Star Micronics MP115MP-24G-A, MP111MP-24G-A operation manual TR1

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We employ a zener diode to control spike voltages that occur when the transistor is turned OFF. The following figure shows and example of the drive circuit. With this circuit, we use a transistor equipped with a zener diode (zener voltage 60 + 10/-5V) between the base and collector.

TR1	2SD2041 (ROHM)

R1	1K Ω
R2	330Ω
VH	23V + TR1 for VCE (sat) = 24 V

HV (24 V)

Fig. 3-11 Example of Print Solenoid Drive Circuit

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Contents MP111MP-24G-A MP115MP-24G-A Page Contents General Description Other ConfigurationConstruction Principle of OperationMP111MP External view MP115MP External view General Specifications Printing SpecificationsDetails of Character Dimentions Paper Specifications Paper spec. & Print areaInk Ribbon Specifications MP111MP115 Connector Specifications CR Motor + CMN VHConnector connections Print Timing Half font Forward printingTiming Chart PrintingRelease action Print Head Specifications Transistor’s turn off delay time td 2 ∝ sTR1 Number of character per line Dot/chara 13 Print duty specific wires CR Motor Specifications 14 Current waveform of the motorTR2 Paper Feed Motor Specifications 16 Drive circuit of paper feed motor exampleRibbon Shift Solenoid RS-SOL Specifications MP115MP onlyTiming Signal Detector Specifications 19 Circuit of timing signal 1 exampleHome Position Detector HP-sig Specifications Paper-out Detector PE-sig SpecificationsRibbon Position Detector RS-sig Specifications MP115MP only Dimension and Weight24 MP111MP External dimension unit mm 25 MP115MP External dimension unit mm Reliability Specifications Setting the Ribbon Cartridge Setting the Paper Setting the PaperRemoving the Paper Installation SP2Installation space example unit mm Printer installation example unit mm Page Printer installation Power ON/OFF Note Operational NotesCarriage Motor Protection Method Against Mechanical Errors Other NotesPower Supply Capacity 24 V Line5 V Line Options Paper Guide OptionDistributed by