color print problem (CMYK converted to RGB)

I just got a call from the printer who wanted to let me know that all the color images in our books were somehow converted from C4 (CMYK) to RGB. They caught this much later than it should have been, but it was caught and they were able to swap out the plates. Here are the steps that were

color print problem (CMYK converted to RGB)

I just got a call from the printer who wanted to let me know that all the color images in our books were somehow converted from C4 (CMYK) to RGB. They caught this much later than it should have been, but it was caught and they were able to swap out the plates. Here are the steps that were

color print problem (CMYK converted to RGB)

I just got a call from the printer who wanted to let me know that all the color images in our books were somehow converted from C4 (CMYK) to RGB. They caught this much later than it should have been, but it was caught and they were able to swap out the plates. Here are the steps that were