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參數(shù)資料
| 型號(hào)： | 09-ELM205-ST |
| 英文描述： | PRINTER MECH. EASY LOAD |
| 中文描述： | 打印機(jī)機(jī)械。易裝卸設(shè)備 |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大?。?/td> | 160K |
| 代理商： | 09-ELM205-ST |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)當(dāng)前第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
ELM 205
-
Technical reference -
Rev. G -
13
Advanced Printing Systems
6.
Sensors
6.1.
Door open
In order to optimize and decrease the number of elements of the ELM 205, the opto sensor
performs dual functions - door open and end of paper detection. The shape and distance from
the opto sensor to the paper is designed in a way that as soon as the door is opened, the distance
between the paper and the sensor increases, and this causes the end of paper sensor is to
trigger.
6.2.
End of paper sensor
ELM 205 has an end of paper sensor achieved by a photo-transistor. Arrange the circuitry so
that no energy is applied to the head when there is no paper. If the head is energized when there
is no paper and the head is in the down position, then both roller and head may be strongly
damaged.
General specifications:
ITEM
Symbol
CONDITIONS
Min
Typ
Max
Unit
Forward current
photodiode
IF
VF = 5v± 5%
-
20
30
mA
Reverse current
IR
Vr= 5V
-
10
uA
Output dark current
ICEO
VCE= 10V
-
0.2
uA
Light current
IL
VCE = 5V
IF = 20mA
90
-
660
uA
Time
TR
VCE = 2 V
IC = 0.1 mA
RL = 1K
-
30
-
us
Fall time
TF
-
25
-
us
One possible interfacing is as follows:
to Analog CPU Port
Vpaper < 2.5v
V no paper > 4.5v
ELM 205
27 K
+5v
180 R
+5v
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