| 摘要 |
PURPOSE:To prevent malfunction or the like from occurring when a power supply is turned ON by providing a power supply turning-ON controlling part comprising a main power supply part, an auxiliary power supply part and a main power switch controlled by the turning-ON of the auxiliary power supply. CONSTITUTION:A power supply turning-ON controlling part comprises a main power supply part 3, an auxiliary power supply part 4, a main power switch 5 controlled by the auxiliary power supply part 4, and a controlling circuit part 6 for a printer mechanism part. An auxiliary power cable 1 with an attachment plug is connected to a service plug socket 8 of a personal computer 10, and a main power cable 2 with an attachment plug is connected to a commercial power supply plug socket 14. With a power supply of the personal computer 10 turned ON, electric power is supplied from the service plug socket 8 of the computer 10 to the auxiliary power supply part 4 of a printer device 12. Next, a main power switch control signal 7 is inputted to a main power switch 5, and primary supply of electric power to the printer device 12 is conducted in the circuit of the plug socket 14 and the main power supply part 3 by the auxiliary power cable 1 through the main power switch 5. |
