Major dropout AFTER head cleaning.

[IsItFasst]

I have this problem almost every time I resort to head cleaning. Not sure why? I had a little bit of dropout on my black test print so I did a "cleaning". After, ALL my colors have MAJOR dropout after the clean even though CYM were all perfect before the clean. I have noticed this problem for as long as I can remember. Normally I have to waste tons of time and ink to get everything to come back to normal.

 

[IsItFasst]

Notice that there is very little dropout before the cleaning.

 

[IsItFasst]

Did overnight head soak, pulled ink through manually and things are back to normal. Still not sure why doing a cleaning almost always causes this problem. At least it's back up an running....

 

[Jack Knight1979]

I am currently going through this problem right now as I type this.

Happens to me every fall and spring. I believe it has to do something with atmospheric pressure. I have an open tank bulk system, so it can be a pain in the butt.

You won't have this problem in a couple days.

 

[sfr table hockey]

Always make sure your pump lines are clear when you get drop out and not recharging after cleaning. Think of it this way, the cleaning cycle does a vibrating sort of thing to the heads while cleaning and then the pump sucks the ink out and recharges as it does so. If the drain lines are plugged then the pump goes through the motions but does nothing to charge the heads. Meanwhile the vibrating of the heads had dropped out much of what was in there for ink. So now there is less ink in the head and a worse test print.

If you can manually draw ink with a syringe then you know the caps and seal is fine. Most likely the drain lines.

If the pump ever gets a crack in the tube line, most pumps you can thread new tube through it by opeing it up.