• Avoid papers with rough or heavily textured surfaces.
Use papers printed with heat‑resistant inks designed for use in xerographic copiers. The ink must be able to withstand
temperatures up to 230°C (446°F) without melting or releasing hazardous emissions. Use inks that are not affected by
the resin in toner. Inks that are oxidation‑set or oil‑based generally meet these requirements; latex inks might not.
When in doubt, contact the paper supplier.
Preprinted papers such as letterhead must be able to withstand temperatures up to 230°C (446°F) without melting or
releasing hazardous emissions.
Using recycled paper and other office papers
As an environmentally conscientious company, Lexmark supports the use of recycled paper produced specifically for
use in laser (electrophotographic) printers.
While no blanket statement can be made that all recycled paper will feed well, Lexmark consistently tests papers that
represent recycled cut size copier papers available on the global market. This scientific testing is conducted with rigor
and discipline. Many factors are taken into consideration both separately and as a whole, including the following:
• Amount of post-consumer waste (Lexmark tests up to 100% post-consumer waste content.)
• Temperature and humidity conditions (Testing chambers simulate climates from all over the world.)
• Moisture content (Business papers should have low moisture: 4–5%.)
• Bending resistance and proper stiffness means optimum feeding through the printer.
• Thickness (impacts how much can be loaded into a tray)
• 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.
Paper and specialty media guide 45
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