Sun Chemical Ink (GPI) has introduced three new, copyrighted pressroom troubleshooting guides that put technical assistance right at your fingertips.      Sun Chemical’s new guides for paper packaging, energy curable inks and energy curable coatings provide excellent resources for correcting all types of printing problems that might arise in production. In an industry first, these practical guides use photographs to clearly illustrate each defect.      Beginning in late January 2002, Sun Ch...