Connector Function Summary - Printronix T3204 Maintenance Manual

Connector Function Summary

J1 DRAM Socket. Provides connection for SIMM DRAM package. The factory installed
standard 1 MByte of DRAM may be expanded to a maximum of 17 MBytes.
J2 Operator Panel Interface Connector. Connects the Operator Panel PCBA to the
Controller PCBA
J4 Bi-directional Serial Port. Connects the Printer Controller PCBA to a host system
operating in either the serial RS–232 or RS–422 communication modes.
J5 Label Present Sensor Connector. Used when the peel and present option is installed.
J6 Printhead Connector. Provides connection for control and data signals to and from
the printhead. Also provides power supply voltages to the printhead.
J7 Media Sensor Connector. Connects the Printer Controller PCBA to the media
transmissive and reflective edge sensors.
J8 Cutter Interface Connector. Provides voltage and control signals to the optional
media cutter.
J9 Ribbon Saver Interface Connector. Provides control signals and voltages for the
optional ribbon saver.
J10 Reserved
J11 Ribbon Sensor Connector. Connects the Printer Controller PCBA to the ribbon
motion sensor.
J12 Printhead Power Connector. Provides low impedance supply voltages to the
printhead cable.
J13 I/O Expansion Port. Allows the addition of an optional Parallel or Twinax/Coax host
interface PCBA
J14 General Purpose I/O Connector. Provides four general purpose I/O bits and supply voltages.
J15 Reserved
J17 Power Supply Interface. Provides voltages and logic ground from the power supply.
J18 Power Supply Control Interface. Provides control signals to the power supply.
J19 Memory Cartridge Interface. Provides an interface for plugging in memory
cartridges. The interface will accept memory application cartridges (flash) or fixed
font cartridges (one-time-programmable EPROMs). Cartridges may be inserted or
removed with power on.
J20 Reserved
8–14 Circuit Description