Parallel interface specification Set 1 Set 2 A-4 Dip Switch and Paper Near End Settings SW Function ON OFF 1-1 Auto line feed Always enabled Always disabled 1-2 Receive buffer capacity 45 bytes 4K bytes 1-3 ~ 1-8 Undefined — — SW Function ON OFF 2-1 Handshaking (BUSY condition) •Receive buffer full •Reading data •Off-line •Receive buffer full •Reading data 2-2 Reserved (Do not change settings) Fixed to Off 2-3 Selects print density Refer to table below 2-4 2-5 ~ 2-7 Reserved (Do not change settings) Fixed to Off 2-8 I/F pin 31 reset signal (Do not change settings) Fixed to On