AMT Datasouth M7 SERIES Service Manual page 13

M7 SERIES
Thermal Printer Service Manua
LCD panel is dark and
keys are not working.
LCD panel is dark but
the LED's are light.
LCD panel is dark and
LED's are lit on, but
the label is feeding
forward.
Ribbon encoder
sensor doesn't work.
Ribbon end sensor
doesn't work.
Peel sensor is not
working.
Cutter is not working. * The connector is loose.
Label feeding is not
stable (skew) when
printing.
Skips labels when
printing.
* The cable between main PCB and LCD
panel is loose.
* The printer initialization is unsuccessful.
* The LCD panel harness connector is
loose.
* The ribbon encoder sensor connector is
loose.
* The connector is loose.
* The ribbon sensor hole is covered with
dust.
* Peel sensor is not located on the correct
position.
* The connector is loose.
* The media guide does not touch the
edge of the media.
* Label size is not specified properly.
* Sensor sensitivity is not set properly.
* The media sensor is covered with dust.
l
* Check if the cable between main PCB and LCD
is secured or not.
* Turn OFF and ON the printer again.
* Initialize the printer.
* The LCD panel harness connector is plugged
upside down.
* Fasten the connector.
* Check the connector.
* Clear the dust in the sensor hole by the blower.
* Make sure that the media goes through the Peel
sensor.
* Plug the connect cable correctly.
* Plug in the connect cable correctly.
* If the label is moving to the right side, adjust the
label guide to left.
* If the label is moving to the left side, adjust the
label guide to right.
* Check if label size is setup correctly.
* Calibrate the sensor by Auto Gap or Manual Gap
options.
* Clear the GAP/Black mark sensor by blower.
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