Service manual

SRP-150

Rev. 1.02

- 36 -

4-3-6 USB2.0 Communication Block Diagram

The printer support the USB (Universal Serial Bus). The transfer type of the printer is the BULK.

Figure 4-3-6 USB2.0 Communication Block Diagram

4-3-7 DIP Switch Circuit

The key board circuits consist of 4 lines. The CPU reads the DIP S/W only once at power on.

Figure 4-3-7 USB Communication Block Diagram

UPD70F738