I have an HP Laserjet 4100n with duplexer and envelope tray that I've owned since new, and after moving it from my office to my home office, it just keeps running. It has light use (under 300 pages month average), and was serviced by a local technician a few years ago when rollers and perhaps more were replaced.

I am looking for a brand/model No. of high-quality envelopes that experience shows they do not crease when run through the printer. My 24lb. 25% cotton business correspondence envelopes have been creasing on the "tail end" as they exit the fuser (see below). Maybe I should iron my better envelopes flat before loading them in the printer's envelope tray.

Is there a current equivalent on the market to this 4100n (i.e., a network laser printer with duplexer and envelope tray)?

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