HP LaserJet 4M -- Yipes! Black stripes!

[Heinz Schmitz]

Though that could be an uncorrectable firmware problem, it might also be
that they don't have enough memory. Can you add more?

I had opposed the purchase of HP5, because that one appeared
to me as a home use device rather than for heavy office use, but
reason could not compete with the possible savings.
Then I just had PC Mag in front of me where the flaw was reported,
when a mate entered "Hey, my printer doesn't print." Whereupon
we proved, that the report in PC Mag was correct, indeed .
About ten or so years ago. Sorry, don't rermember more. Ours
were probably dumped.

Regards,
H.