Mutoh 1604 Cyan leak back

[heyskull]

The Cyan on my old 1604 is leaking back on one of the cyan channels.
Will this be a damper/O ring problem or do I have other issues?
Maintenance station is about 2 months old and I have no other problems with colours except one of the cyan channels.

Thanks
SC

 

[heyskull]

Can anyone confirm this is a damper problem?

 

[Pitzu]

Usually it's a damper problem. If you have any doubt, you can swap the dampers.

 

[Solventinkjet]

Yes it's usually the damper. If you think about it like this it makes sense: Remember when you were a kid and you would put a straw into a cup of water and the put your finger on the top of the straw and you could lift the straw out of the water and the straw would hold the water seemingly against gravity? When a damper fails it's like taking your finger off the straw except the ink cartridge pulls back on the system which is why the ink always goes back to the cartridge when the damper fails.

 

[henryp]

If you are getting pockets of air on the cyan ink lines, fault is most likely an air leak