Cap and application devices stabilizing ink in nozzles of inkjet printheads

An apparatus comprising:

• a printhead comprising nozzles adapted to eject liquid ink;
• a cap positioned to contact the printhead when the printhead is not ejecting the liquid ink, wherein the cap and the printhead create a sealed space adjacent the nozzles when contacting each other;
• a humidifier connected to the cap and adapted to supply a moisture to the sealed space;
• and
• a moisture sensor connected to the cap;
• and
• a controller connected to the humidifier adapted to control the humidifier to supply different amounts of the moisture to different color printheads,
• wherein the moisture sensor is adapted to detect an amount of the moisture in the sealed space, and
• wherein the humidifier is adapted to vary supply of the moisture to the sealed space based on the amount of moisture detected by the moisture sensor,
• wherein the humidifier comprises an atomizer adapted to form fine droplets of the moisture in the sealed space and to avoid spraying the moisture directly on the nozzles.

An apparatus comprising:

• a printhead comprising nozzles adapted to eject liquid ink;
• a cap positioned to contact the printhead when the printhead is not ejecting the liquid ink, wherein the cap and the printhead create a sealed space adjacent the nozzles when contacting each other;
• a flexible blade positioned to contact the printhead when the printhead is not in contact with the cap, wherein the flexible blade is adapted to fold over to spread a liquid solution on the nozzles in a first direction, and wherein the flexible blade is adapted to remove excess amounts of the liquid solution from the nozzles in a second direction;
• a humidifier connected to the cap and adapted to supply a moisture form of the liquid solution to the sealed space;
• a moisture sensor connected to the cap;
• and
• a controller connected to the humidifier adapted to control the humidifier to supply different amounts of the moisture to different color printheads,
• wherein the moisture sensor is adapted to detect an amount of the moisture in the sealed space, and
• wherein the humidifier is adapted to vary supply of the moisture to the sealed space based on the amount of moisture detected by the moisture sensor,
• wherein the humidifier comprises an atomizer adapted to form fine droplets of the moisture in the sealed space.