Granted Patent B2

US 8,195,083 · App. 12/046,057 · Granted Jun 5, 2012

Abstract

Claims (27)

1. An imaging apparatus, comprising:

an image transfer device;

a first motor drivingly connected to said image transfer device;

a reversible redrive section downstream from said image transfer device, said reversible redrive section including a second motor; and

a duplexing section including a third motor, said duplexing section being positioned to receive media from said redrive section;

said first motor, said second motor and said third motor each being independently controlled, said first motor moving a first piece of media in a first paper path at a first speed, said second motor moving a second piece of media in a second paper path at a second speed, and said third motor moving a third piece of media in a third paper path at a third speed, wherein said first speed, said second speed and said third speed are all different from each other and further wherein said third motor holds said third piece of media in said duplexing section at a zero speed some portion of the time while said first motor moves said first piece of media in said first paper path at a non-zero speed.

2. The imaging apparatus of claim 1 , wherein said first motor and said third motor are each driven in only one direction and said second motor is reversible.

3. The imaging apparatus of claim 1 , wherein at least one of said second speed and said third speed is higher than said first speed some portion of the time.

4. The imaging apparatus of claim 1 , wherein at least one of said second speed and said third speed is variable and said first speed is substantially constant.

5. The imaging apparatus of claim 1 , further comprising a controller including a status determination means that determines the functioning of said duplexing section, when said duplexing section is not functioning properly said controller does not activate said third motor and said first motor and said second motor are utilized to thereby allow the imaging apparatus to function in a simplex only mode.

6. A media transport system for use in a printer, the media transport system comprising:

an imaging section;

a first motor associated with said imaging section;

a reversible redrive section downstream from said imaging section, said reversible redrive section including a second motor; and

a duplexing section including a third motor, said duplexing section being positioned to receive media from said redrive section, said first motor, said second motor and said third motor each being independently controlled,

wherein said first motor moves a first piece of media in a first paper path at a first speed, said second motor moves a second piece of media in a second paper path at a second speed, and said third motor moves a third piece of media in a third paper path at a third speed, wherein said first speed, said second speed and said third speed are all different from each other and further wherein said third motor holds said third piece of media in said duplexing section at a zero speed some portion of the time while said first motor moves said first piece of media in said first paper path at a non-zero speed.

7. The media transport system of claim 6 , wherein said first motor and said third motor are each driven in only one direction, said second motor being reversible.

8. The media transport system of claim 6 , wherein at least one of said second speed and said third speed is higher than said first speed some portion of the time.

9. The media transport system of claim 6 , wherein at least one of said second speed and said third speed is variable and said first speed is substantially constant.

10. The media transport system of claim 6 , further comprising a controller including a status determination means that determines the functioning of said duplexing section, when said duplexing section is not functioning properly said controller does not activate said third motor and said first motor and said second motor are utilized to thereby allow the media transport system to function in a simplex only mode.

11. A method of transporting media in a printer, the method comprising the steps of:

controlling a first motor to drive a first piece of media in an imaging section;

controlling a second motor to drive a second piece of media in a reversible redrive section, said reversible redrive section being downstream from said imaging section; and

controlling a third motor in a duplexing section that is positioned to receive media from said reversible redrive section, said first motor, said second motor and said third motor each being independently controlled,

wherein said first motor drives said first piece of media in a first paper path at a first speed, said second motor drives said second piece of media in a second paper path at a second speed, and said third motor drives said media received from said reversible redrive section in a third paper path at a third speed, wherein said first speed, said second speed and said third speed are all different from each other and further wherein said third speed of said media received from said reversible redrive section is held at zero speed some portion of the time while said first motor moves said first piece of media in said first paper path at a non-zero speed.

12. The method of claim 11 , wherein said controlling said first motor step moves said first piece of media in a paper path at a first speed, said controlling a third motor moves said second piece of media in another paper path at a variable speed.

13. The imaging apparatus of claim 1 , wherein at least one of said second speed and said third speed is variable based on a length of each of said first piece of media, said second piece of media, and said third piece of media.

Assignments (8)