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Confidential
Chapter 1
System Preparation
Available Operating System
❏ Microsoft Windows 98
(Available OS is limited only when using the USB interface. There is no limitation when
using the serial interface.)
Specifications
The UB-U90, which has been developed for EPSON
functions. You can switch between the functions by using the USB/Serial switching located on
the front of the UB-U09.
❏ When using the USB interface, the fastest communication speed is 12Mbps. (bps: bit per
second)
❏ When using USB interface, the device driver is necessary. For more details, see Chapter 3
"Software"
Interface Type:
Communication Speed:
Transfer Method:
Electrical:
USB BUS Consumption:
USB Packet Size:
USB Bulk OUT (TM)
USB Bulk IN (TM)
(*) This interface board uses the bulk transfer method, which is driven by the host computer. Therefore, the printer
cannot process data sending interrupts as different from RS232 transfer. The printer's status buffer is larger than
100 bytes. Status data above the buffer capacity will be cancelled. To prevent the cancellation, the host
computer needs to read the status data periodically.
Rev. B
Second Edition and above.
USB Specification Rev.1.1
Full Speed mode (12Mbit/s)
Bulk Transfer method*
USB self electrical function
0mA (provided from TM printer)
8bytes
64bytes
UB-U09 Developer's Guide
TM Printers, has serial and USB interface
System Preparation 1-1
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