Epson Serial Interface GQ-3500 User Manual

EPSON®Serial Interfacefor the GQ-3500Printed in Japanm 88.11-5 Y59099101000

The GQ-3500 has a buffer that will hold up to 102 characters,including the ETX code at the end of the group. The computer cansend the first group of c

1. When the input buffer becomes nearly full (within 128 bytes)2 When the pinter goes off line (by pressing the ON LINE button)3.When the printer runs

Table5. Pins and signalsSerial Interface11

Table 5. Continued12Serial Interface

Serial InterfaceThe serial interface is an option for your CQ-3500 printer.Thesepages tell you how to install and use the serial interface.The GQ-3500

3.4.5.6.For RS422 operation, set the jumpers at Jl and J2 as follows.At Jl,move REV, RD, and SRI to the right. At J2, set all jumpers in theinstalled

3.4.Configure the jumpers on the serial interface card as describedabove.Remove the parallel interface from the back of the printer byloosening the tw

The Serial Interface DIP SwitchesOn the right side of the serial interface are two banks of DIPswitches, as shown in Figure 2. Group 4 is on the left

Table 1. Serial interface DIP switchesSerial Interface5

Setting the data trader rateThe following table shows the DIP switch settings for the variouspossible data transfer (baud) ratesTable2. Baud rate sett

The jumpers at JlThe jumpers at J1 are two position jumpers. The small plugs can bemoved from the left two wires to the right two wires to change thes

The jumpers at J2Jumpers at J2 are single position jumpers; they can be eitherinstalled or disconnected. To change the settigs of these jumpers youmus