IMAGE FORMING DEVICE AND IMAGE FORMING METHOD,申请号JP19940228885-传众专利搜索

IMAGE FORMING DEVICE AND IMAGE FORMING METHOD

申请公布号：JPH0869214(A)

申请号：JP19940228885

申请日期：1994.08.30

申请公布日期：1996.03.12

申请人：

CANON INC

发明人：MIYAMOTO KAZUKI;OKI NAOYUKI;NAKANO MAKI;ATOMICHI TAKAHIRO;CHAGI ATSUSHI;TAKADA SHINICHI;FUKATSU YASUO;OYOSHI KAZUHIRO

分类号：G03G21/00;G03G21/02;G03G21/14

主分类号：G03G21/00

摘要：PURPOSE: To provide an image forming device and an image forming method capable of accurately grasping the total number of copying times of an exchangeable processing unit. CONSTITUTION: A copying machine is provided with an exchangeable drum unit 38. The drum unit 38 incorporates a non-volatile memory 104. A serial number, a counter value, processing conditions 1 and 2 are stored in the memory 104. The counter value is incremented by one every time copying is performed. When a copying key is turned on, paper is fed and the value of a drum counter is read in. The values of a main body counter and a drum counter in the copying machine are compared. When they are coincident, copying operation is executed and the values of the main body counter and the drum counter are incremented by one. When they are not coincident, it is thought as the write error of the drum unit 38, and copying is inhibited. The total number of copies in the drum unit 38 is easily obtained.