Bedienungsanleitung Lexmark MX517 (Seite 67 von 325) (Englisch)

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• Surface roughness (measured in Sheffield units, impacts print clarity and how well toner fuses to the paper)

• Surface friction (determines how easily sheets can be separated)

• Grain and formation (impacts curling, which also influences the mechanics of how the paper behaves as it moves

through the printer)

• Brightness and texture (look and feel)

Recycled papers are better than ever; however, the amount of recycled content in a paper affects the degree of control

over foreign matter. And while recycled papers are one good path to printing in an environmentally responsible manner,

they are not perfect. The energy required to de-ink and deal with additives such as colorants and “glue” often generates

more carbon emissions than does normal paper production. However, using recycled papers enables better resource

management overall.

Lexmark concerns itself with the responsible use of paper in general based on life cycle assessments of its products. To

gain a better understanding of the impact of printers on the environment, the company commissioned a number of

life cycle assessments and found that paper was identified as the primary contributor (up to 80%) of carbon emissions

caused throughout the entire life of a device (from design to end-of-life). This is due to the energy-intensive

manufacturing processes required to make paper.

Thus, Lexmark seeks to educate customers and partners on minimizing the impact of paper. Using recycled paper is

one way. Eliminating excessive and unnecessary paper consumption is another. Lexmark is well-equipped to help

customers minimize printing and copying waste. In addition, the company encourages purchasing paper from suppliers

who demonstrate their commitment to sustainable forestry practices.

Lexmark does not endorse specific suppliers, although a converter’s product list for special applications is maintained.

However, the following paper choice guidelines will help alleviate the environmental impact of printing:

1 Minimize paper consumption.

2 Be selective about the origin of wood fiber. Buy from suppliers who carry certifications such as the Forestry

Stewardship Council (FSC) or the Program for the Endorsement of Forest Certification (PEFC). These certifications

guarantee that the paper manufacturer uses wood pulp from forestry operators that employ environmentally and

socially responsible forest management and restoration practices.

3 Choose the most appropriate paper for printing needs: normal 75 or 80 g/m

certified paper, lower weight paper,

or recycled paper.

Unacceptable paper examples

Test results indicate that the following paper types are at risk for use with laser printers:

• Chemically treated papers used to make copies without carbon paper, also known as carbonless papers

• Preprinted papers with chemicals that may contaminate the printer

• Preprinted papers that can be affected by the temperature in the printer fuser

• Preprinted papers that require a registration (the precise location on the page) greater than ± 2.3 mm (± 0.9 in.),

such as optical character recognition (OCR) forms. In some cases, registration can be adjusted with a software

application to successfully print on these forms.)

• Coated papers (erasable bond), synthetic papers, thermal papers

• Rough-edged, rough or heavily textured surface papers or curled papers

• Recycled papers that fail EN12281:2002 (European testing)

• Paper weighing less than 60 g/m

(16 lb)

• Multiple part forms or documents

Paper and specialty media guide 67

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Lexmark MX517 Seite 67

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