HP Color LaserJet Pro M452 Print Media Guide - Page 21

Summary of HP envelope testing

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● Do not use envelopes that have clasps, snaps, tie strings, transparent windows, holes, perforations, or cutouts. ● Do not use envelopes that have any adhesive surfaces exposed to the printer. ● Envelopes with woven or smooth finishes ensure good toner adhesion. ● Protect envelopes in humid environments. High moisture content can cause some envelopes to seal shut due to elevated temperatures when steam is released during fusing. Many envelopes will feed through your HP LaserJet printer without problems. However, some envelope constructions (as shown in the following illustration) might not feed reliably. Problems can occur when the envelopes are folded more tightly than normal, which creates a thick leading edge near a corner. Inconsistencies in folding during manufacturing can cause some envelopes to feed well and others to jam. Purchase envelopes that have the quality and consistency that you require. NOTE: For optimal print quality, make sure the paper type is set to envelope. Figure 2-2 Examples of good and bad envelope construction Good construction Bad construction 1 2 inconsistent leading edge 3 1 Diagonal-seam envelope 2 Double-sided seam envelope 3 Manila envelope Summary of HP envelope testing HP tests many types of envelopes to determine which ones print acceptably in an HP LaserJet printer. This is a summary of the test results. ENWW Using print media 15

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●
Do not use envelopes that have clasps, snaps, tie strings, transparent windows, holes, perforations, or
cutouts.
●
Do not use envelopes that have any adhesive surfaces exposed to the printer.
●
Envelopes with woven or smooth finishes ensure good toner adhesion.
●
Protect envelopes in humid environments. High moisture content can cause some envelopes to seal shut
due to elevated temperatures when steam is released during fusing.
Many envelopes will feed through your HP LaserJet printer without problems. However, some envelope
constructions (as shown in the following illustration) might not feed reliably. Problems can occur when the
envelopes are folded more tightly than normal, which creates a thick leading edge near a corner. Inconsistencies
in folding during manufacturing can cause some envelopes to feed well and others to jam. Purchase envelopes
that have the quality and consistency that you require.
NOTE:
For optimal print quality, make sure the paper type is set to envelope.
Figure 2-2
Examples of good and bad envelope construction
1
2
3
Good construction
Bad construction
1
2
3
Diagonal-seam envelope
Double-sided seam envelope
Manila envelope
inconsistent
leading edge
Summary of HP envelope testing
HP tests many types of envelopes to determine which ones print acceptably in an HP LaserJet printer. This is a
summary of the test results.
ENWW
Using print media
15