Patent ID: 8233167

Claim:
An image forming device comprising: a printer configured to form an image on a recording sheet and eject, onto a catch tray thereof, the recording sheet on which the image is formed; a scanner configured to read an image on a document sheet, the scanner being swingable around a swing central axis relative to the printer between: a closed position to close and cover an upper side of the catch tray; and an opened position to open the upper side of the catch tray; a positioning mechanism comprising: a protruding section formed at one of the printer and the scanner so as to protrude in a protruding direction; and a recessed section formed at a different one of the printer and the scanner so as to be recessed in a recessed direction, wherein the protruding section is configured to be fitted into the recessed section when the scanner is in the closed position; a lock mechanism comprising: an engagement hole formed at one of a distal end of the protruding section and a bottom of the recessed section; and an engagement portion formed at a different one of the distal end of the protruding section and the bottom of the recessed section, wherein the engagement hole and the engagement portion are configured to hold the closed position of the scanner by engagement therebetween; a first contact portion provided to the protruding section; and a second contact portion provided to the recessed section, wherein the first contact portion is configured to, when the scanner is swung from the opened position to the closed position, come into contact with the second contact portion before the engagement portion contacts the engagement hole or a region around the engagement hole.