PURPOSE: To print clearly and prevent a paper from being stained, by a construction wherein both end support parts of a platen holder are elastically supported relatively to inserting holes of a frame by the elasticity arising from flexure of the platen holder itself.
CONSTITUTION: A fulcrum-positioning centering mechanism consisting of a projection-and-recess pressure engaging part 9 is provided between the back surface of the platen holder 3 and the frame 4. The platen holder 3 is supported by engaging the centering mechanism 9 and inserting support arm parts 12 into the inserting holes 14. The holder 3 is so set that in its supported condition, appropriate stiffness is generated against a rotatory motion of the engaging part of the centering mechanism by a reaction force arising from a predetermined amount of flexure. Accordingly, the platen holder 3 is elastically supported substantially in use condition by a self-flexing force thereof.
NOZAKI MINEO
ASAKURA OSAMU
NAGASHIMA MASAZUMI
