Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Ed Mathews"
<ed@l...> wrote:
> New development.  Turns out that my "clog" seems to unclog itself over
> time.  If I let the printer set for an hour or so, it prints the test
> pattern fine, and makes a couple of good prints.

This part is normal. Most folks wait for minimum 6 hours or so, windex
on pad for extra credit.


  But after printing a
> few sheets it then clogs again and cleaning just seems to make it worse.
> If I then let it sit, it gets better again.  Is this typical clog
> behavior?


I don't know what setup you have. Are you using carts or a CIS/ CFS?
How old is the printer and how old is the ink?

If you clean more than 2 or three times, yes more lines disapear that
is typical. So don't overclean. Give it a rest.

Please also look very carefully at the parking pad. Send the head to
the left and get a good light in there. Gently push with your finger
to make sure that both springs are exerting pressure upward at back
and front middle of pad. Then, very important, get a foam swab and
clean the perimeter of the pad (it's rubber) with windex or 40%
ethanol to 60% distilled water. If the perimeter is not sealed well
but gunked with ink it will keep drying up the head on you. And make
sure that the pad (looks like a tiny ink stamp pad) is there, not
dried up, displaced, etc.

Be sure the carts are firmly seated if a CIS, air can get in.


I found as a general rule if the missing lines are always in the same
place it is a clog. If the lines in the pattern jump around with
suceeding nozzle checks it is more likely air. Letting it sit for
awhile brings the air to the surface and clears it, but if it's a clog
it is less likely to help. Overcleaning may suck out too much ink, and
introduce air bubbles. My theory anyway.

<In general anyway>
Jim H.
 
> 
> Thanks,
> Ed
> http://lightandsilver.com