Transfer roller controlled to position the paper in registration with the toner image

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member, said control means including second detecting means for detecting a paper fed from said transfer roller, and a transfer motor for controlling rotation of said transfer roller, and said transfer roller being stopped by said transfer motor in response to a detection by said second detecting means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member, said control means including second detecting means for detecting a paper fed from said transfer roller, and a transfer motor for controlling rotation of said transfer roller, and said transfer roller being rotated in a forward direction or a backward direction by said transfer motor in response to a detection by said second detecting means such that the paper can be fed to a desired position.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member;
• input means for inputting a command for image forming, said control means including a transfer motor for controlling rotation of said transfer roller, and said transfer roller being rotated by said transfer motor in response to the command from said input means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member, said transfer roller being driven by the operation of said image forming member, and said control means including first detecting means for detecting a paper fed to said transfer roller, and a plunger for controlling rotation of said transfer roller, and said transfer roller not being stopped by said plunger even when the paper is detected by said first detecting means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member, said transfer roller being driven by the operation of said image forming member, and said control means including second detecting means for detecting a paper fed from said transfer roller, and a plunger for controlling a rotation of said transfer roller, and said transfer roller being stopped by said plunger when the paper is detected by said second detecting means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member;
• input means for inputting a command for image forming, wherein said transfer roller is driven by the operation of said image forming member, and said control means includes a plunger for controlling rotation of said transfer roller, and said transfer roller not being stopped by said plunger even when the command is inputted by said input means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member;
• a paper supply unit in which paper is accommodated, a paper supply roller for supplying the paper to said transfer roller from said paper supply unit, and input means for inputting a command for image forming, wherein the paper is fed by said paper supply roller in response to the command from said input means, said control means including second detecting means for detecting a paper fed from said transfer roller, and a transfer motor for controlling a rotation of said transfer roller, said transfer roller being stopped by said transfer motor when the paper sheet is not detected by said second detecting means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member;
• a paper supply unit in which paper is accommodated, a paper supply roller for supplying paper to said transfer roller from said paper supply unit, and input means for inputting a command for image forming, wherein paper is fed by said paper supply roller in response to the command from said input means, said transfer roller being driven by the operation of said image forming member, and said control means including first detecting means for detecting a paper fed to said transfer roller, and a plunger for controlling a rotation of said transfer roller, said transfer roller not being stopped by said plunger even when the paper is detected by said first detecting means.

An image forming apparatus comprising:

• an image forming member;
• a transfer roller for transferring a toner image formed on said image forming member onto a paper;
• and
• control means for controlling rotation of said transfer roller independently from operation of said image forming member;
• a paper supply unit in which a paper is accommodated, a paper supply roller for supplying paper to said transfer roller from said paper supply unit, and input means for inputting a command for image forming, wherein paper is fed by said paper supply roller in response to the command from said input means, and
• wherein said transfer roller is driven by the operation of said image forming member, and said control means including second detecting means for detecting a paper fed from said transfer roller, and a plunger for controlling rotation of said transfer roller, said transfer roller being stopped by said plunger when the paper is not detected by said second detecting means.