How to remove PRO-1 printhead ?

[Flageborg]

Found this piece of paper after removing the printhead......hmmmmm

 

[stratman]

Says it all.....hmmmm....sure about that?

Yes.

Unless you have an explanation how that piece of paper causes straight line ink dropouts with perfectly split bimodal hues in a single swath. We've seen this many times. This is classic electrical irreparable failure.

We are open to changing paradigms if the data is presented. This would be an exciting addition for members with similar issues to look for in the future if true.

Did you try another nozzle check to test your hypothesis that the scrap paper is the cause?

 

[The Hat]

Says it all.....hmmmm....sure about that? Found this piece of paper after removing the cover....

Positive, the piece of paper doesn’t change anything.. The print head is still Fecked..
Speed on Brother, Hell ain’t half full…

 

[Flageborg]

Did you try another nozzle check to test your hypothesis that the scrap paper is the cause?

No.....still moving slow to check everything in detail and do some thorough cleaning of internal parts before re-assembling.

 

[Flageborg]

Positive, the piece of paper doesn’t change anything.. The print head is still Fecked..

YES.....hope you are right......because feeding this monster with new printhead and complete set of cartridges is money down the drain...

 

[stratman]

do some thorough cleaning of internal parts before re-assembling.

It's a dirty job but someone has to do it.

While you are there, check the timing strip to see if it needs a little cleaning, too. Won't make a difference with the electrical problem but might be good experience for your next printer.

http://downloads.canon.com/cpr/software/mf/MP620_TimingStripCleaning.pdf

 

[Flageborg]

So far so good......and now find some paper to prepare the Nozzle Check.......

 

[Flageborg]

Nozzles did also get a dose of chemicals...

Ink was low when I got it.....and now it is only 1 more Nozzle Check printout, but will let ink use gravity until new test tomorrow.

 

[The Hat]

Nozzles did also get a dose of chemicals...

Cleaning the Pro 1 print head yourself is a waste of time, because the printer can do a far better job itself..

 

[Flageborg]

Cleaning the Pro 1 print head yourself is a waste of time, because the printer can do a far better job itself..

Ok....but I can do better than this