IEEE-1284 Parallel Communication Problem

SRP-350/352plusA&C

7-8 IEEE-1284 Parallel Communication Problem

IEEE-1284

Problem

Forward Mode

Failure?

1.Check the Control Line (/CS_P)

2.Check the 1284 Control Line and Status Line

3.Check the Signal of ICs (U1,U3,U4,U5)

4.Check the 1284 Cable whether it is open or shot

5.Check the related Circuit & Pattern on I/F PBA

End

Rev. 2.01

- 58 -

Page 58

Image 58

BIXOLON service manual IEEE-1284 Parallel Communication Problem, SRP-350/352plusA&C

Contents

SRP-350/352plusA&C Service ManualThermal Printer Rev Table of Contents SRP-350/352plusA&C 7. Troubleshooting 5. Disassembly and Assembly6. Adjustments and Maintenance 4. Hardware 1. Precaution Segment 1-1 Safety Precautions 1-2 Servicing Precaution a Remove or reinstall any component or assembly 1-4 Operational Precautions 1-3 Precaution for Electrostatically Sensitive Devices ESDs1. Some semiconductor solid state devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices ESDs examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damaged caused by static electricity 2-1-1 AC Adapter Installation 2. Installation and Operation2-1 Installation 2-1-2 Interface Cable Installation 2-1-5 Wall Mount Installation SRP-350/352plusA&C 2-2-1 Setting the DIP switches 2-2 Operation2-2-2 Setting the DIP switch RS-232C Serial Interface 2-2-3 Setting the DIP switch IEEE1284 Parallel, USB Interface ※ Auto Cutter Enable / Disable selection 2-2-4 Hexadecimal Dumping 2-2-5 The self Test Mode Figure 3-13 The Self-Test Sheet 2-2-6 Setting the Memory Switches SRP-350/352plusA&C 3-1-1 Printer Dimensions mm 3. Product Specifications3-1 Appearance 3-1-2 AC Adapter Dimensions mm 3-1-3 Feature Locations-SRP-350/352plusA/C TYPE SRP-350/352plusCOP IEEE1284 Parallel Communication 3-2 General SpecificationsSRP-350/352plusCOS RS-232 Serial Communication SRP-350/352plusCO USB Communication 3-3-2 Character Specification 3-3 Thermal Printer Specifications3-3-1 Printer Specification Description ※ Note 3-3-3 Paper Specification3-3-4 Reliability and Environment Specification PD 160R 3-3-6 TPH Thermal Printer Head Specification 1 180dpi 3-3-5 Printable Area 3-3-7 Other Component Specification 3-4-1 SMPS Switching Mode Power Supply Specification 3-4 SMPS Specifications3-4-2 SMPS Output Connector 3-5-1 RS-232C Serial Interface 3-5-1a Specification 3-5 Interface Specifications3-5-1b RS-232C I/F Cable Printer 3-5-1d Signal Description3-5-1c Cable Connection Host 3-5-1f S/W Flow Control 2-5-2a Forward Mode Specification Compatibility mode3-5-1e H/W Flow Control ※ Note Refer to the Operation Manual about XON/XOFF flow control nAck 3-5-2c Signal Specification Compatibility/Nibble/Byte mode3-5-2c IEEE1284 I/F Cable Busy 3-5-3 USB2.0 Interface 3-5-3a Specification3-5-3b Signal Description 3-5-3c Cable 3-5-4d Construction ※ Note Minimum conductor construction must be stranded tinned copper Series A ConnectorsSeries B Connectors From the 3-6-1 Drawer Cable 3-6 Cash Drawer Specifications※ Note +24V is always output through pin 4 during power on 3-6-2 Cable Connection 4. Hardware 4-1 Wiring DiagramFigure 4-1 Board Wiring Diagram 4-2 Block Diagram Figure 4-2 Block Diagram 4 CPU, Flesh, SRAM, Reset Voltage +3.3V 4-3 Special Circuit Descriptions4-3-1 Power Circuit VOLTAGE Figure 4-4 Reset Block Diagram Figure 4-5 Reset Waveform 4-3-2 RESET CircuitReset signal is signal in order to start-up CPU under Power-on ASM811 REUSF-T 4-3-3 Buzzer and Cash Drawer Circuits 1 Buzzer Driving Circuit 2 Cash Drawer Driving Circuit 4-3-5 RS-232C Communication Block Diagram 4-3-4 I/F PBA Detect Block DiagramUPD70F3107 4-3-6 Parallel Communication Block Diagram 4-3-7 USB Communication Block Diagram 4-3-8 DIP Switch Circuit STROBE1 DATA#1,2LATCH 4-3-9 Thermal Printer Head Circuit 1 Scrw 2 Brkt Dip Switch 3 Case Lower 5. Disassembly and Assembly5-1 Case lower block 4 Foot Rubber 5 PCB Serial Parallel 8 Screw 1 Screw 2 Brkt PCB6 Main PCB Screw 1.Remove the two screws 5-2 Case Upper block1.Push the button to open the Cove Open. 2.Remove the four screws 3.Remove the three screws. 4.Separate the Manual cutter from 4 Brkt-Hook 3 Screw Roller Platen Assembly1 Spring Hook 1.Remove the E-Ring. 2.Separate the Spring tension, the 4 Screw 5-3 Frame block3 Cover Housing 1 Screw 1.Remove the screw 4 Screw 7 ConnectorSpring TPH 5.Separate the Connector from the Heat-sink 2 Heatsink Assy 1 Screw Washer 1 Screw 2 Frame Main 3 Brkt PCB 4 Power SwitchFrame Main Slip 6-1 Adjustment 6. Adjustments and Maintenance6-1-1 Remaining Roll Paper Adjustment 6-1-2 Paper Jam 6-2 Maintenance ※ Caution Turn off the printer power before cleaning 7-1 Power Problem 7. TroubleshootingOk? On SMPS 7-2 System Problem 7-3 Panel PBA and Sensor Problem 7-4 Thermal Printer Head and Feed Motor Problem 7-5 Auto Cutter and Drawer Problem Input Ok? 7-6 Dip S/W and I/F PBA Select ProblemSelect Ok? 7-7 RS-232C Serial Communication Problem 7-8 IEEE-1284 Parallel Communication Problem Failure? 7-9 USB2.0 Communication ProblemMain PBA I/F Reverse Mode