Star Micronics TSP400 technical manual Sensor Adjustment

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SPECIFICATIONS AND OPERATION

5.Sensor Adjustment

There are three different sensors: the transmissive sensor (label start-position detector), the black-mark sensor, and the paper-out sensor. Adjustment procedures are described below. First note the following general points.

The transmissive sensor level requires precise setting. Because transmission rates vary widely among different types of label paper, we recommend that the sensor be readjusted each time the user changes to a different paper type.

Because black marks are likely to be similar across different paper types, the black-mark reflective sensor may not require readjustment each time the paper type is changed. But you will still have to adjust it if the new paper has a different consistency or uses a different black-mark density, or if the paper-feed routing is changed.

In most generally not necessary to adjust the paper-out sensor.

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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