🚀 go-pugleaf

>I have a user who wants to print large quantities of envelopes on a
>LaserWriter.  All attempts to date have failed because of innummerable paper
>jams at the paper intake stage (in fact they are not real jams as the
>envelope doesnt enter the printer).

I have found that it requires a slight push on the envelope to get it to
begin feeding. Since the LW makes some clicks before single-sheet feeding,
you have some warning before you need to begin pushing. A very gentle push
is all that is required, but it seems to need that extra tension to begin
feeding. Apply the tension in the direction the envelope will travel.

Amusing anecdote time. It's related, but not necessary to solve your problem.
I purchased my LW+ used. It worked fine, but when I started to run envelopes
through it it would jam repeatedly. Frustrating. Finally, a couple of days
later I happened to pull down the access door to the sheet feed mechanism,
which is just below the manual feed tray. Jammed inside was a sheet of VERY
heavy paper, lining the outside of the curved paper path! It fed OK, amazingly
enough, but it was a leftover jam when the previous owner tried to auto-feed
too-heavy stock. Clearing out this cardboard sheet not only made auto sheet
feeding quieter (!), but it solved the envelope jamming problem too.

But I still have to put tension on the envelope to get it to feed. :-(

-- 
-Brian Diehm
Tektronix, Inc.                (503) 627-3437         briand@tekig4.LEN.TEK.COM
P.O. Box 500, M/S 39-383
Beaverton, OR   97077                        (SDA - Standard Disclaimers Apply)