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

(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]

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