Service manual

09/09 Rev. 5.02-02 SERVICE MANUAL Service Electronics
AP 4.4 – AP 5.4 – AP 7.t
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Ribbon sensor 1. Start the printer in production mode and call parameter SERVICE FUNCTION >
Sensor Adjust
.
2. Press the Online button repeatedly, until the following is displayed:
The left value is the control value for the LED current (Default: 128).
The right value is the sensor value read back (here: 6).
3. Turn the ribbon unwinding mandrel by hand and watch the read back value.
Sensor uncovered: the value should match the range 5..7.
Sensor covered: the value should match the range 220..255.
If the value doesn´t match this range: modify the control value by pressing the
Cut or Feed button.
4. Press the Online button to save the setting.
5. Press the Esc button to exit the parameter.
With this, the ribbon sensor is set.
Printhead
sensor
1. Start the printer in production mode and call parameter
SERVICE FUNCTION >
Sensor Adjust
.
2. Press the Online button repeatedly, until the following is displayed:
The left value is the control value for the LED current (Default: 128).
The right value is the sensor value read back (here: 236).
3. Open and close the pressure lever by hand and watch the read back value.
Pressure lever open: the value should match the range 5..7.
Pressure lever closed: the value should match the range 220..255.
4. Press the Online button to save the setting.
5. Press the Esc button to exit the parameter.
By doing so, the printhead sensor is set.
Sensor Adjust
128 Foil 6
Sensor Adjust
128 Head 236