Patent ID: 6227649
Filing Date: 2001-05-08
Classification: B41J,G06K,H04N

Abstract:
An ink jet recording device for recording onto plural types of recording medium comprising:at least one ink jet recording head;scanning means for scanning said at least one ink jet recording head in a scanning direction, wherein said at least one ink jet recording head has a plurality of ink discharge energy generating elements and a plurality of discharge ports associated therewith, and wherein said discharge ports are adapted to perform a recording operation within a recording area which is a total area covered by said discharge ports during one scanning operation;supplying means for supplying recording signals corresponding to the recording area to a group of the ink discharge energy generating elements;conveying means for conveying one of said plural types of recording medium relative to said at least one ink jet recording head;detecting means for detecting a type of recording medium being conveyed by the conveying means; andcontrol means for controlling said at least one ink jet recording head, said supplying means and said conveying means, said control means operating in a first recording mode and a second recording mode,wherein when said control means operates in the first recording mode, a recording operation within said recording area is completed in a single scanning operation,wherein when said control means operates in the second recording mode, said at least one ink jet recording head is divided into plural recording regions, each recording region including plural discharge ports of the ink let recording head, and the recording operation within said recording area is completed by plural scanning operations such that the recording area is subjected to overlapped recordings by plural discharge ports of different plural recording regions based on identical recording signals supplied by said supplying means, andwherein the control means selects the first recording mode or the second recording mode based on a result of detection of the detecting means.