Color Management Issues with GMG ColorServer

Hello everyone,

Our company relies on GMG Colorserver to ensure consistent color reproduction across our various digital printing machines. However, we have noticed a consistent shift in the printed colors over time, specifically towards a reddish hue, across all our machines. Despite our best efforts to calibrate and fine-tune the color profiles, it appears that GMG Colorserver is somehow introducing this color shift. This issue has persisted across all the machines we've used over the past ten years, such as Konica 6501, Xerox 700, Ricoh C751, as well as our current machines like Iridesse and Fujixerox V80. Over time, the printing results consistently turn increasingly red.

We have reached out to the software provider of GMG and the engineers responsible for our printing machines to help us solve this problem. However, despite several years having passed, the issue remains unresolved. We are curious to know if anyone else has encountered a similar situation with GMG Colorserver. If so, how did you address it? Are there any steps that you would recommend? Your insights and suggestions would be greatly appreciated. Thank you in advance.

Tyrus Chen
Interprint Prepress Co., LTD.

 

It's not the GMG software. I can say that much. GMG is the best product I have ever used for color mapping.
Keep in mind you'll have to map your digital presses to the weakest link in the chain. Wider gamut machines will have to downsize to meet the lower ones.

Also all machines much be at a linearized state, with relatively new imaging parts, before you should even bother profiling or mapping.

The press room also must maintain a stable temperature and humidity throughout the year.
Especially digital laser (dry toner) products shift color with temp and humidity.