Control device for stepping motor

A control device for a stepping motor comprising:

• data storage means for storing setting data for controlling a state of the stepping motor for each of a plurality of basic control items obtained by classifying control from activation to stoppage of the stepping motor;
• plurality of executing means for executing processing with respect to the basic control items based on the setting data stored in the data storage means;
• and
• control means for specifying the order of executing the processing by the plurality of executing means,
• wherein the stepping motor is controlled by operating the executing means in accordance with the order of execution specified by the control means, and the setting data of plurality of executing means are reset and modified before the processing is executed in a new sequence during rotation of the stepping motor.

A control method of a stepping motor comprising:

• classifying control from activation to stoppage of a stepping motor into a plurality of basic control items;
• including a plurality of modules capable of executing a plurality of kinds of processing with respect to the basic control items;
• storing setting data for controlling a state of the stepping motor for each of the basic control items in a data storage unit;
• specifying the order of executing the processing by the plurality of modules;
• reading out the setting data stored in the data storage unit in accordance with the specified executing order;
• sequentially operating the plurality of modules based on the readout setting data to control the stepping motor;
• and
• modifying the setting data of the modules before the processing is executed in a new sequence during rotation of the stepping motor.

An image forming device comprising:

• an image forming unit that forms an image in an image carrier;
• a transferring member that transfers an image formed in the image carrier to paper;
• a paper conveying member that conveys the paper to the image forming unit;
• a stepping motor that drives at least one of the image forming unit, the transferring member, and the paper conveying member;
• a data storage unit that stores setting data for controlling a state of the stepping motor for each of a plurality of basic control items obtained by classifying control from activation to stoppage of the stepping motor;
• a plurality of modules that execute processing with respect to the basic control items based on the setting data stored in the data storage unit;
• and
• a module control unit that specifies the order of executing processing in the plurality of modules,
• wherein the stepping motor is controlled by operating the module in accordance with the executing order specified by the module control unit, and the setting data of the modules are reset and modified before the processing is executed in a new sequence during rotation of the stepping motor.

A sequence control device comprising:

• a data storage unit that stores setting data for each of a plurality of basic control items obtained by classifying control from activation processing to stoppage processing;
• a plurality of modules that execute processing with respect to the basic control items based on the setting data stored in the data storage unit;
• and
• a sequencer that makes processing by an optional module among the plurality of modules in the order specified sequentially,
• wherein the setting data of the modules are reset and modified after processing in the sequence set initially is completed, and before the processing is executed in a new sequence.