Thermal ink jet printing

A thermal ink jet (TIJ) printing apparatus comprising:

• a TIJ printhead comprising:
• a firing chamber to jet a latex ink or a dispersed polymer particle ink from a nozzle;
• and
• a resistor to heat the latex ink or the dispersed polymer particle ink to jet from the nozzle;
• a memory storing machine readable instructions to:
• apply F electrical firing pulses to the resistor of the TIJ printhead for a duration of about 0.50 to 1.00 μs to jet the latex ink or the dispersed polymer particle ink from the nozzle, wherein an F electrical firing pulse represents a main electrical firing pulse;
• and
• a processor to implement the machine readable instructions.

A thermal ink jet (TIJ) printhead comprising:

• a firing chamber to jet a latex ink or a dispersed polymer particle ink from a nozzle, wherein the firing chamber includes:
• a SU8 bore layer formed in a range of about 5-40 μm, and
• a SU8 chamber layer formed in a range of about 9-40 μm;
• and
• a thin film stack for the TIJ printhead including:
• a Tantalum (Ta) cavitation resistance layer formed in a range of about 0-5100 Å, and
• passivation Silicon Nitride (SiN) and Silicon Carbide (SiC) layers formed in a range of about 900-2500 Å.