GP2TC2 - Sharp

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. Under
the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any
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permission of SHARP. Express written permission is also required before any use of this publication
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●Contact and consult with a SHARP representative if there are any questions about the contents of this
publication.
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