The digital scanning printing process should not cause the bleeding of colors you mention, regardless of the brand of printer. However, I have seen some films that exhibit this, and of course the print process would show this. You don't say what films you are using..and then of course, there is the issue of how well the chemical processing lines for the films are maintained at the labs you use.
The issue of a "different color cast each time you have a print made" is an example of poor system control, and inadequate operator skill. Do you provide a sample to match to, when you have reprints made? This is the only way to get a critical match. Most operators only look to get a good skin tone. There is no "standard" balance, and each and every color film needs a different balance, or "channel" on the printer.