Recurrent problem with Roland VS-300, nozzles go missing when doing cleaning. Come back after head soak... HELP!

[damonCA21]

Thanks for the tips, someone also mentioned that it looks like de-laminating and to try with a syringe to put solution through the head. If it comes out on the side then its de-lamination. I have been using aftermarket cleaning solution and apparently its not good for the head. I just ordered a bottle of ESL5 to use with the new print head in the future.

Thats great regarding the replacement, so just need to remove the cover with dampers which shouldn't really leak. Then replace the head and put those back. I didnt know there was an actual physical adjustment on the head, I thought it was just screws on it that can go only one way and the rest was printer calibration in the settings and making sure to check my flushing adjustment. Any tips on how to position it in there?

Since you are a roland dealer tech maybe you can answer that. I am purchasing the new head from a Roland authorized dealer. I was asking about the warranty on it as I have read in the past that sometimes they can have issues out of the box. They told me the 90 days warranty for Roland only applies if their own tech do the installation and register the head for warranty. Meaning that even if I would hire a certified tech from another company, the warranty on the head wouldn't be honored. Is that normal in the business or something I should be worried? Im not sure how common it is to get a defective head but sounds like I would be shit out of luck if that happens.

If you are getting the head from a Roland dealer then it is very unlikely to be defective. There are other companies that sell them like Digiprint who get seconds and they often have problems.
It is common in most industries though that if you don't use their officially recognised techs to install the part then the warranty doesn't apply. Particularly with heads there are so many ways non qualified people can mess them up when fitting them, they can't be expected to honour warranties.

 

[psychopat]

If you are getting the head from a Roland dealer then it is very unlikely to be defective. There are other companies that sell them like Digiprint who get seconds and they often have problems.
It is common in most industries though that if you don't use their officially recognised techs to install the part then the warranty doesn't apply. Particularly with heads there are so many ways non qualified people can mess them up when fitting them, they can't be expected to honour warranties.

Thanks for the info, good to know.

Just to see I got a quote for the installation from their own tech and since they do not have any, one has to travel from Montreal. For the work + travel charges etc, comes to almost 1500 additional.
Im already in for close to 5K with the previous oem parts + new head etc. Seems already like quite a money pit for an old printer that isnt worth much even on the used market.
So I will probably go ahead with the replacement myself, other than the adjustments after I was pretty much 3 screws away.

I see what you previously mentioned about the bias, its under the head alignment section in the service manual.
I also noticed for installing the head, they specify a torque driver model that has a 3% accuracy and the torque amount on the head screws.

I was wondering how crucial is the accuracy? I was looking at buying a FIRSTINFO precision torque screwdriver with a 6% accuracy (https://www.amazon.ca/gp/product/B00XV8GVQK/ref=ox_sc_act_title_1?smid=ALG9VSBC5I2EQ&th=1)
6kgt-cm equals to 0.588399 newton meter. So setting it at 6 NM would probably do the trick?

I always been using OEM parts and OEM ink, however I was using aftermarket cleaning solution in the past. I was told often they contain different chemicals that can actually damage the head internally or de laminate it. To always only use the Roland ESL5 cleaning solution which is safe to use, even if head soaks etc. are required at some point. Is that accurate? I ordered a bottle with the new head.

thanks again for the valuable information.

 

[damonCA21]

With all the many heads I have replaced in the past, I have never torqued the screws to hold them. As long as they are normally tight then they are fine

 

[damonCA21]

And yes, always use a cleaning solution that matches whatever ink you are using. It may be fine, but is a lot safer to use the same thing so you know it won't cause any issues