Patent ID: 6243125
Filing Date: 2001-06-05
Classification: B41J,G02B

Abstract:
An optical printer head comprising:a base having a pair of light passage holes formed through walls thereof opposite to each other;a filter holder formed with a plurality of filter holding holes spaced from each other at predetermined intervals;filters formed so as to be different in permeation wavelength and held in said filter holding holes, respectively;said filter holder being received in said base in a manner to be movable therein and moved so as to position any desired one of said filters on a light path defined between said light passage holes;a light source arranged on an outside of one of said walls of said base; andimage formation device arranged on an outside of the other of said walls of said base opposite to said light source to form light incident on an incident surface thereof within a predetermined maximum allowable incident angle into an image on a record medium;said filter holding holes each including a peripheral surface having a portion which permits light emitted from said light source to be reflected thereon at an angle out of said maximum allowable incident angle;whereby image formation on the record medium is carried out in synchronism with movement of the optical printer head relative to the record medium.