Patent ID: 9116487
Filing Date: 2015-08-25
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image bearing member to bear a latent image on a surface thereof; a plurality of developing devices disposed corresponding to the image bearing member to develop latent images formed on the image bearing member with toner in different colors to form toner images in different colors; a transfer device to transfer the toner images from the image bearing member onto a recording medium; a moving device to move the transfer device to contact the image bearing member in a contact state and separate from the image bearing member in a separating state; a color drift detector to detect color drift of the toner images borne on the image bearing members; a test pattern forming device to form a test pattern on the image bearing member to detect the color drift; and a color drift correction device to correct the color drift in the separating state in which the image bearing member and the transfer device are separated from each other; the test pattern forming device forming the test pattern again in an area on the image bearing member contacting the transfer device but not pressed by the transfer device after the color drift correction device corrects the color drift in the separating state, and the color drift correction device correcting the color drift in the contact state in which the image bearing member and the transfer device are in contact with each other.