my jv3 is not pulling ink to heads

[stillmobinya]

i just replaced 2 new heads and dampers. oen head is pumping ink and running although i see air in the tube, the other is not pulling ink 1nto the line from the cartidge. I tried soaking the heads multiple times as well as ink fills. The cyan line is not pulling ink through the line, i tried sucking the line through the damper and the line and neither has enough pull to get ink through the line. i didnt prime the damper, do you think this matters? My black head stopped pulling ink as well and i didnt touch that head besides pulling the ribbons off. does anyone have any idea what could be wrong? the connections seem tight, i checked multiple time and the pumps seems to be working, i can do disway washes and the capping station holds and sucks the cleaing solution. Any help would be appricated.

 

[OmegaAdv]

i just replaced 2 new heads and dampers. oen head is pumping ink and running although i see air in the tube, the other is not pulling ink 1nto the line from the cartidge. I tried soaking the heads multiple times as well as ink fills. The cyan line is not pulling ink through the line, i tried sucking the line through the damper and the line and neither has enough pull to get ink through the line. i didnt prime the damper, do you think this matters? My black head stopped pulling ink as well and i didnt touch that head besides pulling the ribbons off. does anyone have any idea what could be wrong? the connections seem tight, i checked multiple time and the pumps seems to be working, i can do disway washes and the capping station holds and sucks the cleaing solution. Any help would be appricated.

Are you with original ink cassets or with thirt party and you refill it by yourself?

First try that, disconect the line where it fit to damper, whit big syringe pull it to the end, if it make vacuum, at that time get out the cassete, and you will hear a sound that it releace the vacuum. Wash the casette with clening solution and recharge. Otherwise if you don't release the vacuum, somewhere else you have leaking or clogged line! And also if you get ink -> you have bad dumper!

I have it on my black with third party inks, when Ive clean the cassete everythings is ok till now.

Bye

 

[MikePro]

access the drain lines above your ink pumps, from the back of the machine, and draw ink with a syringe (SLOWLY!!!) while the printheads are parked on the capping station. also, while you're back there, swap the lines between the "working" colors and "non-working" ones, and run a fillupink, to confirm that your pumps are working as they should. (the pumps tend to destroy themselves over time, due to the nature of the mechanism rolling/squeezing plastic tubes over and over and over again for years of operation. i mean, the pump usually still works but the plastic line rots/splits.)


while drawing ink through printhead/capping station:
if there's hissing below the printhead, then its your capping station not making a proper seal. (usually you can simply lift-up on the captops and get them to loosen-upward slightly, and the printheads will press into them more snug when parked on capping station)

if there's hissing above the printhead, then you most likely have a cracked manifold. (the black plastic tip on top of the printhead that the damper inserts-into, $45 replacement part from ebay)

if there's air bubbles in your ink lines, get them out. by either fillupink or simply drawing with a syringe from damper.

my money's on cracked manifold. any fiddling with the damper, like most DIY printhead replacement includes, runs easy risk of breaking the fine plastic tip that inserts into the damper.

 

[stillmobinya]

Thanks for your replies. I have the bulk ink feeders connected to my jv3 250.. there was a clog from the bulk feeder to the heads. I managed to get that flowing and fixed my cyan but my yellow was still only printing half the head. I ended up taking that apart and found the nozzle that the damper connects into broke while I was messing with it. Got the new part in and I'm finally up and running. If anyone has this problem in the future and uses the bulk ink uiss units check that first, it will save you time and money as I learned the hard way.

 

[jfiscus]

Park the heads on the capping station, disconnect the ink lines from the pump, and apply suction to the lines with a syringe or brake bleeder hand-pump to get ink flowing through the lines.