| 主权项 |
1. A facsimile device, comprising:
a main control unit including a first main control unit having a normal mode and an energy-saving mode, the first main control unit being configured to count a number of rings in a call signal sent from a public-line network and to put the facsimile device off-hook when the count value reaches a preset specified number of rings in the normal mode, and to suspend the count and off-hook functions in the energy-saving mode; and a sub-control unit configured to detect an incoming call signal when the main control unit is in the energy-saving mode, and cause the main control unit to recover to the normal mode; wherein the main control unit is configured to:
calculate, after recovering to the normal mode, the number of rings in an incoming call signal in an elapsed time required from when the sub-control unit detects the incoming call signal until the main control unit recovers to the normal mode, anduse the calculated number of rings to count the number of rings in an incoming call signal. |
