Star Micronics TSP400 technical manual Chapter Parts Replacement and Related Adjustments

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CHAPTER 3

PARTS REPLACEMENT AND RELATED ADJUSTMENTS

This chapter describes disassembly and reassembly procedures.

Please take note of the following.

	1.	ALWAYS disconnect the power cord from the AC outlet before beginning a disassembly or reassembly
		procedure.
	2.	Except where otherwise stated, the reassembly procedure is the reverse of the disassembly procedure.

	3.	Coat screw heads with locking sealant after completion of reassembly.	3
	4.	Refer to Chapter 4 Section 2 for important information about lubrication requirements.	3
	4.

Note : The printer has no adjustable parts.

1.	Upper Casing Unit	35
2.	Control-Panel Board	36
3.	Printer Mechanism	37
4.	Main PCB, Interface PCB	38
5.	Power Unit	39
6.	Fuse	39
7.	Printhead Unit	40
8.	Feed Motor Assembly	40
9.	Detectors	41
10.	Label sensor	41

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Contents TSP400 Series Page Introduction Page Chapter Specifications and Operation Specifications and Operation OCR-B General SpecificationsInternal Configuration TSP412D External Appearance and Internal ConfigurationDIP-Switch Settings Status of printer power Baud Print-Density Adjustment Sensor Adjustment Specifications and Operation Setting Memory Switches from the Control Panel HEX Dump Test PrintPage/Line Mode Switch Exposing the Peripheral Unit Connector Changing the Interface Board Specifications and Operation Chapter Theory of Operation Theory of Operation 24V Block DiagramControl Panel Interface Main and Interface PCBs2. RS422A interface Parallel Interface PCB Main PCB Editing Editing and PrintingTiming Chart Feed-Motor Drive Circuit Motor Control by Phase 1-2 ExcitationPower-On Reset Circuit 11 Equivalence Circuit for Voltage Detecting IC +5V Line Voltage Detector CircuitThermal Head Printer MechanismPaper-Feed Mechanism 15 Paper-Out Detector Detectors19 Head-Up Detector Page Chapter Parts Replacement and Related Adjustments Parts Replacement TSP412D Upper Casing UnitControl-Panel Board Printer Mechanism Main PCB, Interface PCB Fuse Power UnitPrinthead unit Feed Motor AssemblyLabel sensor DetectorsParts Replacement Chapter Maintenance and Lubrication Maintenance and Lubrication Cleaning MaintenanceChecks Lubricants LubricationApplication Method Lubrication PointsLubrication Points Maintenance and Lubrication Chapter Parts List Disassembly Drawing Printer AssemblyTSP442D Printer Assembly Parts ListScrew TAT Printer Mechanism Assembly Oiless Bushing F4X7X3 Printer MechanismRS-232C Interface Type Connector Wiring DiagramRS422A I/F Board Control Board Parallel Interface Type Main Logic Board Circuit DiagramSide a Side D Side C Main Logic Board Chip Resistor 20 K-OHM 1/10W CN8 RS232C Interface RS232C Interface Board RS422A Interface RS422A Interface Board CentronicsInterface Centronics Interface Board Control Panel Board Control Panel Board Label Sensor Board Paper-Out Detector BoardPaper-Out Detector Transmissive SensorPage Distributed by