- Removes power from printer when it hasn’t been used for a while.
- User can set the amount of time to wait before removing power.
- Returns power to printer when print signal is sent from computer.
- Buffer holds data until the printer finishes initializing and becomes ready to receive data.
- Not recommended for bubblejet, inkjet, or other printers that have a “shutdown” circuit.
- Doesn’t work on the IEEE-1284 interface.