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# Panel Tone

The following table describes the meaning of the various beep patterns that the machine produces to alert users about left originals and other machine conditions.

Beep pattern | Meaning | Causes
--- | --- | ---
Single short beep | Panel/screen input accepted. | A control panel or screen key was pressed.
Short, then long beep | Panel/screen input rejected. | An invalid key was pressed on the control panel or screen, or the entered password was incorrect.
Single long beep | Job completed successfully. | A Copier/Document Server Features job has finished.
Two long beeps | Machine has warmed up. | After cooling or being switched on, the machine has fully warmed up and is ready for use.
Five long beeps | Soft alert | The initial screen returns when the machine goes into energy saving mode and when simplified display is canceled.
Five long beeps repeated four times. | Soft alert | An original has been left on the exposure glass or paper is empty.
Five short beeps repeated five times. | Strong alert | The machine requires user attention because paper has jammed, the toner needs replenishing, or other problems have occurred.

- Users cannot mute the machine's beep alerts. When the machine beeps to alert users of a paper jam or toner request, if the machine's covers are opened and closed repeatedly within a short space of time, the beep alert might continue, even after normal status has resumed.

- You can select to enable or disable beep alerts. For details about Panel Key Sound, see "General Features", Network and System Settings Reference.