I still have the CX-VDO that I built (after much
hacking) from a
defective LBP8A1. I have the laser printer interface in my PERQ which
drives this printer (and almsot noting else). Alas CX toner cartridges
are unobtainable now.
Try cartridges for the copier CANON PC-1. If you don't find and need
some, drop me a mail that I maybe can find some here.
I was under the impression (due to somebody who I fixed a PC-1 for and
who also had a CX-engined printer) that the cartridges were different.
While they will mechancially interchange, they don't work in the 'wrong'
machine.
Photocopiers and laser printers, while similar on concept differ a lot in
the details. There are 2 very obvious differences that might matter here.
Firstly, the laser printer uses an IR laser beam to put an image o nthe
drum, tbe photocopier uses visible light reflected from the original. I
could well believe that the drum coatings are different as a result.
Secondly, all photocopiers (for obvious reasons) are 'write for white'.
That is, the toner stickes to the unexposed parts of the drum -- the bits
that were black in the original (so no reflected light) and which ened to
be black in the copy. Many laser printers (including the CX) are 'write
for black' -- the toner sticks to the exposed parts of the drum, where
the laser beam has been. This certainly means different polariities of
soem of the EHT corona wires, it may also mean a differnet toner compostion.
-tony
