Image forming apparatus

An image forming apparatus comprising:

• an image bearing member;
• charging means for contacting with and charging said image bearing member to form a latent image on said image bearing member;
• developing means for developing the latent image formed on said image bearing member with a toner, said developing means collecting the toner on said image bearing member;
• and
• a transfer rotary member for nipping a recording material between itself and said image bearing member to transfer a toner image on said image bearing member to the recording material,
• wherein on a return after an image forming operation being interrupted, the toner image on said image bearing member which is not yet transferred to the recording material is transferred to said transfer rotary member.

An image forming apparatus comprising:

• first and second image bearing members;
• first and second charging means for contacting with and charging said first and second image bearing members, respectively, to form latent images on said first and second image bearing members;
• first and second developing means for developing the latent images formed on said first and second image bearing members, respectively, with toners of different colors, said first and second developing means collecting the toners on said first and second image bearing members, respectively;
• an intermediate transfer member provided so as to contact with said first and second image bearing members;
• first transfer charging means for transferring a toner image on said first image bearing member to said intermediate transfer member;
• and
• second transfer charging means for transferring a toner image on said second image bearing member to said intermediate transfer member after the toner image is transferred from said first image bearing member to said intermediate transfer member by said first transfer charging means,
• wherein the toner images transferred to said intermediate transfer member by said first and second transfer charging means are transferred to a recording material, and wherein on a return after a transferring operation of said first transfer charging means being interrupted with a developing operation of said second developing means being not yet started, the toner image on said first image bearing member which is not yet transferred to said intermediate transfer member is transferred to said intermediate transfer member by said first transfer charging means, and a voltage of a polarity opposite to a normal charging polarity of the toner is applied to said second transfer charging means.

An image forming apparatus comprising:

• first and second image bearing members;
• first and second charging means for contacting with and charging said first and second image bearing members, respectively, to form latent images on said first and second image bearing members;
• first and second developing means for developing the latent images formed on said first and second image bearing members, respectively, with toners of different colors, said first and second developing means collecting the toners on said first and second image bearing members, respectively;
• a recording material bearing member provided so as to contact with said first and second image bearing members, and bearing a recording material thereon;
• first transfer charging means for transferring a toner image on said first image bearing member to the recording material borne on said recording material bearing member;
• and
• second transfer charging means for transferring a toner image on said second image bearing member to the recording material borne on said recording material bearing member after the toner image is transferred from said first image bearing member to the recording material borne on said recording material bearing member by said first transfer charging means,
• wherein on a return after a transferring operation of said first transfer charging means being interrupted with a developing operation of said second developing means being not yet started, the toner image on said first image bearing member which is not yet transferred to the recording material is transferred to said recording material bearing member by said first transfer charging means, and a voltage of a polarity opposite to a normal charging polarity of the toner is applied to said second transfer charging means.