Patent ID: 7831194

Claim:
An image forming apparatus, comprising: a laser scanning unit to irradiate a light; a photoconductive medium to form thereon an electrostatic latent image using the light from the laser scanning unit; a developing roller to transfer a developer onto the electrostatic latent image formed on the photoconductive medium to develop the electrostatic latent image; a transferring roller to form a transfer nip in tight contact with the photoconductive medium and to transfer the developer attached on the photoconductive medium onto a paper passing through the transfer nip; a paper supplying part upon which the paper is stacked; a pickup roller to pick up the paper stacked on the paper supplying part at a pickup point C 4 ; a paper edge sensor to sense a top edge of the paper picked up by the pickup roller at a sensing point C 1 , the paper picked up by the pickup roller being directly supplied toward the transfer nip; and a friction pad disposed downstream of the paper supplying part and always applying pressure on the pickup roller, wherein a first height of the pickup point C 4 of the pickup roller is substantially equal to or lower than a second height of the sensing point C 1 of the paper edge sensor.