HP (Hewlett-Packard) printer Printer User Manual


 
16 Guidelines for purchasing and using print media
Many envelopes will feed through your HP LaserJet printer without
problems. However, some envelope constructions (as shown in the
figure below) will not feed reliably. Problems can occur when the
envelopes are folded more tightly than normal, causing a thick
leading edge near a corner. Folding inconsistencies at the
manufacturer can cause some envelopes to feed well and others to
jam. Purchase envelopes with the quality and consistency that you
require.
Good construction Bad construction