Citizen Systems CLP-6002, CLP-6001 user manual 3 RS-232C loopback test, Fig. Loopback test

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6.2.3RS-232C loopback test

After connector wiring as shown in the figure, the test mode is turned on. The printer will receive data that has been transmitted by printer itself and the test of receiving and transmitting data will be performed.

RS-232C test

Fig. Loopback test

6-8

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Contents CLP-6001/6002 FCC Compliance Statement For American Users EMI Compliance Statement For Canadian Users Important Safety Instructions Page Safety Signs Page General Precautions Precautions When Installing the Printer Chapters in This Manual Table of Contents Chapter Troubleshooting Xii Chapter Setup Confirmation of Carton Contents Front View Part Names and FunctionsInside View Names and functions of each part Side View Connection to Power Connection to a Computer Chapter Control Panel Control Panel Normal Operating Mode LCD/LED Indications and Adjustment ControlsSelf-Test Mode Printer Setup ModeMode item Indication Default values System Maintenance ModeVoltage setting mode Chapter Paper and Ribbon Kinds of Paper Specification of Label and TagPaper specification Units for position and length Reference line and points Ribbon Paper Setting Roll paper Reference side Notch for alignment Ribbon Setting Print Head Offset Adjustments Print head position for label Upper frame window Head pressure adjust-screw Ribbon width Ribbon winding Ribbon feed Tension Section Ribbon Tension AdjustmentsExterior view and part names Paper Detector Adjustments for CLP-6001 onlyHow to operate adjustable sensor Page Troubleshooting Error descriptions and indications Error MessagesCmnd Error indications and corrective actions Page − − Power Troubleshooting Paper Feed Troubleshooting Ribbon Feed Troubleshooting Print Troubleshooting Interface Troubleshooting Page Chapter Options Auto-Cutter Unit Peeler Unit Adjustable SensorPcmcia Memory Card Page Chapter Specifications Postnet Main SpecificationsPage LCD Description Interface System configurationSerial interface Specification of interfaceFig. Loopback test 3 RS-232C loopback testFig. Buffer in use 4 RS-232C protocolPage Interface pin assignment Parallel interface pin assignment table STX + L With print Without print Outline of Command SystemExample of Connection to a Computer Tear-Off Function Tear-off when printingTurning Tear ON/OFF Paper is fed to the tear position Tear-off when feedingTear-off and type of data Cut position adjustmentsWhen fnnn command is executed while tear-off is OFF Priority order