Hello! Another curious problem, maybe someone can help me.
I changed the dampers on the JV34. After the "Damper Discharge" I was supposed to refill the dampers with "Damper Fillup." The left dampers do not fill. I noticed that the ink in the tubes to the left printhead is being drawn out of the dampers. The reason is that the two printheads or the tubes with ink above the dampers for the right and left printheads are connected. Now, the right printhead or the right pump is drawing the ink from the left dampers.I took a closer look. On the capping for the right printhead I can create a certain vacuum at the bottom (at the pump connection) with a syringe. I think that's how it should be. On the left capping, this doesn't work. I just draw air. If I now fill cleaning fluid with the syringe, I can see that between the capping and the printhead at the front left corner the liquid leak.
The capping does not seal with the printhead. The simplest idea was to replace the capping - without success! After that, I replaced everything. Capping again, pump, damper again, damper joint assembly. I also checked and calibrated the capping settings according to the maintenance manual several times. The problem remains the same. If I place a glass plate on the capping, I can create a vacuum. The plate is attracted, so the capping does seal.
How is it possible that the capping suddenly no longer seals with the printhead? The park position of the printhead on the capping also looks fine. The printhead is clean and undamaged. What else can I test or adjust?
I changed the dampers on the JV34. After the "Damper Discharge" I was supposed to refill the dampers with "Damper Fillup." The left dampers do not fill. I noticed that the ink in the tubes to the left printhead is being drawn out of the dampers. The reason is that the two printheads or the tubes with ink above the dampers for the right and left printheads are connected. Now, the right printhead or the right pump is drawing the ink from the left dampers.I took a closer look. On the capping for the right printhead I can create a certain vacuum at the bottom (at the pump connection) with a syringe. I think that's how it should be. On the left capping, this doesn't work. I just draw air. If I now fill cleaning fluid with the syringe, I can see that between the capping and the printhead at the front left corner the liquid leak.
The capping does not seal with the printhead. The simplest idea was to replace the capping - without success! After that, I replaced everything. Capping again, pump, damper again, damper joint assembly. I also checked and calibrated the capping settings according to the maintenance manual several times. The problem remains the same. If I place a glass plate on the capping, I can create a vacuum. The plate is attracted, so the capping does seal.
How is it possible that the capping suddenly no longer seals with the printhead? The park position of the printhead on the capping also looks fine. The printhead is clean and undamaged. What else can I test or adjust?