An improved bond integrity test system is provided by eliminating the spring loaded wire spool cover which contributes to particulate matter, and by addition of a second contact diverter in the wire path. The system includes a cleaning mechanism for a wiper of a printing system. An inner cylinder side stopper of concave curve surface is formed on an outer circumference of an intermediate part in the longitudinal direction of the inner cylinder. The authentication information may be associated with the virtual printer relation information in the server. The crystal is obtained by a novel process of conducting crystallization at a lower temperature.