Inkjet Printers

Inkjet Printers

1. Capabilities

   • Resolution in dots per inch (DPI)
   • How ink is released?
     • Piezoelectric method
       • vibration to release droplet of ink from cartridge
     • Thermal Method
       • releases droplet of ink by heating the ink

2. Inkjet Print Process

   • 1- Preparation
     • initiated, motor and belt move across paper
   • 2- Ink Dispersion
     • heat/vibration - liquid out of nozzles
   • 3-Ink Deposit
     • printhead back and forth on paper/ one row at a time
     • 300 distant DPI
   • Paper Advance
     • rollers/feeders after every row

3. Solid Ink Printers

   • between inkjet and laser
   • ink from melted solid-ink sticks
   • melted ink in printhead
     • transferred to drum
       • image to paper

4. Thermal Inkjet printers

   • 1- ink heated
   • 2- bubble in cartridge, shoots ink
   • 3- heat turned off, element cools
   • 4- more ink sucked in nozzle

5. Piezoelectric inkjet printers

   • piezo crystals flexes when current flows through it
   • changes shape to force drop of ink