pstrwks
New Member
I have had the misfortune of opening one of the rastek printheads (Toshiba CA4).
To cut a long - cooling liquid in the dislodged cable connection area shorting out the print-head - story short.
I opened the print head and found that the ink was destroying the epoxy with which the print-head was assembled.
IMG_20130507_160248-lr.jpg
IMG_20130507_160155.jpg
This can't be right!
I am worried about replacing print-heads into this environment.
Any ideas on what has gone wrong. I have only used EFI supplied inks and cleaning solution? The CA4 Toshiba heads are used by a number of Flatbed UV printers. do they have this issue too?
I pressure tested both sides of the problem ie. the coolant water and ink line, and neither appear to be leaking "aggressively". I have inspected 3 heads all with the same problem. 1 was the blown head(shorted out), the second was a faulty head that I had kept on ice hoping to revive it. and the last was the white print-head The White ink head is not 100% but I considered it to be in working order. I have not had the courage to inspect the other heads.
I'm keen to know if anyone else had discovered this problem.
To cut a long - cooling liquid in the dislodged cable connection area shorting out the print-head - story short.
I opened the print head and found that the ink was destroying the epoxy with which the print-head was assembled.
IMG_20130507_160248-lr.jpg
IMG_20130507_160155.jpg
This can't be right!
I am worried about replacing print-heads into this environment.
Any ideas on what has gone wrong. I have only used EFI supplied inks and cleaning solution? The CA4 Toshiba heads are used by a number of Flatbed UV printers. do they have this issue too?
I pressure tested both sides of the problem ie. the coolant water and ink line, and neither appear to be leaking "aggressively". I have inspected 3 heads all with the same problem. 1 was the blown head(shorted out), the second was a faulty head that I had kept on ice hoping to revive it. and the last was the white print-head The White ink head is not 100% but I considered it to be in working order. I have not had the courage to inspect the other heads.
I'm keen to know if anyone else had discovered this problem.