Patent ID: 11928370
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 2:
3. An image forming system comprising:
the image forming apparatus according to claim 1; and
a communication device connected to the image forming apparatus, the communication device including:
a USB interface including a VBUS terminal, a D+ terminal, a D− terminal, and an ID terminal and connected to an image forming apparatus;
a communication portion configured to output a start signal when a rated voltage is supplied from the image forming apparatus through the VBUS terminal, and relay transmission of communication data exchanged between an information processing apparatus and the image forming apparatus through the D+ terminal and the D− terminal while communicating with the information processing apparatus;
a notification portion configured to output a notification signal to the ID terminal when the communication portion receives data from the information processing apparatus;
a delay signal generation portion configured to output a delay signal obtained by delaying the notification signal; and
a pull-up portion configured to pull up a potential of the D+ terminal to a reference potential when at least one of the start signal and the delay signal is output.