Printer Part: Logic Board

A main board (logic board) in a inkjet printer plays it main role as a control center of the inkjet printer operation. It arrange all of mechanical systems (such as paper feeding system, purging system,etc) and electrical systems (such as sensor,heater,carriage unit,motor driver,data transfer to/from computer,etc).
The logic board provides important data (EEPROM data) that contains data such as: page counter, time setting, waste ink absorber counter, error code history, etc.
The data that stored by the logic board is very useful for troubleshooting the printer problems.