Lexmark MX6500e User's Guide - Page 90

Paper and specialty media guidelines 90 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/m2 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/m2 (16 lb) • Multiple part forms or documents For more information about Lexmark, visit www.lexmark.com. General sustainability-related information can be found at the Environmental Sustainability link. Storing paper Use these paper storage guidelines to help avoid jams and uneven print quality: • For best results, store paper where the temperature is 21°C (70°F) and the relative humidity is 40 percent. Most label manufacturers recommend printing in a temperature range of 18-24°C (65-75°F) with relative humidity between 40 and 60 percent. • Store paper in cartons, on a pallet or shelf, rather than on the floor. • Store individual packages on a flat surface.