Lexmark C720 User Manual

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Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

1

 

 

Use recommended media (paper, transparencies, envelopes, card stock and labels) for your printer to avoid printing problems. For detailed information about media characteristics, refer to the Card Stock & Label Guide available on theDrivers CD provided with your printer. Brief guidelines for choosing paper and other media follow.

Paper

Note: Using low quality paper may result in unsatisfactory performance and may degrade print quality.

When printing photographic quality images, use a high quality laser printer paper. We recommend the following paper for optimum results:

Hammermill Laser Print 90 g/m2 (24 lb)

For printing text and typical business graphics, you may find 75 g/m2 (20 lb) paper designed for use with laser printers or photocopiers produces acceptable print quality. Always try a sample of any paper before buying large quantities.

Before loading paper, note the recommended print side identified on the paper package. Load paper with the recommended print side face up in the paper trays. For paper loading instructions, seeLoading paper, card stock, or labels.

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Lexmark C720

Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

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The following papers are not recommended for use with your printer:

Paper with a large cotton content

Paper with a rough or heavily textured surface

Coated papers, such as erasable bond

Preprinted papers manufactured with chemicals that may contaminate the printer

Paper designed for inkjet printers

Deformed or damaged paper

Paper that is wet or has absorbed moisture

Paper that is punched, embossed, or perforated

Multiple-partforms

Synthetic papers

Thermal papers

Recycled paper having a weight less than 75 g/m2 (20 lb)

Preprinted papers such as letterhead must be able to withstand temperatures up to 175°C (347°F) without melting or releasing hazardous emissions. Use inks that are not affected by the resin in toner or the silicone in the fuser. Inks that are oxidation-setoroil-basedshould meet these requirements. Latex inks may melt.

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Lexmark C720

Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

3

 

 

Transparencies

For best results, use the following Lexmark transparencies:

Recommended transparencies

Part number

Size

 

 

12A5590

Letter

 

 

12A5591

A4

 

 

These transparencies are designed to provide optimal print quality. Using other transparencies designed for laser printers may yield unpredictable results and possibly cause damage to your printer.

Transparencies must be able to withstand temperatures of 175°C (347°F) without melting, discoloring, offsetting, or releasing hazardous emissions.

To order transparencies in the U.S., call 1-800-438-2468.In other countries, seeContacts for supplies information for a list of phone numbers or visit www.Lexmark.com on the World Wide web.

Black and white transparencies print at approximately 4 ppm and color transparencies print at approximately 3 ppm. For transparency loading instructions, see Loading transparencies.

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Lexmark C720

Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

4

 

 

Envelopes

You can load up to 10 envelopes in tray 1. Load envelopes with the flap side down with the return address positioned to enter the printer first. Do not load stamped envelopes. Load envelopes only in tray 1. Before loading envelopes, fan the stack to prevent them from sticking together. For envelope loading instructions, see Loading envelopes.

To ensure the best print quality, set Paper Type to Envelope and select the correct envelope size before sending the job to print.

When printing on envelopes:

Try a sample of any envelopes you are considering using before buying large quantities.

Use envelopes made from 90 to 105 g/m2 (24 to 28 lb) bond paper. Donot use envelopes that:

Have excessive curl

Are stuck together

Are damaged in any way

Contain windows, holes, perforations, cutouts, or embossing

Use metal clasps or string ties

Have postage stamps attached

Have any exposed adhesive when the flap is in the sealed or closed position

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Lexmark C720

Media guidelines

5

Printing

Use envelopes that can withstand temperatures of 175°C (347°F) without sealing, excessive curling, wrinkling, or releasing hazardous emissions.

Using color

Adjust the left, and front paper guides to fit the envelope’s width.

Paper handling

Maintenance

Troubleshooting

Administration

Index

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Lexmark C720

Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

6

 

 

Labels

Use only labels designed for laser printers. Use only label sheets that have no gaps between the labels, as shown below. Try a sample of any labels before purchasing a large quantity.

Acceptable labels

Unacceptable labels

 

Labels must be able to withstand temperatures of 175°C (347°F) without melting, discoloring, offsetting, or releasing hazardous emissions. For detailed information on label printing, characteristics, and design, refer to the Card Stock & Label Guide on theDrivers CD.

Feed labels only from tray 1. When printing on labels:

Use only paper labels. Do not use vinyl labels.

Do not print a large number of labels consecutively.

Do not use labels that have adhesive exposed on the sheets.

Do not use labels that have coating or sizing applied to make the labels liquidresistant.

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Lexmark C720

Media guidelines

7

Printing

From the operator panel or from MarkVision, set the Paper Type to Labels.

For label loading instructions, see Loading paper, card stock, or labels.

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

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Lexmark C720

Printing

Using color

Paper handling

Maintenance

Troubleshooting

Administration

Index

Media guidelines

8

 

 

Card stock

Note: Load card stock in tray 1 only. Do not load more than 50 sheets of card stock into tray 1. Loading more than 50 sheets of card stock or using the wrong paper source may cause paper jams or a failure to feed.

You can load a small quantity of heavier paper in tray 1. The properties of the card stock you choose— such as the orientation of the paper fibers, moisture content, thickness, and texture— can affect the print quality.

For optimum results, we recommend using:

Springhill Index Plus 90 lb card stock.

Card stock must be able to withstand temperatures up to 175°C (347°F) without melting or releasing hazardous emissions.

For more information on card stock your printer supports, refer to the Card Stock & Label Guide on theDrivers CD

Always set the Paper Type to Card Stock when printing on heavier paper. The printer then adjusts the fuser temperature and engine speed to ensure the best print quality.

For card stock loading instructions, see Loading paper, card stock, or labels.

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Lexmark C720