Question Mutoh 1204 Not Pulling Ink

[ssims21]

Was just given a Mutoh 1204, I’ve tried doing a few print head cleanings, but no ink is moving through the lines(the lines are currently empty) how would I go about diagnosing the problem and trying to get it fixed?

 

[netsol]

https://www.amazon.com/Vacuum-Tester-Bleeder-Automotive-Adapters/dp/B073CNGMRG/ref=sr_1_3_sspa?crid=2QJF62FGNM1XP&keywords=Brake+bleeder&qid=1653039168&sprefix=brake+bleeder,aps,174&sr=8-3-spons&psc=1

 

[netsol]

Then go to solventinkjet.com and buy the tapered syringes (they seal on any size tubing)

 

[ssims21]

https://www.amazon.com/Vacuum-Tester-Bleeder-Automotive-Adapters/dp/B073CNGMRG/ref=sr_1_3_sspa?crid=2QJF62FGNM1XP&keywords=Brake+bleeder&qid=1653039168&sprefix=brake+bleeder,aps,174&sr=8-3-spons&psc=1

Logic is telling me I would attach this to the end of the line where the ink bags go, to see if I’m getting get fit on the capping station, is that correct?

 

[netsol]

i am not looking at a mutoh,

but

on our rolands,there are hoses off the captops (the piece that comes up to meet the head) and you remove the hose at the bottom where it goes to a pump, and pull ink through until it fills the damper, passes through the head, then the captop and fills the syringe .

rinse the syringe, if you prefer, and do the next color

 

[rambo555]

i am not looking at a mutoh,

but

on our rolands,there are hoses off the captops (the piece that comes up to meet the head) and you remove the hose at the bottom where it goes to a pump, and pull ink through until it fills the damper, passes through the head, then the captop and fills the syringe .

rinse the syringe, if you prefer, and do the next color

I am wondering if on a Mutoh, that would be the 2 hoses below the maint station.

 

[Solventinkjet]

I am wondering if on a Mutoh, that would be the 2 hoses below the maint station.

That's correct. You just have to clog one of the tubes or pull from both at the same time or else you'll just pull air.

 

[rambo555]

ssims21
Here is the location of the 2 tubes below the Maintenance Station on the VJ-1204. You will need to remove the Waste bin and then you can see the 2 tubes. It's a pain to get large hands in this area, but it is doable.

 

[ssims21]

That's correct. You just have to clog one of the tubes or pull from both at the same time or else you'll just pull air.

I just tested it with a vacuum pump. and I can hear air leaking from what sounds like the where the captop & print head meet, I shouldn't hear anything if there is proper sealing, correct?

 

[ssims21]

ssims21
Here is the location of the 2 tubes below the Maintenance Station on the VJ-1204. You will need to remove the Waste bin and then you can see the 2 tubes. It's a pain to get large hands in this area, but it is doable.

I connected a vacuum pump to the 2 hoses and tested the seal, I could definitely hear air coming from what sounded like the capping station...