TA Triumph-Adler LP 4140 - Manual (Page 18)

Handling Paper
1-12 ADVANCED OPERATION GUIDE
Do not use envelopes that have an encapsulated liquid adhesive.
Avoid long printing runs consisting of envelopes only. Extensive envelope
printing can cause premature printer wear. To avoid jamming due to curled
envelopes, do not leave more than approximately 10 printed envelopes
stacked in the paper trays during multiple envelope printing.
Thick Paper
Fan the stack of paper and align the edges before loading them in the MP
tray. Some types of paper have rough edges on the back (those are
created when the paper is cut). In this case, put the paper on a flat place
and rub the edges once or twice with, for example, a ruler to smooth them.
Feeding rough edged paper may cause paper jams.
NOTE: If the paper jams even after you smooth it out, load the paper in
the MP Tray with the leading edge raised up a few millimeters.
Colored Paper
Colored paper should satisfy the same conditions as white bond paper,
listed in Paper Specifications on page 1-3. In addition, the pigments used
in the paper must be able to withstand the heat of fusing during the printing
process (up to 200 °C or 392 °F).
Preprinted Paper
Preprinted paper should have a bond paper base. The preprinted ink must
be able to withstand the heat of fusing during the printing process, and
must not be affected by silicone oil.
Do not use paper with any kind of surface treatment, such as the type of
paper commonly used for calendars.
Recycled Paper
Select recycled paper that meets the same specifications as the white
bond paper (refer to Paper Specifications on page 1-3) except whiteness.
NOTE: Before purchasing recycled paper, test a sample on the printer
and check that the print quality is satisfactory.