Star Micronics MP111MP-24G-A - Manual (Page 27)

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3.14 Ribbon Position Detector (RS-sig) Specifications (MP115MP only)
The ribbon position is made up by a mechanical switch.
When the ribbon is at the position for printing of black characters, the switch is ON.
R1 10 k
Ω
R2 15 k
Ω
C1 0.022
µ
F
Fig. 3-23 Example of ribbon position detection circuit
In order to improve the reliability, we recommend that the RS-sig is detected while the motor is off.
3.15 Dimension and Weight
See Fig on the next page for external dimension of the printer mechanism.
Weight of printer mechanism: MP111MP, approx. 410 g (excludes the ribbon cartridge)
MP115MP, approx. 450 g (excludes the ribbon cartridge)
Weight of ink ribbon cartridge: approx. 24 g