Patent ID: 8712292

Claim:
A color image forming apparatus, comprising: a photosensitive member; a developing unit including a plurality of developing devices that develop electrostatic latent images formed on the photosensitive member with different color toners as a toner image; an image bearing member for transferring a toner image formed on the photosensitive member, or a conveyance member that conveys a sheet onto which the toner image is transferred; a control unit that performs a contact control in which one of the plurality of developing devices contacts with or separates from the photosensitive member and then an image formation after stand-by for a time period, wherein said color image forming apparatus is operable in a first image forming mode and in a second image forming mode, the contact control in the first image forming mode being different from the contact control in the second image forming mode, and wherein the control unit differentiates a correction amount for alignment in a registration control in the first image forming mode from a correction amount for alignment in the registration control in the second image forming mode.