Posted: Fri Jan 04, 2008 3:22 pmaab1 wrote:
Color_Workshop wrote:
Actually the blank ink problem is having to do with that most places sells this Ciss with dye black ink while the ink should be pigment.
It does not happen at all when you run it with correct kind of ink.
At least that is been my experience.
I could not get good black print until this was discovered and changed to pigment black.
/Amin
This is also true, my CIS system had dye black ink and I had this issue, I replaced the in and made several photocopies with the scanner lid open to print whole black pages to pump that junk out of the system, it's now running normally.
By the way, I noticed the original HP ink gives me dark pitch black, but even my pigment ink refill isn't as black, have you found a pigment black refill ink that's as black as HP's? Most people would probably swear the original HP black is laser toner since it's such a deep, pitch black.
Posted: Sat Jan 05, 2008 8:09 pmMartin wrote:
aab1 wrote:
I wanted to correct you on one thing though, you say it provides one shot pressure but that's not how it works, they way I figured it works is that each plastic "piston" that comes and press against the black buldge is spring loaded, this does that even though the printer motor pushes the pistons all the way, they will barely move at all and remain under the pressure of the spring. As the printer prints, the black buldge slowly "deflates" causing the piston to move in more and more under the pressure of the spring (against the pressure of the ink in the black buldge holding it back). Those pistons also have sensors, when it detects the piston has moved all the way out, it knows the black buldge is empty and will retract all pistons (allowing the black buldges to refill with ink) and then pushes them all back, applying a constant pressure to all 4 buldges, so there really is a constant pressure. If ever you have an old broken hp printer like these, you can try cutting one of the ink tubes going to the printheads and I'm sure the ink pump will start pumping constantly, as it only stops once the other side is also pressurized, so you'd hear the pistons move back and forth constantly while ink shoots out the tube.
Ah... I see... Ok... well I stand corrected then.. I had assumed (stupid of me) that the bulge part allowed free flow back and forth into the silver bag reservoir part of the cartridge but from what you seem to be saying there's actually a one way valve in there that allows ink to feed in to the bulb but not back into reservoir part.
I'll let you know how I get on 
Posted: Sun Jan 06, 2008 11:11 pmPosted: Thu Jan 10, 2008 6:34 pmaab1 wrote:
Sounds great, I never even opened a cartridge (I opened the print heads though). Could you post pictures of how and where you connect the tube bypassing the ink bag?
Posted: Thu Jan 10, 2008 9:04 pmPosted: Thu Jan 10, 2008 10:36 pmaab1 wrote:
I got the auto reset chips that came with my pre built CIS system, they seem ok but do have an occasional glitch sometimes.
Quote:
I also had the black issue for a few weeks, if you have ink to waste, do 25-100 photocopies with the scanner lid open to print many black pages, this should get the old dye based ink out and get the pigment ink in (this is of course assuming you have replaced the incompatible dye ink with pigment ink). After I printed a few black pages a day for 1-2 weeks, it finally went away. This may be due to incompatible (non pigment) ink in the printhead or air bubbles. If you're sure you're now using compatible ink, you can always replace the printhead, but mine came back to life after a while.
Posted: Fri Jan 11, 2008 12:46 amPosted: Sun Jan 13, 2008 5:32 pmKRKAci wrote:
I bought a CISS from ebay. Installed fine but soon got an error message that it had consumed all the BLK ink that was originally installed ( I never installed the starter cartridges went directly to the CISS). The documentation shows that the reset chip should reset the ink levels but I can not get it to do it even after powering off and back on.
When restarting you do get the not an HP cartridge and it will invalidate your warrenty stuff but there is a new message that says that since this is not a real HP cartridge we will not report ink levels. So even though it does not seem to affect anything it looks like the system will always report the ink levels are unknow.
Has anyone else seen this? Is there a work around ? If I were to guess it is an HP firmware update to discourage anyone from not using an HP cartridge and make it a pain for anyone that doesll
Posted: Sun Jan 13, 2008 6:06 pmaab1 wrote:
Sounds great, I never even opened a cartridge (I opened the print heads though). Could you post pictures of how and where you connect the tube bypassing the ink bag?
Posted: Tue Jan 15, 2008 11:47 pm
output generated using printer-friendly topic mod. All times are GMT + 1 Hour