Epson UB-U09 Developer's Manual

Also see for UB-U09: User manual

Rev. B System Preparation 1-1UB-U09 Developer's GuideConfidentialChapter 1System PreparationAvailable Operating System❏ Microsoft Windows 98 Second Edition and above.(Available OS is limited only when using the USB interface. There is no limitation whenusing the serial interface.)SpecificationsThe UB-U90, which has been developed for EPSON TM Printers, has serial and USB interfacefunctions. You can switch between the functions by using the USB/Serial switching located onthe front of the UB-U09.❏ When using the USB interface, the fastest communication speed is 12Mbps. (bps: bit persecond)❏ When using USB interface, the device driver is necessary. For more details, see Chapter 3"Software"(*) This interface board uses the bulk transfer method, which is driven by the host computer. Therefore, the printercannot process data sending interrupts as different from RS232 transfer. The printer’s status buffer is larger than100 bytes. Status data above the buffer capacity will be cancelled. To prevent the cancellation, the hostcomputer needs to read the status data periodically.Interface Type: USB Specification Rev.1.1Communication Speed: Full Speed mode (12Mbit/s)Transfer Method: Bulk Transfer method*Electrical: USB self electrical functionUSB BUS Consumption: 0mA (provided from TM printer)USB Packet Size:USB Bulk OUT (TM) 8bytesUSB Bulk IN (TM) 64bytes