Pp Continuous Inkjet Printer

Continuous inkjet printer

Positive drops of ink fall between two metal plates As they fall they accelerate due to gravity

Positive drop

If the paper is moved .......

... it leaves a trail of ink drops

Positive drop

A circuit is connected to charge the plates

If the plates are charged they are deflected as they fall

Positive drop

If the voltage is changed around the drops will be deflected the other way It would also do this if a negative drop was used with the plates the original way around

Positive drop

If the voltage is increased the droplet is deflected more

Positive drop

If the plates are moved further apart the field is weaker so the deflection is less

Positive drop

If the plates are lowered the deflection is smaller as the drops are travelling faster as they are deflected

Positive drop

Ink jet printer

Ink jet printer Charging plates

Droplets of ink are fired through a nozzle

The droplets can be charged by a pair of plates

Deflecting plates

Ink jet

Pump

If the deflection plates are charged to deflect the droplets to go where they are needed on the paper as it moves past

Ink reservoir

Paper

Large, expensive ink jet printers can print very fast