Inkjet printing system with managed condensation control airflow

An inkjet printing system comprising:

• a receiver transport system having an actuator that moves a receiver in a direction of receiver movement past a plurality of printheads arranged to direct droplets of an ink having a vaporizable carrier fluid to the receiver;
• a barrier between the printheads;
• and
• a plurality of caps with each cap positioned about one of the inkjet printheads and extending from the barrier toward the receiver to create higher resistance flow areas between the cap and the receiver with each cap having at least one opening through which the droplets of ink can pass from the plurality of printheads through the higher resistance flow areas to the receiver with the caps being separated to create lower resistance air flow channels between the caps, the barrier, and the receiver, through which a cross-module airflow can flow around the higher resistance flow areas;
• wherein the caps have deflection surfaces that are shaped to direct the cross-module airflow air into the lower resistance airflow channels and through which the cross-module air flow can flow past the first print line without creating flows into the higher resistance flow areas that create an artifact in a print made using ink droplets;
• wherein a first portion of the plurality of inkjet printheads is arranged along a first print line that is not parallel to a direction of receiver movement and a second portion of the plurality of printheads is arranged along a second print line that is not parallel to the direction of receiver movement and wherein the direction of receiver movement brings the receiver past the first print line and then past the second print line in a direction that is parallel to the direction of the cross-module airflow;
• and
• wherein the caps about the first portion of the plurality printheads at the first print line have trailing surfaces to guide cross-module airflow after the cross-module airflow passes the first portions of the plurality of inkjet printheads of the first print line and the caps about the second portion of the plurality of printheads at the second print line have deflection surfaces that cooperate with the trailing surfaces so that any of the cross module airflow that has passed printheads of the first print line does not create conditions that can disrupt ink droplet placement by the inkjet printheads of the second print line.

An inkjet printing system comprising:

• a receiver transport system having an actuator that moves a receiver in a direction of receiver movement past a plurality of printheads arranged to direct droplets of an ink having a vaporizable carrier fluid to the receiver;
• a barrier between the printheads;
• and
• a plurality of caps with each cap positioned about one of the inkjet printheads and extending from the barrier toward the receiver to create higher resistance flow areas between the cap and the receiver with each cap having at least one opening through which the droplets of ink can pass from the plurality of printheads through the higher resistance flow areas to the receiver with the caps being separated to create lower resistance air flow channels between the caps, the barrier, and the receiver, through which a cross-module airflow can flow around the higher resistance flow areas;
• wherein the caps have deflection surfaces that are shaped to direct the cross-module airflow air into the lower resistance airflow channels and through which the cross-module air flow can flow past the first print line without creating flows into the higher resistance flow areas that create an artifact in a print made using ink droplets system
• the inkjet printing system further comprising a side flow control structure positioned at an end of the first print line along the width direction and extending from the barrier toward the receiver to create a higher resistance flow area between the side flow control structure and the receiver and an end cap is positioned to create a lower resistance air flow channel between the side flow control structure and the end cap that is adjacent to the side flow control structure to provide a flow of cross-module airflow round the adjacent cap that does not create pressures in the lower resistance flow areas that are sufficient to cause flows into the higher resistance flow areas that induce artifacts in a print.