| 摘要 |
An image forming apparatus comprises an image forming apparatus body, a media cartridge removably housed in an image forming apparatus body, the media cartridge being provided with a feeding shaft about which a media sheet consisting of a photo and pressure sensitive recording sheet and a leader sheet which are connected to each other at their one end portions is wound, and the leader sheet having an information mark positioned at a distance longer than length L away from a free end thereof for showing characteristics of the photo and pressure sensitive recording sheet, a winding shaft for winding the media sheet fed from the media cartridge, sheet detecting device disposed adjacent the winding shaft, the sheet detecting device being actuated by bringing a leader sheet into contact therewith when the free end of the leader sheet is wound about the winding shaft and mark reading device provided between the media cartridge and the winding shaft at a distance as same as the length L away from the winding shaft, for reading the information mark after actuation of the sheet detecting device.
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