Samsung 275C - SRP Two-color Dot-matrix Printer Servisní příručka stáhnout pdf (Strana 41)

Rev. 2.00

- 41 -

SRP-275

3-3-10 Printer Head Specification

Item Description Remark

Model N09-15KS

Type : Ballistic type (Free fight)

Number of wire : 9pins

Dot pitch : 0.352 (1/72”)

Specification

Dot wire diameter : 0.3mm (0.01”)

Resistance : 18Ω ± 1.5Ω (at 20℃)

Inductance : 4.2mH ± 10% open circuit (at 1000Hz, 1VRMS)

Temperature rate : 155℃

Solenoid coil

Insulation resistance : 20MΩ with 500V/DC

Type : Constant voltage

Voltage : 24VDC±5% (Normal) (At printer head)

Current : 1.3A

Driver circuit

Pulse : 330μsec (Head on time)

Platen Gap : 0.40 ~ 0.50mm

Max. frequency : 1500Hz

Performance

Forms capability : Original + 2 copies

Max. operating temp. : 90℃

Temperature

Max. transient temp. : 110℃ ,For 5 minutes (25% duty)

3-3-11 Printer Head Thermistor Specification

Item Description Remark

Type NTC, F-CHIP FF103J

Electronic

Characteristics

• Resistance R25: 10㏀ ± 5Ω (At 25℃)

• β Value : 3950K ± 2

Temperature strage

–30℃ ~ 125℃

Rx formula Exp( -4.864010225 + 4344.5751119/T - 13183560.21/T^3)

T : Absolute temperature

3-3-12 PF(Paper Feed) Motor Specification

Item Description Remark

Model PM42L-048-YKG3 (MINEBEA ELECTRONICS Co.Ltd) NMB

Voltage 24VDC±10%

Current 500mA / Phase (Peak)

Resistance

7.4Ω ± 5% at 25℃

Step angle 7.5°

Pull out torque 800 PPS 590 g·cm

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 135 136

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Samsung 275C - SRP Two-color Dot-matrix Printer Servisní příručka Strana 41

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