- nozzle check output review (suspect dried ink under head or in some jets?) treat the capping station pad with 100% cleaner and let printer sit for up to 1 hour. power up normally and recheck nozzles, any difference?
- swap delivery original delivery system with new carts OR our printhead cleaning carts as a delivery system and recheck nozzles (don’t forget to pre-prime system). any difference?
- remove some inks from the channel(s) with the problem and introduce at least a 50-80% solution of pure printhead cleaner. Download Color Priming Test Charts from our website and reference the HowToTest video on how to print them. Print up to 3 single page charts of affected color(s) per HowToTest video and then retreat the capping pad and park head for another hour unplugged
- Restart the printer and recheck nozzles and see if any differences. same output as previous? move to more advanced procedure or if differences? maybe continue on with more of step 3) if progress is seen.
- Most advanced procedure is suctioning (yes suctioning of head) and is shown in the video below. We would never recommend pushing through the head except in an extreme situation and especially never unless suctioning of the head was not accomplished FIRST before any pressurization of the head.
- Most likely a combination and repeated attempt or a prolonged lapse / rest / soaking of the head during one or ALL of these steps might be required depending on the severity of the problem or the length of time the events has transpired over.
http://www.juexiang.comin-china.com/catalogs/70/inkjet_printhead.html
