WEB SERVER, IMAGE FORMING DEVICE, SCREEN CONTROL PROGRAM, AND SCREEN CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To suppress automatic update undesirable to a user, on an operation screen.SOLUTION: Screen data of a sub screen 90 to be displayed on a host device of an image forming device includes automatic update data which shows whether to permit or not automatic update of the sub screen. Screen data of an operation screen causes the host device to repeatedly transmit a request for the screen data of the sub screen 90 to a multifunction machine when a setting value for the automatic update on the operation screen shows permission of automatic update (a), and prohibits the automatic update of the sub screen 90 regardless of the setting value for the automatic update when a value of the automatic update data on the sub screen 90 shows non-permission of the automatic update (b).