Patent ID: 6039481
Filing Date: 2000-03-21
Classification: B41J

Abstract:
A paper width detecting apparatus for an inkjet printer, comprising:a right paper support integrally formed with a right home position detecting rib, the right paper support being a home position reference of a paper sheet for printing;a left paper guide integrally formed with a left paper end detecting rib, the left paper end detecting rib having a light emitting device;a paper feeding section for receiving at least one paper sheet and for supplying the at least one paper sheet for printing with the left paper guide movable in a left direction and in a right a direction to tightly fix the at least one paper sheet at the home position reference of the right paper support;a paper feeding roller for supplying for printing the at least one paper sheet received from the paper feeding section;a carrier that reciprocates for printing on the at least one paper sheet supplied for printing through the rotation of the paper feeding roller; anda photosensor for detecting a light signal output from the light emitting device mounted on the left paper end detecting rib for determining the paper width of the at least one paper sheet.