| 摘要 |
PURPOSE:To improve the operability of parts replacement by setting life periods which are integral multiples for plural replacement parts respectively, providing a fixing means which fixes replacement parts set to the same life integrally, and taking out the replacement parts which are set to the same life at the same time. CONSTITUTION:An electrostatic charger 2 and a transfer charger 5 which has the same replacement life are loaded on a cleaning unit 6 which has double replacement life and the cleaning unit 6 is loaded on a photosensitive drum 1 which has further double life respectively. Therefore, even when the running quantity reaches a specific value and the electrostatic charger 2 and transfer charger 5 are taken out with grips 21 and 31, the cleaning unit 6 is still mounted on the photosensitive drum 1 and the electrostatic charger 2 and transfer charger 5 are replaced with new ones independently and respectively. Consequently, the parts having the same life can be taken out together at a time to improve the operability of parts replacement. |
