hp640c: is there any way to use this printer without colour cartridge?

B

borowiec

hello
is it possible to print black&white documents when colour cartridge is
absent?
hp 640c printer?
 
W

Wolf Kirchmeir

On Mon, 7 Jul 2003 15:05:20 +0200, borowiec wrote:

=>hello
=>is it possible to print black&white documents when colour cartridge is
=>absent?
=>hp 640c printer?
=>

Have you tried using an empty cartridge?
 
B

borowiec

the problem is: i've got to not quite empty (it makes me nervous) but with
electricall failures (the printes can't see them) colour cartriges. I don't
know why especially colour (they are more expecive, perhaps ;) ) cartridges
cause such problem often.
I print colour documents occasionaly and without electrically ok colour
cartridge I can't print at all.

So the quastion is is there some tricky way to make printer working without
colour cartridge?

Is the anybody who got cartridge pinout description, maybe it is posible to
do some el. curcit (baseing on an old cartridge) to make printer see it as
the the good one.

Thanks
 
T

tomcas

I don't think it's that complicated. In less I'm mistaken the 640 is not
chipped. When you open the clamp and take the cartridge out and then
reinsert it, the level detection will automatically reset. This is why
you should never remove the cartridge unless you are replacing it.
Resetting a partially filled cartridge as full is bound to cause you to
eventually forget and end up running dry. Plugged nozzles and trapped
air can be a real pain and sometimes fatal on Epsons. As a temporary
measure I suppose you could reset the color, set your print defaults to
black only, and wear a rubber band around your finger till you get a
replacement color cartridge. The generic cartridges are so freaking
cheap for this printer you should buy at least a half dozen to keep on hand.
 

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