Service manual

SRP-150
Rev. 1.02
- 18 -
3-3-5 Printable Area
a
d c e
Figure 3-3-5. Printable Area
Item Description Remark
a 58+0,-1mm(2.28” ±0.039)
b 1.5 (0.059” )
c 48±0.2mm(1.889” ±0.0078)
d 4.5±0.8mm(0.177” ±0.0314)
e 4.5±0.8mm
Dots 384
Font 12X24 42 Character
3-3-6 TPH (Thermal Printer Head) Specification
Item Description Remark
Model SAJ048-8A442(AOI Electronics)
Heat Element Structure 2 Heaters / Dot
Number of Heat Element 384 Dots
Heat Element Pitch 0.125mm/dot, 8Dot/mm
Print Width 48±0.2mm
Average Resistance 176Ω ± 4%
Thermister
1) Resistance R25 : 30kΩ ± 5% (At 25℃)
2) B Value : 3950K ± 2%
3) Temperature : - 40℃ ~ +125℃
Item Maximum Unit Conditions
Print Cycle (S.L.T.) 1.25 ml/Line
Supply Energy 0.20 mJ/Dot
Tsu b=2 5℃
Supply Voltage 8.5V V
Substrate Temperature 65 ℃ Thermistor Temperature
Number of heating dots at same time 384 Dots
Logic Supply Voltage (Vdd) 2.75~5.25 V Include Peak Voltage of Vdd
Logic input Voltage (Vin) -0.5 ~ Vdd+0.5 V
Table 3-3-6. TPH Maximum Condition (At 25℃)
b