spaces in test draw jv33

[dessmith1962]

hello im new to the forum i run 2 mimaki jv33 for sublimation printing. recently i noticed about 15 random spaces in my number 7 blue channel on the testdraw ,ive cleaned and several nozzlewashes also ive flushed this channel with a syringe & cleaning solution but still the same 15 blank spaces ,i also switched the dampers & still the spaces are in the number 7 channel,we print sportswear and print is good except for an occasional problem with green..any suggestions,thankyou

 

[Vinylman]

I GOOD photo of the test print posted here would help with the diagnosis.
My first guess would be that your print head is getting ready to go bad.

I would try pulling ink through the head from below the docking station.
Do a search here or on the internet for details of how to do this.

 

[SightLine]

Other than a long nozzle soak (filling the capping and set the soak time) there is not a whole lot else you can do. It's not a matter of if, it is a matter of when a head will start going bad. A couple of nozzles out is usually not much to worry about though. Right now my black nozzles are about 15% out. Print quality is still acceptable but with very fine detail I have to slow it down or print at a higher resolution. Just the nature of the beast. I'd try a good hour or longer nozzle soaking and see if that brings some of the missing nozzles back.

 

[dessmith1962]

thanks sounds like a good idea can you tell mewher i could see a video like youtube or how to do this?
des

 

[SightLine]

Attached electrical troubleshooting document you PM'd and left a visitor message in my profile for. I cannot give you guidance on how you use this.