Duplex adapter for HP LaserJet 4[M] Plus: user experience?

Archived from groups: comp.periphs.printers (More info?)

My HP LaserJet 4M Plus is ancient, but it still works well and I'm happy
with it except that I'd like to be able to do duplex printing.

I see that I can get a duplex printing attachment for the printer on eBay
for about $120, including shipping. That looks like a much better deal than
$1500 or so for a new printer with duplex capability built in.

My question: how robust are these gadgets? If I buy one in good condition
and treat it well, is it going to last as long as my printer, or is it
likely to need an adjustment in a few months that would cost more than it's
worth?

Archived from groups: comp.periphs.printers (More info?)

"Jonathan Sachs" <llm040903@earthlink.net> writes:
> I see that I can get a duplex printing attachment for the printer on eBay
> for about $120, including shipping. That looks like a much better deal than
> $1500 or so for a new printer with duplex capability built in.

You can get a used HP duplex printer for $300 or less. You can get a
new HP 2300D for $600 or so and it's around a 20 ppm printer with a
266 mhz processor, way faster than the 4M. There are some even less
expensive duplex printers from Minolta and others, but I'm not
familiar with specific models. I bought a used HP 2200D for $300 and
I'd say it's less heavy-duty than a 4M, but it's much smaller and for
my light-duty usage, it's great.