Internal sliding baffles for controlling air flow in a vacuum transport

An image production device, comprising:

• a media transport assembly having
• a plenum having a vacuum inlet;
• a perforated plate fluidly connected to the plenum, the perforated plate having a plurality of perforations;
• a baffle plate connected to an inside of the plenum such that the baffle plate can slide relative to the perforated plate and can pivot relative to the perforated plate;
• and
• a protrusion on the inside of the plenum,
• wherein the baffle plate is capable of sliding relative to the perforated plate between a closed position and an open position,
• the closed position being where the baffle plate causes the vacuum inlet to be fluidly connected to a first plurality of the perforations,
• the open position being where the baffle plate is pivoted away from the perforated plate, causing the vacuum inlet to be fluidly connected to a maximum number of the perforations,
• the maximum number is greater than the first plurality, and
• the baffle plate is pivoted into the open position by coming in contact with the protrusion;
• a transport belt for transporting a sheet of media across the perforated plate;
• and
• a media storage compartment for storing sheets of the media.

A method for controlling vacuum in an image production device, the method comprising:

• providing an image production device having
• a plenum having a vacuum inlet;
• a perforated plate fluidly connected to the plenum, the perforated plate having a plurality of perforations;
• a baffle plate connected to an inside of the plenum such that the baffle plate can slide relative to the perforated plate and can pivot relative to the perforated plate;
• a protrusion on the inside of the plenum;
• a transport belt for transporting a sheet of media across the perforated plate;
• and
• a media storage compartment for storing sheets of the media;
• sliding the baffle plate relative to the perforated plate between a closed position and an open position, the closed position being where the baffle plate causes the vacuum inlet to be fluidly connected to a first plurality of the perforations, the open position being where the baffle plate is pivoted away from the perforated plate, causing the vacuum inlet to be fluidly connected to a maximum number of the perforations, the maximum number is greater than the first plurality, and the baffle plate is pivoted into the open position by coming in contact with the protrusion.