26
3.4
The device does not require regular
calibration as it is calibrated by the manufacturer.
The calibration data is stored in non-volatile device
memory.
3.5 Possible malfunctions and repairing
methods
Table 3
Malfunction
Possible reasons
Repairs
The reader state
indicator does not
light up.
No power supply.
Check the connection
of the reader to the
PC
via the USB cable.
The reader cannot
be connected to
the application
(the reader state
indicator is red).
The USB cable is out
of order.
Make sure that
the USB cable is
serviceable: connect
any other USB device
to the PC via this
cable.
The USB port of the
PC is out of order.
1. Connect the reader
to another USB port of
the PC or to another PC
(if available).
2. Make sure that the
USB port is serviceable:
connect any other USB
device to the USB port.
The device drivers
are not installed.
Make sure that
the device is registered
in the OS device
manager.
