ive got 2nd hand deffective 4990, but there is just 4 noozle in cyan, and the rest of 9 colors are blank
i already disassmble the head, ang manually flash it using the Syringe and i saw the straight and verry good noozle avery colors. .
the problem is, after i assmblke back the head to the printer, it’s still no print out …
can anyone expirience this? or some advice what can i do to fix this??
Thanks in advance