Neopost IS-6000 User Manual page 105

By default, the system displays the value of the previous cre-
diting amount.
4
Enter the amount to add using the keyboard (use
[Backspace] to clear digits).
5
Press [OK] to start the connection to the postal server.
If the crediting process is successful, the system displays a
message.
If crediting fails, the system displays a failure message to-
gether with the value you are allowed to add, depending on
your postal account balance.
In the case of a communication error, the amount previously
entered cannot be changed.
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