Granted Patent B2

US 7,272,350 · App. 11/127,407 · Granted Sep 18, 2007

Abstract

Claims (43)

1. A method of forming an image in an image forming apparatus, comprising the steps of:

positioning a plurality of photoconductive members within the image forming apparatus;

transferring toner at each of the plurality of photoconductive members to an image transfer medium while a plurality of toner transfer members are at a first position;

positioning each of the plurality of transfer members at a second position after transfer of toner to the image transfer media without moving the plurality of photoconductive members;

stopping drive to at least one of the plurality of photoconductive members after moving the plurality of transfer members to the second position; and

clutching a motor that drives the at least one of the plurality of photoconductive members and at least one other of the plurality of photoconductive members and continuing to rotate the at least one other of the plurality of photoconductive members.

2. The method of claim 1 , wherein the step of positioning the plurality of toner transfer members at the first position places the image transfer medium adjacent to the plurality of photoconductive members.

3. The method of claim 1 , wherein the step of positioning the plurality of toner transfer members at the first position places the image transfer medium in contact with the photoconductive members.

4. The method of claim 1 , wherein the step of transferring toner at each of the plurality of photoconductive members to the image transfer medium comprises transferring the toner directly to a media sheet.

5. The method of claim 1 , further comprising transferring the toner from the image transfer medium to a media sheet at a second transfer position.

6. The method of claim 1 , further comprising the step of transferring black toner to the image transfer medium when the plurality of toner transfer members are at the first position.

7. A method of forming an image in an image forming apparatus, comprising the steps of:

positioning a first color photoconductive member and a second black photoconductive member;

positioning a first transfer member at an image transfer position adjacent to the first color photoconductive member;

positioning a second transfer member at the image transfer position adjacent to the second black photoconductive member;

transferring a first color toner image from the first color photoconductive member to an image transfer medium;

transferring a second black toner image from the second black photoconductive member to the image transfer medium;

moving the first and second transfer members to a non-image transfer position and maintaining the position of the first color photoconductive member and the second black photoconductive member;

stopping rotation of the first color photoconductive member after moving the first transfer member to the non-image transfer position; and

clutching a motor that drives the first color photoconductive member and the second black photoconductive member and continuing to rotate the second black photoconductive member.

8. The method of claim 7 , further comprising the step of moving the first transfer member to the non-image transfer position prior to transferring toner from the second black photoconductive member.

9. The method of claim 7 , further comprising the step of simultaneously moving the first transfer member and the second transfer member to the non-image transfer position.

10. The method of claim 9 , further comprising the step of moving the first transfer member and the second transfer member to the non-image transfer position after transferring toner from the second black photoconductive member.

11. The method of claim 7 , wherein the steps of positioning the first transfer member and the second transfer member at the image transfer position comprises placing the image transfer medium spaced away from the first color photoconductive member and the second black photoconductive member.

12. The method of claim 7 , wherein the steps of positioning the first transfer member and the second transfer member at the image transfer position comprises placing the image transfer medium in contact with the first color photoconductive member and the second black photoconductive member.

13. A method of forming an image in an image forming apparatus, comprising the steps of:

positioning a first transfer member at an image transfer position adjacent to a first photoconductive member;

positioning a second transfer member at the image transfer position adjacent to a second photoconductive member;

transferring a first toner image from the first photoconductive member to an image transfer medium at the first transfer member;

moving the first transfer member to a non-image transfer position without moving the first photoconductive member;

stopping rotation of the first photoconductive member;

clutching a motor that drives the first and second photoconductive members and continuing to rotate the second photoconductive member;

transferring a second toner image from the second photoconductive member to the image transfer medium at the second transfer member; and

moving the second transfer member to the non-image transfer position without moving the second photoconductive member.

14. A method of forming an image in an image forming apparatus, comprising the steps of:

forming a first toner image on an image transfer medium at a first position;

after forming the first toner image, moving a first transfer member at the first position from an image transfer position with the image transfer medium adjacent to a first photoconductive member to a non-image transfer position with the image transfer medium spaced apart from the first photoconductive member;

stopping rotation of the first photoconductive member after moving the first transfer member to the non-image transfer position;

clutching a motor that drives the first photoconductive member and a second photoconductive member and continuing to rotate the second photoconductive member;

moving the image transfer medium to a second downstream position;

forming a second toner image on the image transfer medium at the second downstream position; and

after forming the second toner image, moving the second transfer member from the image transfer position with the image transfer medium adjacent to the second photoconductive member to a non-image transfer position with the image transfer medium spaced apart from the second photoconductive member.

15. The method of claim 14 , further comprising the step of moving the first transfer member from the non-image transfer position to the image transfer position prior to forming the first toner image.

Assignments (8)