DC12 speed on thicker papers/boards

[GusG]

Hi. Can anyone tell me how much a Xerox DC12 reduces in speed from the rated 12 pages per minute when printing colour on harder paper/board. For instance, what would the speed be on 135gsm, 200gsm and 250gsm.
Thanks in advance.

[davidj7]

100 prints continuous takes 1 hour on 200-250a gsm 12x18