| 摘要 |
PROBLEM TO BE SOLVED: To realize the control system that takes various reply conditions into account by sending instruction data to plural operation means whose reply speed condition differs via a common communication channel according to the priority based on the reply speed condition. SOLUTION: Plural operation means 20 such as high speed optical control means, medium speed drum peripheral device control means and low speed paper feed means have different reply speed conditions. Each control means 30 corresponding to each condition stores a count representing the priority based on each reply speed condition and controls each operation means 20 according to the count. In this case, a communication state discrimination means 51 discriminates it that other communication is busy and a priority discrimination means 53 discriminates it that other control means with higher priority makes no communication request and when the conditions above are set, instruction data or status data in its own memory means are transferred serially to a relating control means via a LAN communication channel 25 by a communication means 31. |
