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| KF1502-GT10A Printheads Compact low voltage thick film thermal printhead (6dots / mm) KF1502-GT10A These compact, lightweight printheads have low power requirements and are intended for ECR and mobile applications. Drawing 7.2V, a maximum print speed of 2 inches per second is possible. !Applications ECR printers Hand-held printers !Features 1) A wide range of power supply voltage, from 4.2V-8.5V, can be used to drive the printhead. This gives the flexibility for use with printers designed to operate with power from various battery configurations. 2) To allow the design of compact printers for use in calculators and other mobile applications, the basic specifications of the unit have been standardized. This gives engineers greater freedom to develop mechanical designs. 3) One rank resistance value of 210 4% eliminates the inconvenience of rank selection. !External dimensions (Units : mm) 54 48 (Effective Print Width) 100.3 1.40.3 (1.1) Dot #288 Dot #1 (10) 1.0mmx14=14.0mm Connector M No.15 No.1 ax . 8. 0 1/4 KF1502-GT10A Printheads !Equivalent circuit VH GND DOT #288 DOT #1 VDD 2 1 STB2 STB1 LAT LATCH REGISTER DI CLK SHIFT REGISTER N.C. Fig.1 !Pin assignments No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Circuit VH VH LAT N.C. GND GND STB1 VDD STB2 GND GND CLK DI VH VH 2/4 KF1502-GT10A Printheads !Timing chart tw CLK CLOCK (CLK) t setup DI DATA IN (DI) "High":BLACK "Low" :WHITE DATA OUT (DO) "High":BLACK "Low" :WHITE t hold DI td DO t setup LAT LATCH (LAT) "High":HOLD "Low" :THROUGH tw LAT STROBE (STB) t hold LAT t setup STB tdo DRIVER OUT tdo Fig.2 !Characteristics Parameter Effective printing width Dot pitch Total dot number Average resistance value Applied voltage Applied power Print cycle Pulse width Maximum number of dots energized simultaneously Maximum clock frequency Maximum roller diameter Running life / pulse life Operating temperature Symbol - - - Rave VH PO SLT TON - - - - - Typical 48.096 0.167 288 210 7.2 0.14 2.5 1.68 144 4 8.0 30/5x10 5~45 7 Unit mm mm dots V W/dot ms ms dots MHz mm km/pulses C 3/4 KF1502-GT10A Printheads !Electrical characteristic curves 0.8 Paper : KF50-HDA (OJI) 0.7 OPTICAL DENSITY 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 ENERGY (mJ/dot) 0.8 SLT : 2.50ms/line 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.05 0.10 0.15 0.20 0.25 0.30 0.6 ENERGY (mJ/dot) 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5 0.0 0.00 0 0 1 2 3 4 5 SCANNING LINE TIME (ms/line) ENERGY (mJ/dot) SCANNING LINE TIME (ms/line) Fig.3 Adaptive speed chart Fig.4 Representative density curve Fig.5 Maximum energy curve 180 160 140 RESISTANCE : (k) 120 100 80 60 40 20 0 -20 -10 0 10 20 30 40 50 60 70 TEMPERATURE : (C) Fig.6 Thermistor curve 4/4 |
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