2025 Dawson Machinery Custom Inkjet , 4 inch , 9 inch multiple sizes

We are building custom ink jet systems , PDF driven , great for gaming, transactional, advertising , can be retrofitted to any machine , let me get you into the digital variable print market on a budget also financing available, also can replace all Kodak heads for a fraction of the price

1. How They Work

• Nozzles: Each head contains hundreds or thousands of microscopic nozzles (often 10–50 μm in diameter).
• Droplet Formation: Ink is pushed through these nozzles in precise volumes (picoliters) and at exact timings to produce an image.
• Firing Mechanism: The ink can be ejected by:
• Thermal (Bubble Jet): Heats the ink to form a vapor bubble that pushes it out.
• Piezoelectric: Uses a piezo crystal that flexes when voltage is applied, pushing ink out without heat.
• Continuous Inkjet (CIJ): A continuous stream of ink drops is charged and deflected onto the substrate or into a waste stream.

2. Types of Inkjet Print Heads

• Thermal Inkjet (TIJ)
• Common in desktop printers (HP, Canon).
• Lower cost, disposable heads.
• Not suited for all inks (heat-sensitive inks may be problematic).
• Piezoelectric Inkjet (PIJ)
• Found in Epson, Ricoh, Konica Minolta industrial heads.
• Can handle more ink types (UV-curable, solvent, aqueous, pigment).
• Higher durability, precise droplet control.
• Continuous Inkjet (CIJ)
• Used in coding/marking applications (date codes, batch numbers).
• Extremely fast, works on non-porous surfaces.

3. Key Performance Specs

• Resolution (DPI): How many droplets per inch; higher DPI means sharper detail.
• Drop Size: Measured in picoliters; smaller drops allow smoother gradients.
• Firing Frequency: Determines speed (often in kHz).
• Ink Compatibility: Solvent, water-based, UV, dye, or pigment-based inks.
• Head Life: From a few liters of ink (disposable heads) to hundreds of liters (industrial heads).