Abgleich Etikettenlichtschranke:
In der Etikettenlichtschranke sind 2 Sensoren integriert:
-für die Betriebsart Durchlicht ein Durchlicht-Optokoppler
-für die Betriebsart Reflex ein Reflex-Optokoppler.
Der Abgleich der Betriebsarten ist wie folgt vorzunehmen:
1.Gehäuse demontieren.
2.Drucker einschalten.
Netzspannung an spannungs- führenden Teilen!
3.Trägerstreifen ohne Etikett in Lichtschranke einle- gen.
4.Durchlichtabgleich:
Spannung am Meßpunkt MP2 messen und bei
Bedarf mit Regler R 36 auf 2,1 V - 2,3 V einstellen.
Kontrollmessungen durchführen: |
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Lichtschranke leer: | U < 0,5 V |
Etikett+Träger in Lichtschranke: | U > 4,0 V |
5.Reflexabgleich:
Spannung am Meßpunkt MP4 messen und bei Bedarf mit Regler R 27 auf 0,5 V einstellen.
6.Gehäuse montieren.
Adjusting the Label Edge Sensor :
The label edge sensor contains two photocells :
-a "see-through" optocoupler for the Gap mode; and
-a reflective optocoupler for the Bottom-Reflect mode.
Adjust the label edge sensor as follows :
1.Disassemble the chassis.
2.Switch the printer on.
Caution | Danger of electrical shock from | |
exposedcomponents! | ||
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3.Insert the silicon liner without a label into the sensor.
4.For "see-through" (Gap sensor) :
Measure voltage at MP2 and adjust to 2.1
Perform a test measuring : |
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Sensorempty: | U < 0.5 V |
Label and silicon liner in sensor: | U > 4.0 V |
5.For Reflective sensor :
With the media removed, measure voltage at MP4 and adjust to .5 V using the potentiometer R27 if necessary.
6.Reassemble chassis.
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| MP5 | |||
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| C5 | C6 |
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| R22 R23 R26 | R44 |
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| C24 |
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| R25 | R39 R40 |
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| R28 |
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| R24 | LED2 |
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| U7 |
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| C19 | R27 |
| Q2 | Q3 |
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| R32 |
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| R11 | C9 |
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| R1 |
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| U17 |
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| MP3 MP4 MP2 |
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| C1 | R12 |
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| F10 |
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| U3 |
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| C29 |
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| R18 |
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| R42 |
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| R37 |
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| C4 |
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| R19 |
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| C21 | C15 |
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| F1 |
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| R21 |
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| C26 |
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| F2 |
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| U4 | C16 | U12 |
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| MP1 |
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| R16 |
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| LED1 |
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| R47 | R4 R9 |
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| MP1 | MP2, 3, 4 |
Bild20 | Meßpunkte und Regler | Figure 20 Measuring points and potentiometers |
5.9 Prüfung Spendesensor
1.Gehäuse des Druckers demontieren.
2.Option Spendesensor montieren.
3.Gerät einschalten.
Netzspannung an spannungs- führenden Teilen!
4. | Spannung an MP 1 (Bild 20) messen : | |
| Etikett in Spendeposition: | U > 3,5V |
| kein Etikett in Spendeposition: | U < 1V |
5. | Gehäuse montieren. |
|
5.9Testing the Present Sensor
1.Disassemble the chassis of the printer.
2.Mount the optional present sensor.
3.Switch the printer on.
Caution | Danger of electrical shock from | |
exposedcomponents! | ||
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4.Measure the voltage at MP1 (Figure 20) :
Label in present position : | U > 3.5V |
No label : | U < 1V |
5.Reassemble the chassis.
3 7