Method to improve the system stability of inkjet printing systems

A method for stabilization of a print quality in an inkjet printing system including a nozzle arrangement that may be activated to generate a prefire pulse or to fire ink droplets with one or more different droplet sizes onto a recording medium, the method comprising:

• creating a rastered image for an image template, the rastered image being printable by the inkjet printing system;
• determining, based on the rastered image, a dead time between two ink droplets in direct chronological succession to be fired from the nozzle arrangement to print the rastered image;
• determining, based on the dead time, whether the nozzle arrangement should generate a prefire pulse during the dead time;
• and
• if it is determined that the nozzle arrangement should generate the prefire pulse during the dead time, modifying the rastered image to induce the nozzle arrangement to generate the prefire pulse during the dead time.

A method for stabilizing a print quality in an inkjet printing system configured to fire ink droplets onto a recording medium, the method comprising:

• identifying a plurality of control signals that respectively correspond to a different ink droplet size, each control signal of the plurality of control signals being configured to control the inkjet printing system to fire an ink droplet having the corresponding ink droplet size onto the recording medium;
• determining an unused ink droplet size of the different ink droplet sizes to identify a subset of the plurality of control signals, the subset including a smaller number of control signals than the plurality of control signals;
• and
• reassigning a control signal of the plurality of control signals corresponding to the unused ink droplet size as a prefire pulse control signal configured to control the inkjet printing system to generate a prefire pulse.