mutoh 1204 no black ink

Damper could solve, especially if you can do a cleaning cycle and the black shows when doing a nozzle check then fades away. You mentioned it's been 3 years since a new maint. station was installed, that's a little longer than normal life expectancy on a maint, station. Mutoh recommneds a new one yearly (a bit of over kill), but with 3 years may be time for a new one. Lastly confirm your printhead is level to the platen, if it's not level to platen, then that is the source of air....aka not sealing.

Just my .02

 

GTSTech_1 gave good advice. If you install new dampers, be sure to use new o-rings. If you can see any air bubbles in the black ink line, that tells you that something is not sealing right. And, don't overlook the obvious: is there plenty of ink in the black ink cartridge?

 

I'm afraid I don't really know what this issue is either. I too, use a 1204 and they're great work horses when it comes to printing.

 

You shouldn't be able to see any white in the cap top if the station is working properly. The lines you see are from the head firing into the cap which means those nozzles are firing but the station isn't pulling the ink through like it should which would make sense why the black isn't firing because the station isn't pulling any ink down. I have seen that type of wiper before, which isn't OEM, and it came with a batch of bad maintenance stations we had to send back to the manufacturer. I'm guessing that is the case here or something else is out of wack.

 

when did you hop back in the s101 game?? thought you guys were off the site??

 

Just took a break to let things cool off. Didn't want to cause a bunch of drama which we all love on the forum right?

 

agreed. only wanna talk about signs and printers. not debate politics. thats for reddit