Printer
AssigneeAlps Electric Co., Ltd.
InventorsTakashi Goto, Katsuhiko Hirayama
Life of this patent
Estimating the term…
Abstract
A printer includes a carriage supporting a print head and movable across print paper for enabling the print head to print on the print paper, a fixed frame, a switch device mounted on one of the carriage and the fixed frame, the switch device being composed of a light transmission means and a light blocking means for blocking light passing through the light transmission means, a sensor means on the other of the carriage and the fixed frame for sensing light passing through the switch device to produce an electric signal, and a means for reading the electric signal as information indicative of printer functions in response to movement of the carriage.
Claims3
A printer comprising:
- (a) a carriage supporting a print head and movable across print paper for enabling the print head to print on the print paper;
- (b) a fixed frame;
- (c) a switch device mounted on one of said carriage and said fixed frame, said switch device being composed of light transmission means and light blocking means for blocking light passing through said light transmission means;
- (d) sensor means on the other of said carriage and said fixed frame for sensing light passing through said switch device to produce an electric signal;
- and
- (e) means for reading said electric signal as information indicative of printer functions in response to movement of said carriage.
Dependencies are inferred from the claim text.