| 摘要 |
PURPOSE:To control the expendables in a recording apparatus on the side of external machinery by providing a means detecting the residual quantity of the expendables used in recording and a means transmitting the data related to the detected expendables to the external machinery. CONSTITUTION:The residual quantity of each of expendables is detected by an expendable detection part 122 and the detection result is stored in an RAM. In the expendable detection part 122, the residual quantity of recording paper is detected by a recording paper sensor and the residual quantity of toner is detected by a toner sensor and the residual amt. of ink is detected by an ink cartridge sensor and the residual quantity of each of expendables is measured on the basis of the total operation time of a recording apparatus after the replacement of a cartridge. Subsequently, on reference to the measured results stored in the RAM, the measured results are informed to connected host computers 100, 103, 106. When this transmission is completed, the original routine work is performed. |
