| 摘要 |
PROBLEM TO BE SOLVED: To restrain the fluctuation of subscanning magnification by appropriately judging the temperature rise state of a pressure roller so as to switch the speed of a motor even when plain paper is made to pass after small size paper is made to consecutively pass. SOLUTION: The detected temperature T1 by a thermistor provided at a small size paper passing part is compared with the detected temperature T2 by a thermistor provided at a small size paper non-passing part. When relation T2>T1 is satisfied, it is judged as a situation that the small size paper passes just before. Furthermore, when the size of paper passing next is the plain paper size according to information from a printer driver, the rotating speed of the motor is made low so that the image may not be elongated in size. |
