26Tonal Send TestTonal test procedurePress the [Tonal] button on the "Line Test” screen.Select a signal to test.When the [Stop] key is pressed, signal send is interrupted.When the [Close] button is pressed, the screen returns to the “Line test” screen.When the [Reset] key is pressed, screen returns to the top screen of the service menu.DTMF TestSignals of the frequencies that are used by the push-button telephone can be selected forthe send test.DTMF test procedurePress the [DTMF] button on the "Line Test” screen.Select a frequency to send.When the [Stop] key is pressed, signal send is interrupted.When the [Close] button is pressed, the screen returns to the “Line test” screen.When the [Reset] key is pressed, screen returns to the top screen of the service menu.2.7 Printer MaintenancePersonalityDefault setting of the PDL language that is supported by the respective destinationspecification can be changed. The PDL language that has been set to” Disable” by thePDL setting item will not be displayed as the choices on the following menu: [SETUP]-[Admin Setup] - [Print Setup] . At the same time, when the print data of the PDLlanguage that has been set to “Disable” is received, a message “”Invalid data is received”is displayed and the received data is discarded.IBM 5577 Settings: Enable /Disable Default: DisableIBM PPR III XL Settings: Enable /Disable Default: EnableEPSON FX Settings: Enable /Disable Default: EnableHP-GL/2 Settings: Enable /Disable Default: DisablePeak Power ControlSet whether or not to support the low peak power control. When the screen exits theservice menu after this setting is changed, the MFP reboots automatically.Settings: Low / Normal Default: Normal