GP2TC2 GP2TC2 Color Toner Density (Adhesive Volume) Sensor by Diffusive/ Mirror Reflection Method ■ Features ■ Outline Dimensions Unit V mA V °C °C ■ Recommend Operating Conditions Parameter Supply voltage Detection distance range Notice Symbol VCC L Rating 4.5 to 5.5 11.0 to 11.5 7.5 0.3+0.1 −0 2-6.25 12.5 1 8 (5) L L 5 .1 +0 0 0− . φ3 10 18 8 10 23 3 10 10 10 9.5MAX. 10 5 3MAX. Center of reflective object 5 (Ta=25°C, Vcc=5V) Symbol Rating −0.3 to 7 VCC IF 50 −0.3 to Vcc +0.3 VO Topr 0 to +60 −20 to +70 Tstg Burr 0.6MAX. 73 R1.5 ■ Absolute Maximum Ratings Parameter Operating voltage LED current Output terminal voltage Operating termperature Storage temperature Optical sensor 0.8 1. Full-color copiers 2. Color LBPs MAX. ±0.5 3.5MAX. (6) ■ Applications Burr 0.6 Connector Made by MOLEX 53324-0510 80 °) (45 °) (75 1. Adopted diffusive reflection and mirror reflection method Color toner detection : diffusive reflection method Black toner detection : mirror reflection method 2. Analog output according to amount of reflective light (adhesive volume of toner) 3. 2 system output : adhesive volume of black toner adhesive volume of color toner 4. Detection range of toner density (Y, M, C : 0 to 1.0mg/cm2) (K : 0 to 0.6mg/cm2) 5. High resolution (0.1mg/cm2) 6. Output can be adjusted by control of LED current (Unit : mm) Unit V mm 22 1 Device mount area 2 PCB pattern prohibited area Reflective object( 16mm) 3 4 5 VCC GND VO2 VO1 LED ❈ ( ) : Reference dimensions ❈ Unspecified tolerance : ±0.3mm ❈ Size L in the diagram is referred to recommended service conditions. ❈ Sensor optical portion clearance : 0.3mm MAX. In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. Internet Internet address for Electronic Components Group http://www.sharp.co.jp/ecg/ GP2TC2 ■ Electro-optical Characteristics Symbol VO1A VO2A VO10 VO20 Parameter Output voltage Displacement of output voltage Rise time Fall time Consumption current Reflective object A (VO1A:IFM=15mA, VO2A:IFM=20mA) LED current IFM=0mA MIN. 0.73 2.12 0.2 0.1 TYP. 1.17 2.81 0.6 0.7 (Ta=25°C, VCC=5V) MAX. Unit V 1.61 V 3.50 V 1.0 V 1.3 ∆VO1BA Displacement of output voltage VO1 when reflective object is changed from A to B (IFM=15mA) 1.56 1.74 1.92 V ∆VO2C0 ∆VO2C0=VO2C−VO20 (VO2C:Reflective object C, IFM=20mA) 0.39 0.45 0.51 V 0.53 2.02 3.75 0.19 − − − 0.57 2.11 4.05 0.21 70 70 4 0.61 2.20 4.35 0.23 300 300 12 V V − − µs µs mA ∆VO1A0 ∆VO2A0 ∆VO12 ∆VO22 tr tf ICC Displacement of output voltage Conditions VO1A−VO10 VO2A−VO20 ∆VO12= (∆VO1BA+∆VO1A0) / ∆VO1A0, ∆VO22=∆VO2C0 / ∆VO2A0 Reflective object C (Munsell N2 no gloss(Reflectivity 3.1%)) (VO1A : IFM=15mA, VO2A : IFM=20mA) Consumption current at LED current IFM=0mA Fig.1 Internal Block Diagram VCC(5V) VR1 Fig.2 Schematic measurement block diagram Sensor VCC PD1 VO1(Y,M,C) I/V converter1 PD1 VO1 LED LED PD2 VO2 AMP1 5V VR2 PD2 VO2(K) I/V converter2 V GND AMP2 Reflective object VCC Infrared emitting diode LED GND V GP2TC2 Fig.4 Response Time Fig.3 LED lighting condition ON IFM Input (LED current) OFF tr t=2ms t=10ms tf 90% Output (VO1,VO2) 10% Fig.5 Measurement Condition 1 11.25 5 8 Reflective object A, B, C 23 Reflective object A : Munsell N4.5 no gloss (reflectivity 15.6%) Reflective object B : Munsell N7.75 no gloss (reflectivity 54.8%) Reflective object C : Munsell N2 no gloss (reflectivity 3.1%) ■ Example of application 1. Apply VCC=5V and measure VO10 at VO1, VO20 at VO2. 2. In order to stabilize output voltage measure 3. to 5. on the LED lighting condition shown in Fig.3 for example. 3. Measure the output voltage VO1 and VO2 and adjust IFM in order to fix ∆VO1 and ∆VO21 (determine value by your actual application). After the adjustment, memorize the values, VO1, VO2 and IFM, (Adjust IFM for VO1 and VO2 each, and memorize them.) (If there are the initial memorized values, VO1, VO2 and IFM, measure VO1 and VO2 at memorized IFM. If there are difference between the measured values and memorized values adjust IFM to let VO1 and VO2 be initial values.) 4. Attach the color toner and measure the output voltage at VO1 (IFM at the value memorized at 3.). Determine the ouput voltage difference ∆VO1 between the measured value and memorized value VO1 at 3, and adjust the attached color toner amount. 5. Attach the black toner and measure the output voltage at VO2 (IFM at the value memorized at 3.). Determine the ouput voltage difference ∆VO2 between the measured value and memorized value VO2 at 3, and adjust the attached black toner amount. 6. After the measurement, set IFM=0mA and turn off the LED. 7. To measure them again, start from 1. Note VO10 : Output voltage at IFM=0mA VO20 : Output voltage at IFM=0mA VO1 : VO1 terminal ouput voltage at no toner VO2 : VO2 terminal ouput voltage at no toner ∆VO11 : VO1−VO10 ∆VO21 : VO2−VO20 ∆VO1 : Output voltage when black toner is attached−VO1 ∆VO2 : Output voltage when black toner is attached−VO2 IFM : LED current GP2TC2 Fig.6 Output Voltage vs. Reflectivity of Reflective Objects VO1 3.0 ∆VO1BA 2.0 1.0 ∆VO1A0 VO2 4.0 Output voltage VO2 (V) 4.0 Output voltage VO1 (V) Fig.7 Output Voltage vs. Reflectivity of Reflective Objects 3.0 2.0 ∆VO2AO VO2A 1.0 ∆VO2C0 VO1A VO10 VO20 0 0 A B Reflectivity of reflective object (%) C A Reflectivity of reflective object (%) Application Circuits NOTICE ●The circuit application examples in this publication are provided to explain representative applications of SHARP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHARP's devices. ●Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents described herein at any time without notice in order to improve design or reliability. Manufacturing locations are also subject to change without notice. ●Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used specified in the relevant specification sheet nor meet the following conditions: (i) The devices in this publication are designed for use in general electronic equipment designs such as: --- Personal computers --- Office automation equipment --- Telecommunication equipment [terminal] --- Test and measurement equipment --- Industrial control --- Audio visual equipment --- Consumer electronics (ii)Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when SHARP devices are used for or in connection with equipment that requires higher reliability such as: --- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.) --- Traffic signals --- Gas leakage sensor breakers --- Alarm equipment --- Various safety devices, etc. (iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of reliability and safety such as: --- Space applications --- Telecommunication equipment [trunk lines] --- Nuclear power control equipment --- Medical and other life support equipment (e.g., scuba). ●Contact a SHARP representative in advance when intending to use SHARP devices for any "specific" applications other than those recommended by SHARP or when it is unclear which category mentioned above controls the intended use. ●If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade Control Law of Japan, it is necessary to obtain approval to export such SHARP devices. ●This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. 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