I have been lucky enough to not encounter any block colour related issued sublimating photographic images onto mugs. However, I have been given a job that has blocks of red in the vector image. I have gone through 10 plus mugs using different tweaks in the image, driver settings, etc, but constantly produce a variety of pinks :-( and I'm now run out of options as well as mugs. I've exhausted forums, manufacturer/vendor settings and guidance without success :-(
My configuration:
All drivers are the latest to the OS, Sawgrass & Ricoh.
OS: WINDOWS 7
SCREEN CALIBRATED: YES
SOFTWARE: PHOTOSHOP CS5INKS: SAWGRASS SUBLIJET-R (LESS THAN 3 MONTHS OLD)
PAPER: SAWGRASS TRUEPIX
MUG: LONGFORTE ULTRA WHITE
PRINTER: GELSPRINTER GX e7700N
COLOUR HANDLING: PRINTER MANAGES COLOUR
RENDERING INTENT: PERCEPTUAL
IMAGES: SRGB
DRIVERS: POWERDRIVER R GXE7700N V3.7.1.2814 WITH UNDERLYING OEM RPCS V4.51
I am using the standard sawgrass procedure for image creation and powerdriver printing. I have also used the PHOTO & VECTOR ICC print process from sawgrass which gives the same results. All other colours appear fine, its just the reds.
I have included an image of my mug, created using the Wikipedia RGB RED values (https://simple.wikipedia.org/wiki/Red) with a variety of core reds that I wanted to reproduce alongside a colour calibration chart and a listawood mug from this years printwear & promotion 2017 show which has the red I desire.