Patent ID: 6259464
Filing Date: 2001-07-10
Classification: B41J

Abstract:
An image-forming substrate comprising:a base member; anda layer of microcapsules, coated over said base member, containing a first type of microcapsule filled with a first type of first-single-color dye, and a second type of microcapsule filled with a second type of first-single-color dye,said first type of microcapsule exhibiting a first temperature/pressure characteristic such that, when said first type of microcapsule is squashed under a first predetermined pressure at a first predetermined temperature, discharge of said first type of first-single-color dye from said squashed microcapsule occurs,said second type of microcapsule exhibiting a second temperature/pressure characteristic such that, when said second type of microcapsule is squashed under said first predetermined pressure at a second predetermined temperature, discharge of said second type of first-single-color dye from said squashed microcapsule occurs.