OK, looking at the closeups:
A) is most likely EDO from the part number. I'm not sure how big it is, but I'd take a stab at 16 MB.
B) size-maybe 8 MB? assuming it's not double sided. If it is double sided, probably 16.
C) still don't know.
D) still don't know.
E) well, that one's EDO for sure.
One thing I can tell you is that none are ECC.
Oh yeah, they're all really freakin' old.
As far as laser printers go, you'd have to check with the manufacturer, but I don't think there are many out there that are still using this RAM. I could be wrong.
