IMAGE FORMING APPARATUS, OUTPUT CONTROL APPARATUS, IMAGE OUTPUT APPARATUS, METHOD FOR IMAGE FORMING, METHOD FOR OUTPUT CONTROLLING AND FOR IMAGE OUTPUTTING

摘要

PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing a load of a communication processing between a video controller and a printer engine. SOLUTION: An engine section 25 judges whether or not it receives a status change monitoring command from a controller section 26 (S131). When receiving the command, whether or not it receives a status designating command (S132) is judged. When receiving the command, data of a second byte of the status designating command is stored in a RAM (S133). Whether or not the status designated by the status change monitoring command is equal to the designated data is judged (S134). When it is true, a signal of/CCHG is set to be in an L level for 10 msec (S136). The controller section is notified by a signal of the change at a time only when an arbitrary status becomes a specific condition.