DSF

Hi
I'm using Ricoh SG3110Dn with Sawgrass Sublijet R inks printing on Jet stream paper,Coasters and Mouse mats come out perfect but when using the same design on our mugs the black is coming out brown and striped. The other colours are fine, We have tried different temps and times and pressure but still can not get a true black, Any advice would be appreciated

What times/temps?
I would say drop both the time and temp....

We have tried between 170 & 200 degrees and done the times between 180 and 145 and still not getting a black, its just a muddy brown

Just try 170 temp and 120 seconds see if that helps any.... (What press are you using?) drop a picture up of a pressed mug..

Thats the press we use and the mug we are playing around with, the darker line might look black but its brown. but it is darker than we have had before.