Patent ID: 11917112
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. An image forming apparatus comprising:
an image forming part to print an image on a printing medium, the image forming part comprising a discharging tray on which the printing medium on which printing is completed is loaded and located on an upper surface of the image forming part;
a scanner part separated upward from the image forming part to form a space with the upper surface of the image forming part, the scanner part to read an image from a document;
a lifting mechanism to support the scanner part to move up and down with respect to the image forming part, wherein the lifting mechanism comprises:
a rack gear provided on one of a fixed side wall and a lifting side wall;
a pinion gear provided on the other of the fixed side wall and the lifting side wall and engaged with the rack gear; and
a frictional member to apply a rolling friction force to the pinion gear; and

a pair of side walls comprising the fixed side wall and the lifting side wall, to accommodate the lifting mechanism therein, and facing each other in a width direction of the printing medium to support the scanner part with respect to the image forming part, wherein the fixed side wall is supported by the image forming part and the lifting side wall is moved up and down with respect to the fixed side wall and is supported by the scanner part.