Citizen CL-S700 - Chapter 2: Printer Operation; Powering On and Off

CITIZEN Android Label Print SDK — Programming Manual
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2.2.4 disconnect method
Syntax
int disconnect ()
Parameters
none
Description
Disconnects a printer.
This must be called when a connection is no longer needed or when an error occurs.
Return value
Returns CLS_SUCCESS(0) on success, an error code otherwise. See "2.1 Return value" for the error
codes.
Example
printer.disconnect();