HP LaserJet 1020 User Manual

HP LaserJet 1020
User Guide
HP LaserJet 1020 printer
User Guide
Copyright information
© 2010 Copyright Hewlett-Packard Development Company, L.P.
Reproduction, adaptation or translation without prior written permission is prohibited, except as allowed under the copyright laws.
Part number: Q5911-90949
Edition 2, 06/2010
The information contained herein is subject to change without notice.
The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
Trademark credits
Microsoft® and Windows® are U.S. registered trademarks of Microsoft Corporation.
ENERGY STAR and the ENERGY STAR mark are registered U.S. marks.
Table of contents
1 Printer basics .................................................................................................................................................. 1
Quick access to more information ........................................................................................................ 2
Web links for drivers, software, and support ........................................................................ 2
HP LaserJet 1020 printer .................................................................................... 2
User guide links ................................................................................................................... 2
Where to look for more information ..................................................................................... 2
Printer configuration ............................................................................................................................. 3
HP LaserJet 1020 printer ..................................................................................................... 3
Walkaround .......................................................................................................................................... 4
Printer control panel ............................................................................................................................. 5
Media paths .......................................................................................................................................... 6
Priority feed slot ................................................................................................................... 6
Main input tray ..................................................................................................................... 6
Output bin ............................................................................................................................ 6
Printer connections ............................................................................................................................... 7
Connecting the USB cable ................................................................................................... 7
Printer software .................................................................................................................................... 8
Supported operating systems .............................................................................................. 8
Printer software for Windows computers ............................................................................. 8
To install printer software for all other operating systems ................................... 8
Printer drivers ...................................................................................................................... 8
Printer properties (driver) ..................................................................................................... 8
Printer properties online help ............................................................................................... 9
Print setting priorities ........................................................................................................... 9
Printer information page ...................................................................................... 9
Printer information page ..................................................................................................................... 10
Printer Test page ............................................................................................................... 10
Printer media considerations .............................................................................................................. 11
Supported media sizes ...................................................................................................... 11
2 Printing tasks ................................................................................................................................................ 13
Manual feed ........................................................................................................................................ 14
Canceling a print job ........................................................................................................................... 15
Understanding print quality settings ................................................................................................... 16
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Optimizing print quality for media types ............................................................................................. 17
Guidelines for using media ................................................................................................................. 18
Paper ................................................................................................................................. 18
Labels ................................................................................................................................ 18
Label construction ............................................................................................. 19
Transparencies .................................................................................................................. 19
Envelopes .......................................................................................................................... 19
Envelope construction ....................................................................................... 19
Envelopes with double-side seams ................................................................... 19
Envelopes with adhesive strips or flaps ............................................................ 20
Envelope storage .............................................................................................. 20
Cardstock and heavy media .............................................................................................. 20
Cardstock construction ...................................................................................... 20
Cardstock guidelines ......................................................................................... 21
Letterhead and preprinted forms ....................................................................................... 21
Choosing paper and other media ....................................................................................................... 22
HP media ........................................................................................................................... 22
Media to avoid ................................................................................................................... 22
Media that might damage the printer ................................................................................. 22
Loading media into the input trays ..................................................................................................... 24
Priority feed slot ................................................................................................................. 24
150-sheet main input tray .................................................................................................. 24
Printing an envelope ........................................................................................................................... 25
Printing multiple envelopes ................................................................................................................ 27
Printing on transparencies or labels ................................................................................................... 29
Printing on letterhead and preprinted forms ....................................................................................... 30
Printing on custom-size media and cardstock .................................................................................... 31
Printing on both sides of the paper (manual two-sided printing) ........................................................ 32
Printing multiple pages on a single sheet of paper (N-up printing) ..................................................... 34
Printing booklets ................................................................................................................................. 35
Printing watermarks ............................................................................................................................ 37
3 Maintenance .................................................................................................................................................. 39
Cleaning the printer ............................................................................................................................ 40
Cleaning the print cartridge area ....................................................................................... 40
Cleaning the printer media path ......................................................................................... 41
Changing the pickup roller .................................................................................................................. 43
Cleaning the pickup roller ................................................................................................................... 46
Changing the printer separation pad .................................................................................................. 47
Redistributing toner ............................................................................................................................ 49
Changing the print cartridge ............................................................................................................... 51
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4 Problem solving ............................................................................................................................................ 53
Finding the solution ............................................................................................................................ 54
Step 1: Is the printer set up correctly? ............................................................................... 54
Step 2: Is the Ready light on? ............................................................................................ 54
Step 3: Can you print a Printer Test page? ....................................................................... 54
Step 4: Is the print quality acceptable? .............................................................................. 55
Step 5: Is the printer communicating with the computer? .................................................. 55
Step 6: Does the printed page look like you expected? ..................................................... 55
Contact HP support ........................................................................................................... 55
Status light patterns ............................................................................................................................ 56
Paper handling problems ................................................................................................................... 58
Media jam .......................................................................................................................... 58
Print is skewed (crooked) .................................................................................................. 58
More than one sheet of media feeds through the printer at one time ................................ 58
Printer does not pull media from the media input tray ....................................................... 58
Printer curled the media ..................................................................................................... 59
Print job is extremely slow ................................................................................................. 59
Printed page is different than what appeared on screen .................................................................... 60
Garbled, incorrect, or incomplete text ................................................................................ 60
Missing graphics or text, or blank pages ........................................................................... 60
Page format is different than on another printer ................................................................ 61
Graphics quality ................................................................................................................. 61
Printer software problems .................................................................................................................. 62
Improving print quality ........................................................................................................................ 63
Light or faded print ............................................................................................................. 63
Toner specks ..................................................................................................................... 63
Dropouts ............................................................................................................................ 63
Vertical lines ...................................................................................................................... 64
Gray background ............................................................................................................... 64
Toner smear ...................................................................................................................... 64
Loose toner ........................................................................................................................ 65
Vertical repetitive defects ................................................................................................... 65
Misformed characters ........................................................................................................ 65
Page skew ......................................................................................................................... 66
Curl or wave ....................................................................................................................... 66
Wrinkles or creases ........................................................................................................... 66
Toner scatter outline .......................................................................................................... 67
Water droplets on bottom edge ......................................................................................... 67
Clearing jams ..................................................................................................................................... 68
Typical media jam locations ............................................................................................... 68
Removing a jammed page ................................................................................................. 68
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Appendix A Printer specifications ................................................................................................................. 71
Environmental specifications .............................................................................................................. 72
Power consumption, electrical specifications, and acoustic emissions .............................................. 73
Physical specifications ....................................................................................................................... 74
Printer capacities and ratings ............................................................................................................. 75
Memory specifications ........................................................................................................................ 76
Appendix B Regulatory information .............................................................................................................. 77
FCC compliance ................................................................................................................................. 78
Declaration of Conformity statement .................................................................................................. 79
Regulatory statements ....................................................................................................................... 80
Laser safety ....................................................................................................................... 80
Canadian DOC regulations ................................................................................................ 80
EMC statement (Korea) ..................................................................................................... 80
Laser statement for Finland ............................................................................................... 80
Substances Table (China) ................................................................................................. 81
Environmental product stewardship program ..................................................................................... 82
Protecting the environment ................................................................................................ 82
Ozone production .............................................................................................................. 82
Power consumption ........................................................................................................... 82
Toner consumption ............................................................................................................ 82
Paper use .......................................................................................................................... 82
Plastics .............................................................................................................................. 82
HP LaserJet print supplies ................................................................................................. 82
Return and recycling instructions ....................................................................................... 83
United States and Puerto Rico .......................................................................... 83
Multiple returns (more than one cartridge) ....................................... 83
Single returns ................................................................................... 83
Shipping ............................................................................................ 83
Non-U.S. returns ............................................................................................... 84
Paper ................................................................................................................................. 84
Material restrictions ............................................................................................................ 84
Disposal of waste equipment by users in private households in the European Union ...... 84
Chemical substances ......................................................................................................... 84
Material Safety Data Sheet (MSDS) .................................................................................. 84
For more information ......................................................................................................... 84
Material safety data sheet .................................................................................................................. 86
Appendix C Warranty and licensing .............................................................................................................. 87
Hewlett-Packard limited warranty statement ...................................................................................... 88
Hewlett-Packard software license agreement .................................................................................... 89
Print cartridge limited warranty ........................................................................................................... 90
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Appendix D HP parts and accessories .......................................................................................................... 91
Ordering supplies ............................................................................................................................... 92
Using HP print cartridges ................................................................................................................... 93
HP policy on non-HP print cartridges ................................................................................. 93
Storing print cartridges ....................................................................................................... 93
Print cartridge life expectancy ............................................................................................ 93
Saving toner ....................................................................................................................... 93
Appendix E Service and support .................................................................................................................... 95
Availability of support and service ...................................................................................................... 96
Customer self-repair warranty service ............................................................................... 96
Guidelines for repacking the printer ................................................................................................... 97
How to contact HP .............................................................................................................................. 98
Index ................................................................................................................................................................... 99
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1 Printer basics

This chapter provides information on the following topics:
Quick access to more information
Printer configuration
Walkaround
Printer control panel
Media paths
Printer connections
Printer software
Printer information page
Printer media considerations
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Quick access to more information

The following sections provide resources for additional information about the HP LaserJet 1020 printer.

Web links for drivers, software, and support

If you need to contact HP for service or support, use one of the following links.
HP LaserJet 1020 printer
In the United States, see
In other countries/regions, see
http://www.hp.com/support/lj1020/.
http://www.hp.com/.

User guide links

Walkaround on page 4 (location of printer components)
Changing the print cartridge on page 51
Problem solving on page 53
Ordering supplies on page 92

Where to look for more information

CD user guide: Detailed information on using and troubleshooting the printer. Available on the
CD-ROM that came with the printer.
Online Help: Information on printer options that are available from within printer drivers. To view
a Help file, access the online Help through the printer driver.
HTML (online) user guide: Detailed information on using and troubleshooting the printer. Available
at
http://www.hp.com/support/lj1020/. Once connected, select Manuals.
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Printer configuration

Below is the standard configuration for the HP LaserJet 1020 printer.

HP LaserJet 1020 printer

14 pages per minute (ppm) for A4 media and 15 ppm for letter media
First page out in as few as 10 seconds
FastRes 1200: 1200 dpi effective output quality (600 x 600 x 2 dpi with HP Resolution Enhancement
technology [REt])
150-sheet main input tray
Priority feed slot
100-sheet output capacity
EconoMode (saves toner)
Print watermarks, booklets, multiple pages per sheet (N-up), and first page on different media than
rest of the document
2 MB RAM
2,000-page print cartridge
USB 2.0 High Speed
Power switch
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Walkaround

The following illustrations identify the components of the HP LaserJet 1020 printer.
1 Attention light
2 Ready light
3 Print cartridge door
4 Output media support
5 Priority feed slot
6 150-sheet main input tray
7 Output bin
1 On/off switch
2 Power receptacle
3 USB port
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Printer control panel

The printer control panel is composed of two lights. These lights produce patterns that identify your printer's status.
1 Attention light: Indicates that the printer media input trays are empty, the print cartridge door is open, the print cartridge
is missing, or other errors. See
2 Ready light: Indicates that the printer is ready to print.
Printer information page on page 10 for more information.
NOTE: See Status light patterns on page 56 for a description of the light patterns.
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Media paths

The following sections describe the input trays and output bin.

Priority feed slot

You should use the priority feed slot when feeding one sheet of paper, envelope, postcard, label, or transparency. You can also use the priority feed slot to print the first page on different media than the rest of the document.
Media guides ensure that the media is correctly fed into the printer and that the print is not skewed (crooked on the media). When loading media, adjust the media guides to match the width of the media that you are using.
See Choosing paper and other media on page 22 for more information about media types.

Main input tray

The main input tray, accessed from the front of the printer, holds up to 150 sheets of 20-lb paper or other media. For information about media specifications, see
Media guides ensure the media is correctly fed into the printer and the print is not skewed (crooked on the media). The main input tray has both side and front media guides. When loading media, adjust the media guides to match the length and width of the media that you are using.

Output bin

Printer capacities and ratings on page 75.
The output bin is located on the top of the printer. Printed media is collected here in the correct sequence. The output media support provides improved stacking for large print jobs.
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Printer connections

The HP LaserJet 1020 printer supports USB 2.0 High Speed connections.

Connecting the USB cable

1. Plug the USB cable into the printer.
2. Plug the other end of the USB cable into the computer when prompted to do so during the software
installation.
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Printer software

The following sections describe the supported operating systems and the software that is provided with the HP LaserJet 1020 printer.
NOTE: Not all software is available in all languages.

Supported operating systems

The printer comes with software for the following operating systems:
Windows Vista (32-bit and 64-bit)
Windows XP (32-bit and 64-bit)
Windows 7 (32-bit and 64-bit)
Windows Server 2003 (32-bit and 64-bit)
For more information about upgrading from Windows 2000 Server to Windows Server 2003, using Windows Server 2003 Point and Print, or using Windows Server 2003 Terminal Services and Printing, go to

Printer software for Windows computers

The following sections provide instructions for installing the printer software on various Windows operating systems and the software that is available to all users of the printer.
http://www.microsoft.com/.
To install printer software for all other operating systems
Insert the software CD that came with the printer into the computer CD-ROM drive. Follow the on­screen installation instructions.
NOTE: If the Welcome screen does not open, click Start on the Windows task bar, click Run, type
Z:\setup (where Z is your CD drive letter), and click OK.

Printer drivers

A printer driver is the software component that provides access to printer features and provides the means for the computer to communicate with the printer.

Printer properties (driver)

Printer properties control the printer. You can change the default settings, such as media size and type, printing multiple pages on a single sheet of media (N-up printing), resolution, and watermarks. You can access the printer properties in the following ways:
Through the software application that you are using to print. This only changes the settings for the
current software application.
Through the Windows operating system. This changes the default settings for all future print jobs.
NOTE: Because many software applications use a different method of accessing the printer
properties, the following section describes the most common methods used in Windows Vista, 7, and Windows XP.
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To only change the settings for the current software application
NOTE: Although the steps can vary between software applications, this is the most common method.
1. From the File menu in the software application, click Print.
2. On the Print dialog, click Properties.
3. Change the settings, and click OK.
To change the default settings for all future print jobs in Windows
1. Windows Vista and Windows 7: Click Start, click Control Panel, and then in the category for
Hardware and Sound click Printer.
Windows XP and Windows Server 2003 (using the default Start menu view): Click Start, and then click Printers and Faxes.
Windows XP and Windows Server 2003 (using the Classic Start menu view): Click Start, click Settings, and then click Printers.
2. Right-click the driver icon, and then select Printing Preferences.

Printer properties online help

The printer properties (driver) online help includes specific information about the functions in the printer properties. This online help guides you through the process of changing your printer's default settings. For some drivers, online help gives instructions on using context-sensitive help. Context-sensitive help describes the options for the driver feature you are currently accessing.
To access the printer properties online help
1. From the software application, click File, and then click Print.
2. Click Properties, and then click Help.

Print setting priorities

There are two ways to change print settings for this printer: in the software application or in the printer driver. Changes made in the software application override settings changed in the printer driver. Within a software application, changes made in the Page Setup dialog box override changes made in the Print dialog box.
Printer information page
If a particular print setting can be changed in more than one of the ways listed above, use the method that has the highest priority.
ENWW Printer software 9

Printer information page

The Printer Test page is a printer information page that resides within the memory of the printer. During installation you can choose to print the Printer Test page. If the page prints, you correctly installed the printer.

Printer Test page

The Printer Test page contains information about printer driver and port settings. The page also contains information about the printer name and model, computer name, and so on. You can print the Printer Test page from the printer driver.
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Printer media considerations

HP LaserJet printers produce excellent print quality. The printer accepts a variety of media, such as cut­sheet paper (including recycled paper), envelopes, labels, transparencies, vellum, and custom-size paper. Properties such as weight, grain, and moisture content are important factors affecting printer performance and output quality.
The printer can use a variety of paper and other print media in accordance with the guidelines in this user guide. Media that does not meet these guidelines might cause the following problems:
Poor print quality
Increased media jams
Premature wear on the printer, requiring repair
For best results, use only HP brand paper and print media. Hewlett-Packard Company cannot recommend the use of other brands. Because they are not HP products, HP cannot influence or control their quality.
It is possible for media to meet all of the guidelines in this user guide and still not produce satisfactory results. This might be the result of improper handling, unacceptable temperature and humidity levels, or other variables over which HP has no control.
Before purchasing a large quantity of media, make sure that it meets the requirements specified in this user guide and in the HP LaserJet printer family print media guide. The guidelines can be downloaded from
http://www.hp.com/support/ljpaperguide/ or see Ordering supplies on page 92 for more
information about ordering the guidelines. Always test media before you purchase a large quantity.
CAUTION: Using media that does not meet HP's specifications might cause problems for the printer,
requiring repair. This repair is not covered by the HP warranty or service agreements.

Supported media sizes

For information about supported media sizes, see Printer capacities and ratings on page 75.
ENWW Printer media considerations 11
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2 Printing tasks

This chapter provides information on the following topics:
Manual feed
Canceling a print job
Understanding print quality settings
Optimizing print quality for media types
Guidelines for using media
Choosing paper and other media
Loading media into the input trays
Printing an envelope
Printing multiple envelopes
Printing on transparencies or labels
Printing on letterhead and preprinted forms
Printing on custom-size media and cardstock
Printing on both sides of the paper (manual two-sided printing)
Printing multiple pages on a single sheet of paper (N-up printing)
Printing booklets
Printing watermarks
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Manual feed

You can use manual feed when printing mixed media, for example, an envelope, then a letter, then an envelope, and so on. Feed an envelope into the priority feed slot and load letterhead into the main input tray.
To print using manual feed
1. Access the printer properties (or printing preferences in Windows XP, Windows Vista, and
Windows 7). See
2. On the Paper/Quality tab, select Manual Feed from the Source is drop-down list.
3. Feed media into the priority feed slot, and click Continue.
Printer properties (driver) on page 8 for instructions.
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Canceling a print job

You can cancel a print job from a software application or a print queue.
To stop the printer immediately, remove the remaining paper from the printer. After the printer stops, use one of the following options.
Software application: Typically, a dialog box appears briefly on your screen, allowing you to
cancel the print job.
Windows print queue: If a print job is waiting in a print queue (computer memory) or print spooler,
delete the job there. Click Start, Settings, and Printers or Printers and Faxes. Double-click the HP LaserJet 1020 icon to open the window, select your print job, and click Delete or Cancel.
If the status lights on the control panel continue to blink after you cancel a print job, the computer is still sending the job to the printer. Either delete the job from the print queue or wait until the computer finishes sending data. The printer will return to the Ready state.
ENWW Canceling a print job 15

Understanding print quality settings

Print quality settings affect how light or dark the print is on the page and the style in which the graphics are printed. You can also use the print quality settings to optimize the print quality for a specific media type. See
You can change the settings in the printer properties to accommodate the types of jobs you are printing. The following are the settings:
1. Access the printer properties (or printing preferences in Windows XP, Windows Vista, and
2. On the Finishing tab, select the print quality setting you want to use.
NOTE: Not all printer features are available in all drivers or operating systems. See the printer
properties (driver) online Help for information about the availability of features for that driver.
NOTE: To change the print quality settings for all future print jobs, access the properties through the
Start menu in the Windows task bar. To change the print quality settings only for the current software
application, access the properties through the Print Setup menu in the application you are using to print. See
Optimizing print quality for media types on page 17 for more information.
FastRes 1200: This setting provides 1200 dpi effective output quality (600 x 600 x 2 dpi with HP Resolution Enhancement technology [REt]).
600 dpi: This setting provides 600 x 600 dpi output with Resolution Enhancement technology (REt) for improved text.
EconoMode (Save Toner): Text is printed using less toner. This setting is useful when you are printing drafts. You can turn on this option independently of other print quality settings.
Windows 7). See
Printer properties (driver) on page 8 for more information.
Printer properties (driver) on page 8 for instructions.
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Optimizing print quality for media types

Media type settings control the temperature of your printer's fuser. You can change the settings for the media that you are using to optimize the print quality.
The HP LaserJet 1020 printer provides a number of print modes that allow the unit to adapt more specifically to the printer's media environment. The following tables provide an overview of the driver print modes.
NOTE: When using the CARDSTOCK, ENVELOPE, LABEL, and ROUGH modes, the printer pauses
between pages and the number of pages per minute decreases.
Table 2-1 Driver print default modes
Mode Media
PLAIN
LIGHT
HEAVY
CARDSTOCK Cardstock or thick media
TRANSPARENCY 4-mil, 0.1 monochrome overhead transparencies (OHTs)
ENVELOPE Standard envelopes
LABEL Standard HP LaserJet labels
BOND Bond paper
ROUGH Rough paper
COLOR Plain media
LETTERHEAD Plain media
PREPRINTED Plain media
PREPUNCHED Plain media
RECYCLED Plain media
VELLUM Plain media
75 to 104 g/m2 (20 to 27 lb)
< 75 g/m2 (20 lb)
90 to 105 g/m2 (24 to 28 lb)
ENWW Optimizing print quality for media types 17

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 select media that optimizes print quality and avoid media that might cause jams or damage the printer.

Paper

For best results, use conventional 75 g/m2 (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 printer.
Table 2-2 Paper usage
Symptom Problem with paper Solution
Poor print quality or toner adhesion
Problems with feeding
Dropouts, jamming, or curl Stored improperly Store paper flat in its moisture-proof
Increased gray background shading Might be too heavy Use lighter paper.
Excessive curl
Problems with feeding
Jamming or damage to printer Cutouts or perforations Do not use paper with cutouts or
Problems with feeding Ragged edges Use good quality paper.
Too moist, too rough, too smooth, or embossed
Faulty paper lot
Too moist, wrong grain direction, or short-grain construction
Try another kind of paper between 100-250 Sheffield and 4-6% moisture content.
Check the printer and make sure that the appropriate media type has been selected.
wrapping.
Use long-grain paper.
Check the printer and make sure that the appropriate media type has been selected.
perforations.
NOTE: The printer 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 printer temperature. The printer's maximum temperature is 200°C (392°F) 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 designed for Inkjet printers or other low-temperature printers. Use only transparencies that are specified for use with HP LaserJet printers.

Labels

HP recommends that you print labels from the priority feed slot.
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CAUTION: Do not feed a sheet of labels through the printer more than once. The adhesive degrades
and might damage the printer.
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 printer's maximum
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: Prior to printing, labels must lie flat with no more than 13 mm (0.5 inches) of curl in any
direction.
Condition: Do not use labels with wrinkles, bubbles, or other indications of separation.

Transparencies

Transparencies must be able to withstand the printer's maximum temperature of 200°C (392°F).

Envelopes

HP recommends that you print envelopes from the priority feed slot.
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
result.
Construction: Prior to printing, envelopes should lie flat with less than 6 mm (0.25 inches) curl
and should not contain air. Envelopes that trap air might cause problems. Do not use envelopes that contain clasps, snaps, tie strings, transparent windows, holes, perforations, cut outs, synthetic materials, stamping, or embossing. Do not use envelopes with adhesives that do not require moistening, but rely instead on 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.
Sizes: The envelope sizes range from 90 x 160 mm (3.5 x 6.3 inches) to 178 x 254 mm
(7 x 10 inches).
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.
2
(24 lb) or jamming might
ENWW Guidelines for using media 19
1 acceptable envelope construction
2 unacceptable envelope construction
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 printer. The printer's maximum temperature is 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.

Cardstock and heavy media

You can print many types of cardstock from the media input trays, including index cards and postcards. Some cardstock performs better than others because its construction is better suited for feeding through a laser printer.
For optimum printer performance, do not use paper heavier than 157 g/m
2
(42 lb). Paper that is too heavy might cause misfeeds, stacking problems, paper 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.
Cardstock construction
2
Smoothness: The 135-157 g/m
100-180 Sheffield; 60-135 g/m 100-250 Sheffield.
Construction: Cardstock should lie flat with less than 5 mm (0.2 inches) of curl.
20 Chapter 2 Printing tasks ENWW
(36-42 lb) cardstock should have a smoothness rating of
2
(16-36 lb) cardstock should have a smoothness rating of
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