Media transport system

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.

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.