HP (Hewlett-Packard) LJ 4000T Printer User Manual


 
170 Chapter 6 Toner cartridge information EN
Transfer of toner image (continued)
Because of the way that laser printing is accomplished, currently there
is no way to entirely eliminate the possibility of toner transfer. However,
using these techniques should yield more satisfactory results and will
often reduce the problem to imperceptible levels.
Gray background on envelopes
Poor print quality is normally the result of using envelopes that are of
the incorrect weight or finish. The paper used to construct the envelope
might be embossed; or might be too heavy, too rough or too slick; or
might be made in such a way that it is incompatible with the high
temperatures encountered in toner fusing. The result is that the toner
does not adhere well to the surface. Also, on heavier envelopes, a gray
background might appear on the front (or print side) of the envelope. To
reduce the gray background, the print density might need to be set to a
darker setting.