Interface 12-3In RS-232, the least significant bit (LSB) is sent first, and the MSB is sent last. For characters00 hex – 7F hex, the first seven bits are the same for 8-bit as for 7-bit communications.Transmitted ParityIf the computer expects busy-by-code handshaking (XON/XOFF or ETX/ACK), the transmittedparity at the printer must match the host. Even with the printer set to IGNORE RECEIVEDPARITY, the printer’s transmitted parity must be set to match the host if using busy-by-code,otherwise the host may not recognize the handshake and the printer’s buffer will overflow.Serial Data CableThe serial interface connector is a 25-pin female connector located on the back of the printer.The serial interface data cable requires the following or equivalent parts to mate with thefemale connector on the printer.Cannon 25-pin plug DBM-25PCannon shell DB115339-22Screws #4 – 40 x 1/8 (2 required)STOPBIT(S)PARITYBITLEASTSIGNIFICANTBITSTARTBITUPPERCASE “E”ONE BIT TIME
