Media transport system

• US 20070080494A1
• Filed: 10/11/2005
• Published: 04/12/2007
• Est. Priority Date: 10/11/2005
• Status: Abandoned Application

• Current Assignee: Marvell International Technology, Ltd. (Marvell Technology Group Limited)
• Original Assignee: Marvell International Technology, Ltd. (Marvell Technology Group Limited)
• Inventors: Simmons, Asher, Schoper, Jeffrey, Marshall, Jerry
• Application Number:
  US11/248,728
• Publication Number:
  US 20070080494A1
• Time in Patent Office: Days
• US Class Current: 271/264
• CPC Class Codes: B65H 2220/02 indicating an entity which is controlled, adjusted or changed by a control process, i.e. output
• CPC Class Codes: B65H 2403/40 Toothed gearings
• CPC Class Codes: B65H 2403/7255 Disc brakes
• CPC Class Codes: B65H 2513/512 Starting; Stopping
• CPC Class Codes: B65H 2601/122 Play
• CPC Class Codes: B65H 5/06 by rollers or balls, e.g. between rollers transport by suction rollers B65H5/226

Abstract

A media transport system is provided including providing a drive system, driving a drive train using the drive system, using the drive train to drive a media driver, and braking the drive train using a drive gear brake.

Claims

1. A media transport system comprising:

providing a drive system;

driving a drive train using the drive system;

using the drive train to drive a media driver; and

braking the drive train at the media driver using a drive gear brake.

2. The system as claimed in claim 1 wherein braking the drive train includes having the drive gear brake normally engaged during braking and stopping.

3. The system as claimed in claim 1 wherein braking the drive train includes simultaneously stopping the drive system.

4. The system as claimed in claim 1 further comprising releasing the drive gear brake simultaneously with tee starting of the drive system.

5. The system as claimed in claim 1 wherein braking the drive train includes adjusting braking torque on the drive train.

6. A media transport system comprising:

providing a drive system including a DC motor;

driving a reduction gear using the drive system, the reduction gear including a drive gear,

using the drive gear to drive a media driver including a print media roller for controlling the movement of a media through a print swath; and

braking the drive gear at the media driver using a drive gear brake having a drive gear brake shoe on a brake piston actuated by a brake cylinder with having a brake actuation spring and a brake actuation coil.

7. The system as claimed in claim 6 wherein braking the drive gear includes having the brake actuation spring normally engaged during braking and stopping.

8. The system as claimed in claim 6 wherein braking the drive gear includes simultaneously stopping power to the DC motor and the brake actuation coil.

9. The system as claimed in claim 6 further comprising starting the drive system and releasing the braking by applying power simultaneously to the brake actuation coil and the DC motor.

10. The system as claimed in claim 6 wherein braking the drive gear includes adjusting braking torque by moving the drive gear brake shoe radially inward or outward on the drive gear.

11. A media transport system comprising:

a drive system;

a drive train for being driven by the drive system;

a media driver for being driven by the drive train to move a media; and

a drive gear brake at the media driver for braking the drive train.

12. The system as claimed in claim 11 wherein the drive train includes the drive gear brake normally engaged for braking and stopping.

13. The system as claimed in claim 11 further comprising a media controller for simultaneously engaging the drive Bear brake and stopping the drive system.

14. The system as claimed in claim 11 further comprising a media controller system for releasing the drive gear brake simultaneously with the starting of the drive system.

15. The system as claimed in claim 11 wherein the drive gear brake includes a system for adjusting braking torque on the drive train.

16. The system as claimed in claim 11 wherein:

the drive system includes a DC motor;

the drive train includes a reduction gear for driving a drive gear;

the drive par is connected to drive a media driver including a media roller for controlling the movement of a media through a print swath; and

the drive gear brake includes a drive gear brake shoe on a brake piston actuation by a brake cylinder with a brake actuation spring and a brake actuation coil.

17. The system as claimed in claim 16 wherein the brake actuation spring is normally engaged for braking and stopping.

18. The system as claimed in claim 16 further comprising a media controller for simultaneously stopping power to the DC motor and the brake actuation coil.

19. The system as claimed in claim 16 further comprising a media controller for starting the drive system and releasing the braking by applying power simultaneously to the brake actuation coil and the DC motor.

20. The system as claimed in claim 16 wherein the drive gear brake includes a mechanism for adjusting braking torque by moving the drive gear brake shoe radially inward or outward on the drive gear.