Optical reader applicable to plurality of uses

摘要: An optical reader capable of reading a bar code in mounted state when an article carrying the passes and codes set array on menu sheet hand-held has been disclosed. The comprises light source, scanner that is driven by drive scans emanating from plurality reflection mirrors reflect scanning scanned create pattern composed scan trajectories, read window through which reflected emitted, receiver for receiving mark. further mode changer changing operation modes among one or ones trajectories to be validated are different. include specific ray mark tracing only given trajectory constituting but other invalidated. For any sheet, will drawn read. Since invalid,