VG Truevis printhead fix

[Joesignshop]

Ive been chasing ink dropout on a VG-640 on 1 printedhead (lt mg/cy) for months. Replacing damper twice and captops. Finally pulled the printhead out and inspected the factory "glued in" grey orings on the top manifold and they were not seating the damper mating surfaces. Over time the o-ring becomes flattened. So instead of buying a new printhead I found some orings that would fit on the inside bottom holes of the damper, making a double seal. It did make the latch on either side slightly more difficult to seat but I believe ensured a tight seal. Its been holding for 2 days now and better than spending a $1000! Attached are the photos for the fix. ☆☆Be careful when separating the damper from the printhead. If you dont evacuate all the ink it creates a mess and can possibly damage the small circuit boards on the sides of the printhead.

 

[netsol]

there is a company that makes a repair kit similar to what you did for the HP designjets.

you might want to consider a piece of absorbent sheet to catch any ink. the ecosol inks are conductive and can do some serious damage to the printer

 

[Joesignshop]

there is a company that makes a repair kit similar to what you did for the HP designjets.

you might want to consider a piece of absorbent sheet to catch any ink. the ecosol inks are conductive and can do some serious damage to the printer

I remove the printhead before separating and evacuate the ink before separating on the bench. Dont know of any repair kits for these Ricoh printheads so far.

 

[netsol]

i was just commenting that they have repair kits for similar issue with the hp's
your idea sounds like you are on the right track, it is what i would do.
can o-rings be removed with a pick?

 

[Joesignshop]

i was just commenting that they have repair kits for similar issue with the hp's
your idea sounds like you are on the right track, it is what i would do.
can o-rings be removed with a pick?

No i think that they are glued in. Very odd the company would do that. I tried to pick it out with no luck so I stopped before doing any damage.