In reading this thread, I want to comment that RISO ComColor full-color inkjet printers can print on envelopes sizes #10 and up to 10x13 well. The color is consistent from day to day, it prints variable data in a single pass workflow, and because it is heatless (inkjet), it prints on (the paper portion of) windowed envelopes plus paper stocks up to 210# index. ComColor does not print on coated stocks because the ink needs to absorb into the stock. However, there is never an issue with fading, pealing and cracking, etc. The CPC mentioned earlier of $0.5 cents is accurate assuming a #10 envelope with color logo-return address area and standard black variable-data addressing. Finally because the inks are oil-based, the colors do not run when wet.
The HC5500 is the older model of RISO inkjet, uses the same inks and also does a good job printing on standard and windowed envelopes. The $40k price mentioned earlier is far too high for today's street price on either ComColor or the HC5500.
The HC5500 is the older model of RISO inkjet, uses the same inks and also does a good job printing on standrd and windowed envelopes. The $40k price mentioned earlier is far too high for today's street price on ComColor or the HC5500.