Transfer device and image forming apparatus

A transfer device comprising:

• a transfer roller that includes a rotating shaft, which faces an image carrying member, at its center, and is capable of rotating about the rotating shaft;
• an urging device that urges the rotating shaft in a direction that the transfer roller presses the image carrying member;
• and
• a regulating roller that is provided to the rotating shaft so as to be opposite to the transfer roller while a portion of the rotating shaft that is urged by the urging device is sandwiched therebetween, the regulating roller pressing the image carrying member to regulate a pressing force of the transfer roller that presses the image carrying member.

A transfer device comprising:

• a transfer roller that includes a rotating shaft, which faces an image carrying member, at its center, and is capable of rotating about the rotating shaft;
• an urging device that urges the rotating shaft in a direction that the transfer roller presses the image carrying member;
• and
• a pressing device that presses the rotating shaft in a direction reverse to the direction that the urging device urges the rotating shaft, when the urging device urges the rotating shaft.

An image forming apparatus comprising:

• an image carrying member;
• a developing device that supplies a developing agent to the image carrying member;
• a transfer roller that is rotatably provided facing the image carrying member;
• an urging device that urges the transfer roller in a direction that the transfer roller presses the image carrying member;
• and
• a regulating roller that is provided to a shaft commonly used with the transfer roller and presses the image carrying member to regulate a pressing force of the transfer roller that presses the image carrying member, wherein the regulating roller is made of an elastic material.

An image forming apparatus comprising:

• a plurality of image carrying members;
• a plurality of developing devices, each of which supplies a developing agent to each of the respective plurality of image carrying members;
• a plurality of transfer devices, each of which includes:
• a transfer roller that is rotatably provided facing the corresponding one of the plurality of image carrying members;
• and
• an urging device that urges the transfer roller in a direction that the transfer roller presses the corresponding one of the plurality of image carrying members;
• and
• a regulating roller that is provided to a shaft commonly used with the transfer roller and presses the corresponding one of the plurality of image carrying members to regulate a pressing force of the transfer roller that presses the corresponding one of the plurality of image carrying members, wherein the regulating rollers are made of an elastic material.

A transfer device comprising:

• a transfer roller that is rotatably provided facing an image carrying member;
• an urging device that urges the transfer roller in a direction that the transfer roller presses the image carrying member;
• and
• a regulating roller that is provided to a shaft commonly used with the transfer roller and presses the image carrying member to regulate a pressing force of the transfer roller that presses the image carrying member, wherein the regulating roller is elastically biased when pressing the transfer roller against the image carrying member.