhead transparency specifications . . . . . . . . . . . . . . . . . . . . . . 30

Types of media to avoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3 Purchasing, shipping, and storing media

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Purchasing media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Overhead transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Shipping media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Contents 5

Storing media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Environmental considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4 Troubleshooting

Factors contributing to print problems. . . . . . . . . . . . . . . . . . . . . . . 39

Two-sided printing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Automatic duplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Manual duplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Indications of paper problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

High rates of jams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

High rates of multiple feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Post-image curl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Indications of envelope problems . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Gray background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

High rates of jams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Wrinkling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

A Paper basis weights

B Postal customer recommendations statement

C Glossary

6 Contents

Index

Introduction

About the HP LaserJet printer family

HP LaserJet printers quietly produce documents of excellent print quality at speeds ranging from four to seventeen pages per minute. You can print on a variety of print media, including paper, envelopes, labels, and overhead transparencies. (Envelopes and labels are not supported on most HP Color LaserJet printers.) Many printer settings are easily selectable from the printer control panel.

Basic theory of operation

HP LaserJet printers use laser and electrophotographic technologies. In this process, 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 de veloped image then advances to the transfer station where the drum contacts the media and the toner image is electrostatically transferred onto the paper . After transf er , the media passes through the fuser where heat is applied and the toner fuses (melts) onto the media. The media is then delivered to the output bin, ready for use.

To create the printed image, the print media must be transported through the printer, charged electrostatically, and heated. This is why 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.

Chapter 1 – Introduction

Supported HP LaserJet products

This document provides useful guidelines for selecting media that will give you the best performance with most HP LaserJet printers and the HP LaserJet Companion.

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 information about print media specifications.

Alternate sources of information

The media manufacturer and vendor can pro vide you with inf ormation about the suitability of media for an HP LaserJet printer or the HP LaserJet Companion.

If you hav e 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.)

In the United States, HP offers support through the Customer Care Center. Call (208) 323-2551 from 6 am to 10 pm MST, Monday through Friday, or from 9 am to 4 pm MST, Saturday.

Supported HP LaserJet products

Guidelines and

specifications for selecting media

Important notice

Properties of media are subject to change by manufacturers. Hewlett-Packard 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.

Recommendations to the customer

HP LaserJet printers are designed to be flexible in the types of print media they can use. Howe v er , it is advisable to use quality media and, specifically, HP LaserJet or HP Multipurpose paper since it has been designed to work with HP LaserJet printers. If HP paper is available in your area, it is recommended that you use it.

Note HP recommends testing media prior to purchasing it in large quantities.

Chapter 2 – Guidelines and specifications for selecting media

Buy media that meets specifications

For best performance from your HP LaserJet printer, select high-quality print media that meets the guidelines and specifications in this document.

Test small amounts of media

If you are planning a large purchase of media, first print a small quantity in your printing environment. Subject the media to the temperature, humidity, and printing applications in which the media will be operating. HP recommends that you ask your media v endor f or a guarantee that their media will perform satisfactorily in your HP LaserJet printer and that the vendor will assume responsibility for the replacement of any media that will not print acceptably.

General guidelines

This section summarizes general guidelines for choosing print media.

Quality

HP LaserJet printers work best with high-quality media. Quality media for HP LaserJet printers are characterized by uniform physical properties, freedom from dust and lint, accurate cutting to size, and proper packaging. Proper packaging protects media from moisture and physical damage.

General guidelines

Avoid media with curled or bent edges , spots, dust or lint, wrinkling, or inaccurate size. These characteristics can cause misfeeding, jamming, premature wear of printer parts, or unsatisfactory print quality in the printer.

Size

Table 2-1 lists the names and dimensions of the most commonly used paper and envelopes. See the user documentation that came with your printer for specific information on the media supported by your HP LaserJet printer. Use only paper and envelopes that are unsupported by your printer.

Table 2-1. Common paper and envelope sizes

Type of media Name Dimensions

Paper Letter 8.5 by 11 in

(216 by 279 mm)

Paper Legal 8.5 by 14 in

(216 by 356 mm)

Paper Executive 7.25 by 10.5 in

(184 by 267 mm)

Paper Tabloid/Ledger 11 by 17 in

(279 by 432 mm)

Paper A3 297 by 420 mm

(11.7 by 16.5 in)

Paper A4 210 by 297 mm

(8.3 by 11.7 in)

Paper A5 148 by 210 mm

(5.8 by 8.3 in)

Paper B4 (JIS) 257 by 364 mm

(10.1 by 14.3 in)

Paper B5 (JIS) 182 by 257 mm

(7.2 by 10 in)

Paper J Postcard (hagaki) 100 by 148 mm

(3.9 by 5.8 in)

Paper J Double Postcard

(oufuku hagaki)

Envelope Commercial #10 105 by 241 mm

Envelope #7 3/4 (Monarch) 98 by 191 mm

Envelope DL 110 by 220 mm

Envelope C5 162 by 229 mm

Envelope B5 176 by 250 mm

148 by 200 mm (5.8 by 7.9 in)

(4.1 by 9.5 in)

(3.9 by 7.5 in)

(4.3 by 8.7 in)

(6.4 by 9.0 in)

(6.9 by 9.8 in)

Chapter 2 – Guidelines and specifications for selecting media

Basis weight

Basis weight (also called grammage) is an important characteristic of paper. Paper that is too light or too heavy can cause misfeeds, mis-stacking, paper jams, poor print quality, or excessive mechanical wear in the printer.

CAUTION Avoid using extremely heavy paper. Use paper that falls within your

printer’s specified basis weight, as shown in appendix A or in the user documentation that came with your printer.

Furnish (composition)

Furnish is the mixture of various materials used to make the paper stock. For optimum performance of your HP LaserJet printer, use paper made from 100 percent chemical wood pulp and/or cotton fiber. Recycled paper, made with no more than 5 percent groundwood, is also acceptable. To ensure that paper of a special fiber composition will work correctly in your printer, test it before purchasing large quantities. Other components in paper are sizing, fillers, and pigments.

Note Avoid using coated paper or paper containing materials that melt,

vaporize, offset, discolor, or release hazardous emissions when exposed to 205° C (401° F) for 0.1 second (0.2 second for HP Color LaserJet printers).

General guidelines

Curl

Curl is curvature in a sheet of paper. It is typically measured by la ying the sheet of paper on a flat surface, with the corners up, and measuring the height of the corners. There are two types of curl:

In-ream curl is the amount of curl in a sheet of paper before

printing. In-ream curl results from the paper-manufacturing process or from exposure to the environment. Paper with excessive in-ream curl might lead to feeding and print-quality problems.

Post-image curl is the amount of curl in a sheet of paper after

printing. Post-image curl results from exposure to the fusing process and paper path in the printer. Paper with excessive post-image curl may be difficult to handle or to use in automatic-feed photocopiers.

Finish (smoothness)

Paper for laser printers should not have a heavy texture or a glossy smoothness. Printed output on textured paper may have broken character edges and show poor toner adhesion. On the HP Color LaserJet printers, textured paper will cause inconsistent or blotchy colors and may wrinkle in the fuser. Glossy-smooth paper tends to highlight defects such as stra y toner particles, and may not hold toner . For sharp resolution or detail, use a smooth paper.

Paper finish is typically measured using air leak methods. We recommend a range for smoothness using the Sheffield method. Equivalent values for other methods can be found in Figure 2-1 on page 18.

Avoid using paper with embossed or raised surfaces because spotty printing and misfeeding may occur. It is possible to print satisfactorily on paper that has embossed areas in the leading edge, trailing edge, or in areas where print will not appear on the paper; however, misfeeding or jamming may occur.

Felt side vs. wire side

Some methods of manufacturing paper result in two-sided paper properties. Along with other process variations, these properties can make one side of the paper the preferred side on which to print. The “top” side of the paper sheet, as it is formed, is known as the felt side. The “bottom” is known as the wire side. Most manufacturers indicate the preferred printing side on the package.

Chapter 2 – Guidelines and specifications for selecting media

Paper specifications

Use conventional white xerographic paper for most printing. The paper should be high quality and free of cuts, tears, grease spots, loose particles, dust, wrinkles, voids, and curled or bent edges. Xerographic papers, also called photocopy or xerocopy papers, are usually made from 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.

Some printing applications may require a paper with a more prestigious look or feel. Bond papers generally hav e 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 xerographic papers. Your HP LaserJet printer will print black satisfactorily on many of these bond papers. Using this type of paper on HP Color LaserJet printers can degrade color print quality. However, paper manufacturers are now making laser-grade bond papers, which have properties optimized for laser printing.

Note For paper specifications specific to Magnetic Ink Character Recognition

(MICR) printing applications, refer to the HP part number 5091-3857.

HP MICR User’s Guide

One of the most important things you can do to ensure the best performance from your HP LaserJet printer is to select high-quality media. It is recommended that you use HP media. If you are not using HP media, see Table 2-2, which summarizes the specifications of paper that provide the best performance.

Note Paper ma y meet the general specifications listed in Table 2-5 and still

not print satisfactorily because of the printing environment or other variables over which HP has no control.

Paper specifications

Table 2-2. Paper specifications

Description Specifications

Basis weight See appendix A or the user documentation for

your printer

Brightness 83% minimum. Recycled paper may not be as

bright Caliper Depends on basis cut ranges Curl In-ream: flat within 5 mm (0.2 in) Cut edge

conditions Electrical surface

resistivity Electrical volume

resistivity Finish 100 to 190 (Sheffield) for HP Color LaserJet

Finishing precision Cut sheet to within ±0.03 inch (± 0.8 mm) of

Furnish (fiber composition)

Fusing compatibility Must not scorch, melt, offset, or release hazardous

Grain Long grain Moisture content 4% to 6% by weight Opacity 85% minimum Packaging Polylaminated moisture-proof ream wrap pH 5.5 pH minimum Stiffness 1.6 minimum machine direction, 0.6 minimum

Wax pick 12 minimum (Dennison)

Cut with sharp blades with no visible fray and no

dust

2.0 to 15 by 10

ohms/in

(conditioned at 23° C and 50% RH)

1.2 to 15 by 10

(conditioned at 23

ohms/cm

C and 50% RH)

printers;

100 to 250 for all other HP LaserJet printers.

nominal and ± 0.2

square

100% chemical wood pulp and/or cotton fiber;

recycled paper with up to 5% groundwood may be

used

emissions when heated to 205° C (401° F) for

0.1 second (0.2 second for HP Color LaserJet

printers)

cross direction (Taber)

Chapter 2 – Guidelines and specifications for selecting media

U.S. paper grades: Basic sizes and basis weights

The U.S. paper grading system has evolved from custom and usage rather than from a technical background, resulting in similar papers having different stated weights. For example, a 24# bond paper is exactly the same weight as a 60# book or a 60# text or a 33# cover. This is because basis weight is defined as the weight of 500 sheets of paper cut to basic size. The basic size for bond, book/text, cover, index, bristol, and tag are all different so the given weights for these paper grades may be diff erent although the ph ysical weight is virtually identical. Table 2-3 will help clarify these differences. Note the difference in basic size for each grade, which affects the weight of 500 sheets of that grade.

Table 2-3. Common paper grades and basis weights

Paper grade Basic size Basic area Factor Equivalent

Bond 432 by 559 mm

Text 635 by 965 mm

Book (coated or uncoated)

Cover 508 by 660 mm

Bristol 571 by 724 mm

Index 648 by 775 mm

Tag 610 by 910 mm

Metric weight none none 3.76

(17 by 22 in)

(25 by 38 in) 635 by 965 mm

(25 by 38 in)

(20 by 26 in)

(22.5 by 28.5 in)

(25.5 by 30.5 in)

(24 by 36 in)

241 m (374.0 sq. in)

613 m (950.0 sq. in)

335 m (520.0 sq. in)

414 m2 (641.25 sq. in)

502 m2 (777.75 sq. in)

557 m (864.0 sq. in)

1.00 24# bond

2.54 61# text

2.54 61# book

1.39 33# cover

1.71 41# bristol

2.08 50# index

2.31 55# tag

basis weights (example)

90 g/m

(

U.S. paper grades: Basic sizes and basis weights

Weight Equivalence Table

Table 2-4 shows equivalent weights for different grades of paper. Shaded boxes indicate a commonly a v ailab le standard weight for that grade.

Table 2-4. Weight equivalence table

Bond wt. (17 x 22)

16# 41# 22# 27# 33# 37# 17# 43# 24# 29# 35# 39# 20# 50# * 28# 34# 42# 46# 21# 54# 30# 36# 44# 49# 24# 60# * 33# 41# 50# 55# 27# 68# 37# 45# 55# 61# 28# 70# * 39# 49# 58# 65# 29# 74# 41# 50# 61# 68# 32# 80# * 44# 55# 67# 74# 36# 90# 50# 62# 75# 83# 39# 40# 101# 55# 68# 83# 92# 43# 110# 45# 115# 63# 77# 94# 104# 47# 119# 51# 128# 70# 86# 105# 117# 53# 134# 74# 90# 54# 137# 75# 93# 113# 58# 146# 65# 165# 66# 169# 92# 114# 138# 154# 67# 171# 94# 115# 70# 178# 98# 72# 183#

Text/ Book wt. (25 x 38)

100# 55# 67# 82# 91#

Cover wt. (20 x 26)

60# 74# 90# 100#

65# 80# 97# 108#

80# 98# 120# 133# 90# 111# 135# 150#

100# 123# 150# 166#

Bristol wt. (22.5 x 28.5)

120# 146# 162#

Index wt. (25.5 x 30.5)

110# 122#

140# 155#

Tag wt. (24 x 36) Metric wt.

125#

60 g/m 64 g/m 75 g/m 80 g/m 90 g/m 100 g/m 105 g/m 110 g/m 120 g/m 135 g/m 148 g/m 150 g/m 163 g/m 170 g/m 176 g/m 190 g/m 199 g/m 203 g/m 216 g/m 244 g/m 250 g/m 253 g/m 264 g/m 271 g/m

2 2 2 2 2

2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

Note T e xt and book grades marked with an * actually calculate out to 51, 61,

71, and 81, but are rounded to standard book/text weights of 50, 60, 70, and 80.

Chapter 2 – Guidelines and specifications for selecting media

Comparisons of paper smoothness

Smoothness typically is expressed in terms of Sheffield, Gurley , Bekk, or Bendtsen units. HP LaserJet printers generally require a smoothness of between 100-250 Sheffield. Figure 2-1 compares the different types of smoothness.

Sheffield Gurley S-P-S Bekk Bendtsen

(3 PSI) (1 KG/CM

(CC by 10-2/MIN) (SEC./100 CC) (SEC/10 CC) (CC/MIN)

Figure 2-1 Interrelation among methods of air-leak smoothness

Comparisons of paper smoothness

Recycled paper

Recycled paper is a combination of printed waste paper, preconsumer waste, and post-consumer waste. Printed waste paper is usually washed to remove most of the inks and other contaminants . A recycled sheet of paper may contain dark specks or appear gray or dirty. Choose recycled paper that meets the same specifications, except brightness, as standard paper (see Table 2-2) and that has an appearance suitable for your needs. HP recommends that recycled paper contain no more than 5 percent 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, requiring a specific 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 plasticizers, such as those f ound in vin yl 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 Table 2-2).

The HP Color LaserJet printers are optimal for printing 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 may change 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. Since the printer cannot sense what color of paper you are using, it cannot adjust the output colors for colored paper.

Chapter 2 – Guidelines and specifications for selecting media

Paper with cutouts or perforations

Using paper with cutouts or perforations could result in more feeding and contamination problems with your printer.

Cutouts: A cutout is any portion of the paper that has been removed, including binder holes, notches, and square cuts. Cutouts can interact with paper position sensors in the printer or can result in contamination by toner if printing at a cutout location.

Perforations: Perforations are a series of holes or slits punched through the paper to aid in separating one piece of paper from another. Perforations can create paper dust contamination or reduce the stiffness of the paper so that paper buckles during feeding. These papers often cause paper jams, misfeeds, and paper-handling problems, and they may damage the printer.

If you must use papers with internal perforations or cutouts, follow these guidelines:

Punch cutouts and perforations from the side to be printed on, so

that edge trimmings will not scratch the photosensitive drum. Avoid printing at a cutout location or closer than 3 mm (0.125 in)

to the edge of a cutout. This will prevent toner from contaminating the inside of the printer.

Cut cutouts and perforations cleanly (without burrs) to avoid

multiple feed, contaminants, or paper jam problems. On most printers, avoid perforations that run across the page,

perpendicular to the paper path. With an HP Color LaserJet printer, when printing on letter, A4,

and executive-size paper, avoid perforations that run down the page because these paper sizes load long-edge first. When the printer transfers paper from one set of rollers to the next, a perforation can cause the page to bend downward and miss the pickup point on the next roller.

Comparisons of paper smoothness

Preprinted forms and letterhead

To avoid multiple feed and jamming problems when using preprinted forms, embossed paper, and letterhead paper, observe the following guidelines:

Avoid using low-temperature inks (the kind used with some types

of thermography). Use forms and letterhead paper printed by offset lithography or

engraving. Print forms with heat-resistant inks that will not melt, vaporize, or

release hazardous emissions when heated to 205° C (401° F) for

0.1 second (0.2 second for the HP Color LaserJet printers). 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 paper’s electrical or handling properties. Seal the forms in moisture-proof wrap to prev ent moisture changes during storage.

Avoid processing preprinted forms with a finish or coating.

Avoid using heavily embossed or raised letterhead papers.

Avoid papers with heavily textured surfaces.

Chapter 2 – Guidelines and specifications for selecting media

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