Epson TM L90 Technical Reference Manual page 107

Q: Unable to print a part of Page 0 (for example
A: When programming with Visual Basic, limitations prevent data from 81h through 9Fh and
E0h through FEh from being sent as characters. However, you can use the following
procedure to send this data.
Dim Send_ data(0) As Byte
Send_data(0) = &h81 '1 byte of sending data
MSComm1.Output = Send_data
Q: Does USB 2.0-compatible equipment accept the USB interface printer?
A: Yes, but note that the speed of communication between the USB2.0 equipment and the
printer is "USB full speed mode."
Note:
USB2.0 defines three speeds: High speed (480 Mbps), Full speed (12 Mbps) and Low speed (1.5 Mbps).
This printer supports only Full speed (12 Mbps) and Low speed (1.5 Mbps).lkLK
Rev. B
TM-L90/TM-L90 with Peeler Technical Reference Guide
) in Visual Basic.
Application Development Information 4-19