| 摘要 |
<p>An additional control device or a cartridge mounted on an electronic equipment such as a laser printer, and a device and method for processing information by means of the cartridge (503), which facilitates the improvement, addition and alteration of electronic equipment that have been conventionally impossible. A cartridge (503) mounted on a laser printer (500) is provided with a RISC type processor (601) and a data transfer control part (603) of an ASIC, etc. The microprocessor (601) receives the data to be printed via a read-out control circuit (620) or a FIFO control circuit (623) provided in the data transfer control part (603). Then, it expands the data into image data and stores them in RAMs (611-614). Thereafter, it transfers the image data to the side of an electronic control equipment via double bank control circuit (624). The read out control circuit (620) and the double bank control circuit (624) transfer the image data to the side of the microprocessor (601), using a data bus which is a read only data bus when viewed from the electronic control equipment. The image data are printed by a laser engine (505).</p> |
