joeycason

haha... i know your problem... i'm facing the same problem as well last time...

SOLUTIONS
Photoshop converts all blacks in grayscale or RGB to rich black based on your colour profile. You can fine tune that amount using a custom CMYK setting. Edit > Convert to Profile, click Custom CMYK, then play with GCR/UCR and Black Generation.

But Photoshop assumes it is working with photos, not precisely defined graphics, so RGB black (0,0,0) won't be converted to rich black, but to a more photographic black that's appropriate to the image as a photograph. In almost all cases, that's a good thing.

Way to adjust
Under Edit -> Color Settings, you need to create a custom CMYK space, and change Black Generation to Maximum. That will make the default black 100K.

I stand by the part where I said it'll cause bad things, though!!!