Image forming apparatus having a one side mode for forming an image on one side of a recording sheet and a both side mode for forming an image on both sides of a recording sheet

摘要

As a service man resisters in a maintenance mode a both side copy mode as a standard copy mode, a one side copy key and a "one side→ both sides" key are displayed on an operation/display unit. If an optional mode to be registered as the standard copy mode by a user does not contain the both side copy mode, a change in the standard copy mode is inhibited.