Bad magenta?

[roxym]

I'm having a very frustrating problem with my normally dependable Mutoh Valuejet 1304. Yesterday I was printing 3 banners, all the same. The first two went fine, 3" into the third the print suddenly changed colors, went from a brownish color to a green tint, just like you drew a line. I had replaced the yellow and magenta carts during the first banner. I did a few cleanings, checked the drain lines and then started printing test blocks of CMYK. Everything looked fine except the magenta. The print quality is great, the only problem is the magenta is way too light. I don't have another magenta cartridge to try, do you suppose it's a bad cart of this color?

Not sure what else to check, any ideas? Thanks!!

 

[Jeff South Florida]

look at the tubes going in to the head. Is there 2 of each color. Did you do a nozzle check. Make sure both sets of magenta are printing.

 

[roxym]

Thanks, I now see only one magenta head is printing. My supplier is telling me a new maintenance station????? Can you replace just the pump on a 1304? This is getting to sound expensive....

 

[Robert M]

Pump

It may not be the pump, it could just be the cap top, the part that seals against the head when it is parked, when it goes out air leaks in and the pump will not draw down the ink. Make sure it is clean and free of built up ink. If the pump is pulling ink down you will see it going into the waste bottle. I have both parts if you need them.

 

[Jeff South Florida]

I would second the cap first theory. Mostly because it is the magenta. It is at the end of the cap and is usually the first to go.

 

[roxym]

Thanks to all for the help.

 

[SE SignSupply]

I have the ValueJet cap top in-stock if you need one, $89.00 shipped.

Ryan