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Epson TM-T20II Technical Reference Guide - Page 89

Appendix, Specifications of Interface and Connector, USB (Universal Serial Bus) Interface

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Appendix Appendix Specifications of Interface and Connector USB (Universal Serial Bus) Interface USB interface connector Has a USB upstream port connector (USB type-B connector) USB transmission specifications USB function Overall specifications Transmission speed Transmission method Power supply specifications Current consumed by USB bus USB packet size (with full-speed connection) USB bulk OUT (TM) USB bulk IN (TM) USB device class According to USB 2.0 specifications USB Full-Speed (12 Mbps) USB bulk transmission method USB self power supply function 2 mA 64 bytes 64 bytes Select USB printer class or USB vendordefined class with the memory switch. USB descriptor Vendor ID Product ID String Descriptor Manufacturer Product Serial number USB vendor-defined class 04b8h 0202h EPSON TM-T20II Character string based on the product serial number USB printer class 04b8h 0E15h EPSON TM-T20II Character string based on the product serial number 89

Section	Page
For Safety	3
Key to Symbols	3
Warnings	4
Cautions	5
Restriction of Use	5
About this Manual	6
Aim of the Manual	6
Manual Content	6
Contents	7
Product Overview	11
Features	11
Product Configurations	12
Interface	12
Colors	12
Accessories	12
Part Names and Functions	13
Power Switch	13
Roll paper cover/Cover open lever	13
Control Panel	14
Offline	15
Connectors	16
Error Status	17
Automatically Recoverable Errors	17
Recoverable Errors	17
Unrecoverable Errors	18
NV Memory (Non-Volatile Memory)	19
NV Graphics Memory	19
User NV Memory	19
Memory Switches	19
R/E (Receipt Enhancement)	20
User-defined Page	20
Maintenance Counter	20
Product Specifications	21
Printing Specifications	22
Character Specifications	23
Paper Specifications	25
Printable Area	26
Printing and Cutting Positions	27
Electrical Characteristics	28
Environmental Conditions	29
External Dimensions and Mass	30
Setup	31
Flow of Setup	31
Installing the Printer	32
Installing the Printer Vertically	33
Hanging the Printer on a Wall	34
Attaching Cover on the Power Switch	36
Changing the Paper Width	37
Connecting the Printer to the Host Computer	38
For Serial Interface	38
For USB Interface	40
For Ethernet Interface	42
Connecting to the Power Source	44
Connecting the AC cable	44
Setting the Memory Switches/Receipt Enhancement	46
Functions	47
Connecting the Optional External Buzzer	55
Connecting the Buzzer Unit	56
Connecting the Cash Drawer	58
Required specifications of cash drawers	58
Connecting the DK cable	59
Application Development Information	61
How to Control the Printer	61
Selecting a Driver	61
ESC/POS Commands	62
Software and Manuals	68
Printer Drivers	68
Utilities	70
How to Get Drivers, Manuals, and the Utility	71
Setting/Checking Modes	72
Self-test Mode	72
NV Graphics Information Print Mode	74
Receipt Enhancement Information Print Mode	76
Software Setting Mode	78
Hexadecimal Dumping Mode	80
Handling	81
Installing and Replacing Roll Paper	81
Removing Jammed Paper	83
Cleaning the Printer	85
Cleaning the Printer Case	85
Cleaning the Thermal Head/Platen Roller	85
Preparing for Transport	86
Replacement of the TM-T20	87
Additional Functions and Functional Improvements	87
Print Speed	87
Appendix	89
Specifications of Interface and Connector	89
USB (Universal Serial Bus) Interface	89
RS-232 Serial Interface	90
Ethernet Interface	92
Setting Conditions for Software Setting Mode	94