Star Micronics MP111MP-24G-A, MP115MP-24G-A operation manual Number of character per line Dot/chara

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(2)Pre-fire

This operation applies minute vibrations to the needle wire to allow for its smooth movement as printer warmup. Pre-fire is performed under the following conditions. The energizing time is too short to allow for the printing action to occur.

Operating time	When power is turned ON.		Number of times	32 Times

Frequency	900	Hz	Power supply voltage	DC24V ± 2.4 V

Energizing time	175	± 5 ∝ s

(3)Print Duty

This print head is not equipped with a head temperature detector. Therefore, use the printer within the maxi- mum printing ratio shown below. If you print exceeding this printing ratio, you can damage the printer.

1140

Print Ratio N (dot /sec)

Ambient Temperature 25° C

Ambient Temperature 50° C

830

21.6 V

24.0 V

26.4 V

Fig. 3-12 Print duty

The figure above shows the print duty that is possible with continuous printing when each wire is used an equivalent number of times. In this case, you can calculate the possible dot count for D per character using the following numerical formula.

N (Print Ratio) x T (Print time per line includes the time of the paper feed [sec])

L (number of character per line)

[dot/chara]

– 16 –

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Contents MP111MP-24G-A MP115MP-24G-A Page Contents General Description Principle of Operation ConfigurationConstruction OtherMP111MP External view MP115MP External view Printing Specifications General SpecificationsDetails of Character Dimentions Paper spec. & Print area Paper SpecificationsMP111 Ink Ribbon SpecificationsMP115 CR Motor + CMN VH Connector SpecificationsConnector connections Half font Forward printing Print TimingPrinting Timing ChartRelease action Transistor’s turn off delay time td 2 ∝ s Print Head SpecificationsTR1 Number of character per line Dot/chara 13 Print duty specific wires 14 Current waveform of the motor CR Motor SpecificationsTR2 16 Drive circuit of paper feed motor example Paper Feed Motor SpecificationsMP115MP only Ribbon Shift Solenoid RS-SOL Specifications19 Circuit of timing signal 1 example Timing Signal Detector SpecificationsPaper-out Detector PE-sig Specifications Home Position Detector HP-sig SpecificationsDimension and Weight Ribbon Position Detector RS-sig Specifications MP115MP only24 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 SP2 InstallationInstallation space example unit mm Printer installation example unit mm Page Printer installation Operational Notes Power ON/OFF NoteOther Notes Carriage Motor Protection Method Against Mechanical Errors24 V Line Power Supply Capacity5 V Line Paper Guide Option OptionsDistributed by