CROSS REFERENCE TO RELATED APPLICATIONS

This application is filed under 35 U.S.C. 0.371 as a National Stage of PCT International Application No. PCT/KR2018/007738, filed on Jul. 9, 2018, in the Korean Intellectual Property Office, which claims the priority benefit of Korean Patent Application No. 10-2018-0007854, filed on Jan. 22, 2018, in the Korean Intellectual Property Office. The disclosure of PCT International Application No. PCT/KR2018/0007738, filed on Jul. 9, 2018, is incorporated by reference herein in its entirety. The disclosure of Korean Patent Application No. 10-2018-0007854, filed on Jan. 22, 2018, is incorporated by reference herein in its entirety.

BACKGROUND ART

An image forming apparatus is an apparatus that performs image data generation, printing, reception, transmission, and the like. Representative examples of this apparatus include a printer, a copier, a facsimile, and a multifunctional apparatus which implements a function of them in an integrated manner.

Such an image forming apparatus picks up the printing paper loaded in the loading tray to a transfer path, forms an image on the picked-up printing paper, and performs a printing operation.

