| 摘要 |
PURPOSE: To effectively hold the data memory of the condition of an apparatus and use history irrespective of an abrupt accident of power failure, etc., by installing a control means which controls to conduct the data memory of the condition of the apparatus and the use history into EEP-ROM of a memory means every time of recording in one cut paper sheet. CONSTITUTION: When the ink residual amount data of a tank in a head are rewritten, the bit map development of print data taken from a host is carried out. When data for one line printing is provided in a buffer 5, the total number of dots of discharged ink required by a print head 8 to print the data for one page is calculated, and the calculated value is set in a counter. After printing, in the discharge of paper, the total number of dots of discharged ink used for printing for one cut paper sheet stored in the counter is function-reduced into an ink amount Vink, the ink amount Vink is decreased from residual volume in EEP-ROM 15, and the value is stored as the new residual ink volume. |
