apple Apple ImageWriter II L Service Source free download

File name Apple ImageWriter II L Service Source.pdf

K Service Source ImageWriter II/L Basics Introduction - 1 Introduction The electrical operation of the printer consists of five printed circuit boards, three motors, and several switches. The boards are the power supply board, main board, sub PCB board, print head board, and the operation panel board. Basics Introduction - 2 The three motors are the carrier motor, line feed motor, and the ribbon position motor. Switches are the home position switch, paper-out sensor switch, and the ribbon switch. Basics Power Supply - 3 Power Supply The ImageWriter II/L has a switching type power supply that eliminates the need for a bulky transformer. When the input AC current is applied to this board, the power supply reduces and rectifies the voltage to the following DC voltages: