Patent ID: 7549955

Claim:
A device for creasing a piece of flat material said device comprising: (A) a printing device having a housing and a print-head positioned in relationship to a printer surface of the printing device for printing on a flat material that moves along a moving path on the printer surface; (B) at least a first creasing surface disposed on the housing; (C) a track disposed in relationship to the printer surface, the track having a second creasing surface communicating at least part of the length of the track; (D) a shifting mechanism for positioning the track and first creasing surface relative to each other between a first position and a second position so that, in a first position, the first creasing surface is spaced away from the track and, in the second position, the first creasing surface is in close proximity of the track in a cooperative manner, thereby causing part of the flat material under the first creasing surface to bend between the first and second creasing surfaces; and (E) a movement mechanism for moving the housing and the print head along a moving and printing direction substantially perpendicular to the moving path of the flat material when the track and the first creasing surface are positioned at the second position so as to move the first creasing surface from a first side of the flat material to an opposing second side of the flat material one or more times for causing said bending on the flat material to form one or more creases in the flat material at the proper locations of the flat material to facilitates folding or the flat material.