Epson TM-T88VI-iHUB Technical Reference Guide

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Technical Reference Guide

Product Overview

Describes features of the product.

Setup

Describes setup and installation of the product and peripherals.

Advanced Usage

Describes advanced usage methods for the product.

Application Development Information

Describes how to control the printer and necessary information when you develop applications.

Handling

Describes how to handle the product.

Replacement of the TM-T88V-i

Describes precautions for replacement.

Appendix

Describes general specifications and character code tables.

M00105006

Rev. G

Cautions

•No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Seiko Epson Corporation.

•The contents of this document are subject to change without notice. Please contact us for the latest information.

•While every precaution has been taken in the preparation of this document, Seiko Epson Corporation assumes no responsibility for errors or omissions.

•Neither is any liability assumed for damages resulting from the use of the information contained herein.

•Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this product or third parties for damages, losses, costs, or expenses incurred by the purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or (excluding the U.S.) failure to strictly comply with Seiko Epson Corporation’s operating and maintenance instructions.

•Seiko Epson Corporation shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original Epson Products or Epson Approved Products by Seiko Epson Corporation.

Trademarks

EPSON is a registered trademark of Seiko Epson Corporation.

Exceed Your Vision and ESC/POS are registered trademarks or trademarks of Seiko Epson Corporation. Microsoft, Windows, and Windows Vista are registered trademarks of Microsoft Corporation in the United States and/or other countries.

Wi-Fi→, WPATM, and WPA2TM are either registered trademarks or trademarks of Wi-Fi Alliance→.

The Bluetooth→ word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Seiko Epson Corporation is under license.

IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under license. iBeacon is a trademark of Apple Inc.

AndroidTM is a trademark of Google LLC.

Google Play and the Google Play logo are trademarks of Google LLC.

All other trademarks are the property of their respective owners and used for identification purpose only.

ESC/POS→ Command System

Epson ESC/POS is a proprietary POS printer command system that includes patented or patent-pending commands. ESC/POS is compatible with most Epson POS printers and displays.

ESC/POS is designed to reduce the processing load on the host computer in POS environments. It comprises a set of highly functional and efficient commands and also offers the flexibility to easily make future upgrades.

©Seiko Epson Corporation 2016-2021.

For Safety

Key to Symbols

The symbols in this manual are identified by their level of importance, as defined below. Read the following carefully before handling the product.

You must follow warnings carefully to avoid serious bodily injury.

WARNING

		Provides information that must be observed to prevent damage to the equipment or loss of data.
		• Possibility of sustaining physical injuries.
	CAUTION	• Possibility of causing physical damage.
	CAUTION	• Possibility of causing information loss.
		• Possibility of causing information loss.

Provides information that must be observed to avoid damage to your equipment or a malfunction.

Provides important information and useful tips.

Warnings

		In the following cases, immediately unplug the AC cable and contact qualified service personnel.
		Continued use may lead to fire or electric shock.
	WARNING	• If the product emits smoke, a strange odor, or unusual noises.
	WARNING	• If water or other liquid spills into the product.
		• If water or other liquid spills into the product.
		• If the product is too hot to touch or the case is deformed.
		Note the following points to avoid accidents such as fire, electric shock, or burn.

•Do not use this product where flammable fumes from gasoline, benzine, thinner, or other flammable liquids may be in the air.

•Do not use aerosol sprayers containing flammable gas inside or around the product.

•Do not cover the product with cloth, or place the product in locations subject to high levels of humidity or dust.

•Do not allow foreign objects or flammable objects to fall into the equipment.

•Do not touch the inside of the product except where mentioned in the manual.

•Do not use the product with any power supply or voltage other than the ones specified.

•Do not connect cables in ways other than those mentioned in the manual.

•Never disassemble or modify the product.

•Do not use the power plug if there is dust or foreign matter attached.

•Do not bend, twist, pull with excessive force, or place heavy object on the power cable.

•Do not use the cables if they are damaged.

•Do not place multiple loads on the power outlet (wall outlet).

•Never insert or disconnect the power plug with wet hands.

Cautions

		Note the following points to avoid injury or malfunction.
		• Setup the product on a firm, stable, horizontal surface.
	CAUTION	• Do not place heavy objects on top of the product. Never stand or lean on the product.
	CAUTION	• Do not press your hands or fingers against the cutter when removing printed paper or loading/

		replacing roll paper.

•Do not put your hands between the cover and the body of the product when opening/closing the cover.

•Never attempt to repair the product yourself.

•Do not connect a telephone line to the drawer kick connector.

To ensure safety, unplug this product before leaving it unused for an extended period.

Caution Labels

The caution labels on the product indicate the following precautions.

CAUTION:

Do not touch the thermal head and the frame on its side because it can be very hot after printing.

CAUTION:

Touching the manual cutter may cause injury.

Restriction of Use

When this product is used for applications requiring high reliability/safety, such as transportation devices related to aviation, rail, marine, automotive, etc.; disaster prevention devices; various safety devices, etc.; or functional/precision devices, etc., you should use this product only after giving consideration to including failsafes and redundancies into your design to maintain safety and total system reliability. Because this product was not intended for use in applications requiring extremely high reliability/safety, such as aerospace equipment, main communication equipment, nuclear power control equipment, or medical equipment related to direct medical care, etc., please make your own judgment on this product's suitability after a full evaluation.

Note about interference

•This product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

•If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna for the radio/TV.

-Increase the separation between the equipment and the radio/TV.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult your dealer or an experienced radio/TV technician for help.

•Never disassemble or modify this product.

•Seiko Epson Corporation shall not be liable for interference to radio/TV resulting from changes or modifications to this product not expressly approved by Seiko Epson Corporation.

Open Source Software License

This product uses open source software in addition to Epson proprietary software.

For information of the open source software used in this product, see the following URL. http://xxx.xxx.xxx.xxx/webconfig/licenses.html

For “xxx.xxx.xxx.xxx” in the above URL, input your printer’s IP address.

About this Manual

Aim of the Manual

This manual provides developers/engineers with all the necessary information for design, development and installation of a POS system, and also design and development of a printer application.

Manual Content

The manual is made up of the following sections:

Chapter 1	Product Overview
Chapter 2	Setup
Chapter 3	Advanced Usage
Chapter 4	Application Development Information
Chapter 5	Handling
Chapter 6	Replacement of the TM-T88V-i
Appendix	Product Specifications
	Specifications of Interfaces
	Bluetooth Low Energy Technology Advertising
	Character Code Tables

Contents
■ For Safety..................................................................................................................................	3
Key to Symbols....................................................................................................................................................................	3
Warnings ...............................................................................................................................................................................	3
Cautions.................................................................................................................................................................................	4
■ Caution Labels .........................................................................................................................	5
■ Restriction of Use ....................................................................................................................	5
■ Note about interference ........................................................................................................	5
■ Open Source Software License.............................................................................................	5
■ About this Manual ..................................................................................................................	6
Aim of the Manual .............................................................................................................................................................	6
Manual Content..................................................................................................................................................................	6
■ Contents....................................................................................................................................	7
Product Overview ..........................................................................................	13
■ Features .................................................................................................................................	13
■ Product Configurations ......................................................................................................	15
Models..................................................................................................................................................................................	15
Accessories .........................................................................................................................................................................	15
■ Part Names and Functions .................................................................................................	16
Control Panel .....................................................................................................................................................................	17
Interfaces.............................................................................................................................................................................	18
Online and Offline............................................................................................................................................................	19
■ Status and Errors ..................................................................................................................	20
Error Status .........................................................................................................................................................................	20
Status Display ....................................................................................................................................................................	21
■ NV Memory ...........................................................................................................................	23
NV Graphics Memory......................................................................................................................................................	23
User NV Memory ..............................................................................................................................................................	23
Memory Switches.............................................................................................................................................................	23
R/E (Receipt Enhancement)..........................................................................................................................................	23
Maintenance Counter.....................................................................................................................................................	24
Web contents.....................................................................................................................................................................	24
■ Simple Setup for Wireless LAN ..........................................................................................	25
■ Useful Functions for Smart Devices..................................................................................	26
NFC Tag ................................................................................................................................................................................	26
QR Code...............................................................................................................................................................................	26
■ Printing Using Multiple Interfaces....................................................................................	27

Setup...............................................................................................................	28
■ Flow of Setup ........................................................................................................................	28
■ Installing the Printer............................................................................................................	29
Important Notes on Installation.................................................................................................................................	29
■ Adjusting the Paper Roll Near-End Sensor......................................................................	30
■ Connecting the AC adapter................................................................................................	31
Connecting the AC adapter .........................................................................................................................................	31
■ Connecting the Printer to the Host...................................................................................	32
USB Interface.....................................................................................................................................................................	32
Ethernet Interface............................................................................................................................................................	32
Wireless LAN Interface ...................................................................................................................................................	33
■ Connecting the Peripherals................................................................................................	36
Connecting the Cash Drawer ......................................................................................................................................	36
Setting the Built-in Buzzer (for Model with a Built-in Buzzer) .........................................................................	37
Connecting the Optional External Buzzer ..............................................................................................................	38
Connecting the Optional Wireless LAN Unit..........................................................................................................	40
Connecting the Optional Customer Display..........................................................................................................	40
Connecting a Key Input Device ..................................................................................................................................	41
Connecting a Serial Communication Device.........................................................................................................	42
■ Attaching the Connector Cover.........................................................................................	43
■ Arranging the Cables...........................................................................................................	45
■ Attaching the Power Switch Cover ...................................................................................	47
■ Changing the Paper Width .................................................................................................	48
■ RTC Settings ..........................................................................................................................	49
■ TM-Intelligent Function Settings ......................................................................................	50
How to Start EpsonNet Config (Web version).......................................................................................................	50
Advanced Usage............................................................................................	52
■ Setting the DIP Switches.....................................................................................................	52
Setting Procedure............................................................................................................................................................	52
Settings ...............................................................................................................................................................................	53
■ Software Settings.................................................................................................................	54
Software Setting Mode Functions.............................................................................................................................	56
■ Network Settings..................................................................................................................	62
Setup methods.................................................................................................................................................................	62
Flow of Setup ....................................................................................................................................................................	62
Setup using TM-T88VI Utility for Windows .............................................................................................................	63
Setup using EpsonNet Config.....................................................................................................................................	63
Setup using EpsonNet Config (Web version) ........................................................................................................	64
MAC Address Confirmation..........................................................................................................................................	65

■ Setting/Checking Modes ....................................................................................................	66
Self-test Mode ...................................................................................................................................................................	68
NV Graphics Information Print Mode........................................................................................................................	68
Receipt Enhancement Information Print Mode ....................................................................................................	69
Software Setting Mode ..................................................................................................................................................	70
Restore Default Values Mode.......................................................................................................................................	72
Interface Setup Mode.....................................................................................................................................................	73
TM-Intelligent Settings Information Print Mode ..................................................................................................	74
Peripheral Device Information Print Mode .............................................................................................................	74
Hexadecimal Dumping Mode .....................................................................................................................................	75
■ Printing a Status Sheet........................................................................................................	76
■ Resetting the Interface Settings .......................................................................................	78
■ TM-Intelligent Function ......................................................................................................	79
Network Printer Control.................................................................................................................................................	79
Controlling for POS Peripherals ..................................................................................................................................	80
Spooler and Print Forwarding .....................................................................................................................................	81
Communication Box .......................................................................................................................................................	87
Server Direct Print............................................................................................................................................................	89
Device Data Notification................................................................................................................................................	91
Web Server .........................................................................................................................................................................	93
Controlling POS Peripherals from iOS Applications ............................................................................................	95
Controlling POS Peripherals from Android Applications...................................................................................	96
Controlling POS Peripherals from Web Applications ..........................................................................................	97
Printing from Web Service Compatible Applications..........................................................................................	98
Controlling POS Peripherals from Socket Communication Compatible Applications............................	99
Application Development Information....................................................	100
■ Controlling the Printer ......................................................................................................	100
ePOS-Print XML..............................................................................................................................................................	100
ePOS-Device XML..........................................................................................................................................................	100
ESC/POS............................................................................................................................................................................	101
■ Controlling the Cash Drawer............................................................................................	102
■ Controlling the Built-in Buzzer ........................................................................................	103
■ Controlling the Optional External Buzzer .....................................................................	104
■ Software...............................................................................................................................	105
Development Kits .........................................................................................................................................................	105
Drivers ...............................................................................................................................................................................	106
Utilities ..............................................................................................................................................................................	106
Others................................................................................................................................................................................	107
Download ........................................................................................................................................................................	107
■ Notes on Printing Barcodes and Two-dimensional Symbols.....................................	108

Handling ......................................................................................................	110
■ Installing and Replacing Roll Paper................................................................................	110
■ Removing Jammed Paper.................................................................................................	113
■ If Roll Paper Cover does not Open ..................................................................................	115
■ Cleaning the Printer...........................................................................................................	116
Cleaning the Printer Case ...........................................................................................................................................	116
Cleaning the Thermal Head/Platen Roller ............................................................................................................	116
■ Preparing for Transport.....................................................................................................	117
Replacement of the TM-T88V-i...................................................................	118
■ Functional Comparison.....................................................................................................	118
TM-T88VI-iHUB vs TM-T88V-i Comparison Table ................................................................................................	118
■ Additional Functions and Functional Improvements .................................................	119
Print Speed.......................................................................................................................................................................	119
USB port with charging function .............................................................................................................................	119
SimpleAP Function........................................................................................................................................................	119
NFC......................................................................................................................................................................................	119
Epson TM Utility for iOS/Android.............................................................................................................................	119
TM-Intelligent Settings................................................................................................................................................	120
Beacon Packet Broadcasting .....................................................................................................................................	120
Appendix ......................................................................................................	121
■ Product Specifications ......................................................................................................	121
Printing Specifications.................................................................................................................................................	122
Character Specifications..............................................................................................................................................	123
Printable Area..................................................................................................................................................................	124
Printing and Cutting Positions..................................................................................................................................	126
Paper Specifications .....................................................................................................................................................	127
Electrical Characteristics .............................................................................................................................................	128
Environmental Conditions .........................................................................................................................................	129
External Dimensions and Mass.................................................................................................................................	130
Controllable Peripherals..............................................................................................................................................	132
Supported Keyboard Layouts ...................................................................................................................................	133
■ Specifications of Interfaces ..............................................................................................	135
USB Interface...................................................................................................................................................................	135
Network Interface..........................................................................................................................................................	136
NFC Tag..............................................................................................................................................................................	140
■ Bluetooth Low Energy Technology Advertising...........................................................	141
Introduction.....................................................................................................................................................................	141
Dongle specifications...................................................................................................................................................	141
Procedure .........................................................................................................................................................................	141

Changing the Bluetooth Low Energy Technology Advertising Packet	...................................................... 142
■ Character Code Tables.......................................................................................................	153

Chapter 1 Product Overview

Product Overview

This chapter describes features of the product.

Features

Printing

• High speed printing (350 mm/s maximum).

• Shifting from 80 mm width paper printing to 58 mm width paper printing is available. 1

• Multi-tone graphic printing.

Handling

• Easy drop-in paper loading

Software

•TM-Intelligent functions are available.

•Equipped with USB and serial interface which enable connection with peripheral devices such as a customer display and barcode scanner.

•Supports Server Direct Print that sends a request for print data from the product to the Web server at regular intervals.

•Since print data can be saved in the spooler, applications can be released from processing print jobs regardless of the printer status.

•When a network printer is registered, print forwarding process can be realized. Also, if the printer is not ready to print, you can print from another printer.

•Supports Device Data Notification function that enables your application on a Web server to start upon input of data from a peripheral device such as a barcode scanner.

•Equipped with Web server that supports the scripting language "PHP" and database "SQLite3".

•Epson ePOS SDK is available. You can develop an application that runs on iOS, Android, Windows, or that runs in a Web browser (Web application).

•Command protocol is based on the ESC/POS Proprietary Command System.

•OPOS ADK, OPOS ADK for .NET, JavaPOS ADK, and Windows printer drivers (APD) are available.

•A maintenance counter function is supported.

•Various utility software are provided.

•A utility for iOS/AndroidTM (Epson TM Utility for iOS/Android) for making printer settings is also provided.

Environment

• Paper saving function is available.

Functions

•NFC tag built into the printer unit for printing to a touched printer.

•Printing triggered by bar code scan by smart device camera.

•Supports printing using multiple interfaces.

•Enables HTTPS communication.

•Supports TLS1.2.

Others

•Optional Wireless LAN cable set, customer display, and external buzzer are available.

•The TM-T88VI Software & Documents Disc containing drivers, utility, and manuals is available. * It may not be supplied depending on the model.

Chapter 1 Product Overview

Product Configurations

Models

•Standard model: Ethernet interface, USB interface

•Wi-Fi® model: Ethernet interface, USB interface , Wireless LAN interface

Accessories

Included

•Roll paper (for operation check)

•Power switch cover

•Connector cover

•Bottom cover for Connector cover

•Roll paper guide

•Screws

•Cable lock band

•TM-T88VI Software & Documents Disc (drivers, utilities, and documentation) *

•AC adapter*

•AC cable*

•Start Here

* May not be included depending on the model.

Options

•Optional external buzzer (Model: OT-BZ20)

•Wireless LAN cable set (Model: OT-WL02/OT-WL05/OT-WL06)

•Customer display (Model: DM-D30, DM-D70, DM-D110, DM-D210)

	Part Names and Functions
	1
	2
		10
	3	9
	4	8
	4	7
		7
	5	11
	5
	6

1	NFC Tag	A mark is printed here to indicate the position of the NFC tag. To establish communication
		with an NFC device, bring the device close to this mark. For details on functions that use the
		NFC tag, refer to "Useful Functions for Smart Devices" on page 26.

•There is no data rewriting function.

•Use Epson ePOS SDK to build this function into your application.

2	Roll paper cover	Open this cover to install/replace the roll paper.

3	Manual cutter	Use this cutter when you cut the roll paper manually.

4	Cutter cover	Open this cover to unlock the autocutter blade when the roll paper cover does not open due
		to a paper jam.

5	Power switch	Turns the printer on or off.

6	Power switch cover	Install the power switch cover onto the printer to prevent inadvertent changing of the
		power switch, to prevent tampering, and to improve the appearance of the printer.
		To operate the power switch, insert an object with a pointed tip such as a ballpoint pen into
		the hole on the power switch cover.
		For attaching the power switch cover, refer "Attaching the Power Switch Cover" on page 47.

7	Connector cover	Use the printer with this cover attached to protect cables.

8	Cover open button	Use this button to open the roll paper cover.

9	Feed button	Pressing this button once feeds roll paper for one line. Hold down this button to continue
		feeding roll paper.

10	Control Panel	For details on LED, see "Control Panel" on page 17.

11	Dip switch cover	Open the cover to view the dip switches for settings.

When turning off the printer without using the power switch, it is recommended to send a

power-off command to the printer. If you use the power-off sequence, the latest maintenance counter values are saved. (Maintenance counter values are usually saved every two minutes.)

For information about ESC/POS commands, see the ESC/POS Command Reference.

Chapter 1 Product Overview

Control Panel

Power LED

•Lights when the power supply is on.

•Off when the power supply is off.

•Flashes during the network to start up, when waiting for power off, or updating firmware.

	Do not turn on by using the power switch while waiting for the power to turn off (when the Power
	LED is flashing). Otherwise, it may not startup correctly.


		1
Error LED		1

•Lights or flashes when an error occurs. (For information about the flashing patterns, see "Status and Errors" on page 20.)

•Lights after the power is turned on or after a reset (offline). Automatically goes out after a while to indicate that the printer is ready.

•Off when the printer is in standard mode (online).

Paper LED

•Lights when the roll paper is out.

•Flashes to urge user to operate the Feed button.

Interfaces

All interfaces are located on the lower rear of the printer.

• Do not insert a Type-B USB connector into the Ethernet port or the drawer kick connector. If it is inserted, the port, printer, and the system may malfunction.

•If using the drawer kick connector and the USB Port (Type A) simultaneously, we recommend using a flat-type drawer kick cable to prevent the cables from interfering with one another.

1	Drawer kick	Connects the cash drawer or the optional external buzzer.
	connector	See "Connecting the Cash Drawer" on page 36, and "Connecting the Optional External Buzzer" on
		page 38.

2	Ethernet port	Connects the 10BASE-T/100BASE-TX ethernet cable.

3	Serial port	Use only for connecting external devices.

4	USB port	Use only for connecting external devices.
	(Type A)	CAUTION:
		It may be hard to disconnect some types of USB cable. Do not forcibly pull the cable, or the USB
		port and USB cable may be damaged. Contact your dealer if you encounter the trouble.

5	USB port with	Connects a USB cable for connecting to an external USB device, or for charging a connected smart
	charging func-	device or USB device. By using the setting utilities, you can configure whether to use the port for
	tion	connecting a device or charging a device.
		CAUTION:
		• It may be hard to disconnect some types of USB cable. Do not forcibly pull the cable, or the USB
		port and USB cable may be damaged. Contact your dealer if you encounter the trouble.
		• Make sure you use the genuine cable for the tablet, smartphone, or USB device you are using.
		• Depending on how the device is being used, it may not charge to 100%.
		• It may take a few seconds before charging starts as the device searches for the most suitable
		amperage.
		• Charging may not be performed depending on the device's charging specifications.
		• Charging stops if it exceeds the rating for the USB port.

6	Power supply	Connect the AC adapter.
	connector	See "Connecting the AC adapter" on page 31.

7	USB port	Connects the USB cable for connecting to a computer.
	(Type B)	See "Connecting the Printer to the Host" on page 32.

Chapter 1 Product Overview

Online and Offline

Online

The printer is online and ready for normal printing unless there is a reason to go offline.

Offline

The printer automatically goes offline under the following conditions:
•	While the printer power is turning on/off
		1
•	While a self-test is running

•While roll paper is fed using the Feed button

•When the printer stops printing due to a paper end (when the paper out detector detected the paper out)

•During an operation standby state

•When an error has occurred (See "Status and Errors" on page 20)

•While the roll paper cover is open

Status and Errors

Error Status

There are three possible error types: automatically recoverable errors, recoverable errors, and unrecoverable errors.

Automatically Recoverable Errors

Printing is no longer possible when automatically recoverable errors occur. They can be recovered easily, as described below.

Error

Error description

Error LED flash code

Recovery measure

Roll paper

The roll paper cover was

LED ON

Recovers automatically

cover open

opened during printing.

LED OFF

when the roll paper cover is

error

Approx. 320 ms

closed.

Print head

A high temperature

LED ON

Recovers automatically

temperature

outside the head drive

LED OFF

when the print head cools.

error

operating range was

Approx. 320 ms

detected.

TM-Intelligent

Cannot connect to the

Error LED OFF

Recovers automatically

function error

server.

Power LED ON

when the printer settings

LED OFF

are corrected.

Approx. 160 ms

Approx. 5120 ms

(see "TM-Intelligent

Function" on page 79)

Recoverable Errors

Printing is no longer possible when recoverable errors occur. They can be recovered easily by turning the power on again or sending an error recovery command from the driver after eliminating the cause of the error.

Error	Error description	Error LED flash code		Recovery measure

Autocutter	Autocutter does not work	LED ON		Remove the jammed paper
error	correctly.	LED OFF		or foreign matter in the
		Approx. 320 ms		printer, close the roll paper
		Approx. 320 ms		printer, close the roll paper
			Approx. 5120 ms	cover, send the error
			Approx. 5120 ms	cover, send the error
				recovery command, or turn
				the power on to recover.

The error recovery command is valid only if a recoverable error (excluding automatically recoverable errors) occurs.

Chapter 1 Product Overview

Unrecoverable Errors

Printing is no longer possible when unrecoverable errors occur. If the error persists after turning the printer off and then on again, the printer may be defective. Contact qualified service personnel.

Turn off the power immediately when unrecoverable errors occur.

CAUTION

Error

Error description

Error LED flash code

Memory R/W error

After R/W checking, the printer does not work

LED ON

correctly.

LED OFF

Approx. 320 ms

High voltage error

The power supply voltage is extremely high.

LED ON

LED OFF

Approx. 320 ms

Low voltage error

The power supply voltage is extremely low.

LED ON

LED OFF

Approx. 320 ms

CPU execution error

The CPU is executing an incorrect address.

LED ON

LED OFF

Approx. 320 ms

Internal circuit

Internal circuits are not connected correctly.

LED ON

connection error

LED OFF

Approx. 320 ms

Approx. 5120 ms

Communication unit

An error has occurred in the communication unit.

LED ON

error

LED OFF

Approx. 320 ms

Status Display

Power LED

Error LED

Paper LED

Online

OFF

Initializing after restarting

Running a self-test

OFF

Waiting to continue self-test

OFF

Flashing

Feeding using the Feed button

OFF

Waiting to execute a macro

OFF

Flashing

Roll paper cover open during error printing

No paper



	Power LED	Error LED	Paper LED

Paper near end	ON	OFF	ON

While updating firmware	Flashing	OFF	OFF

Power off standing by	Flashing	OFF	OFF

Waiting to print status sheet	ON	ON	Flashing

-: Changes depending on whether or not paper is detected.

Chapter 1 Product Overview

NV Memory

The printer's NV memory (Non-Volatile Memory) stores data even after the printer power is turned off. NV memory contains the following memory areas for the user:

• NV graphics memory

• User NV memory

• Memory switches

• R/E (Receipt Enhancement)

• Maintenance counter

• Web contents

NV memory can be rewritten about 100,000 times. As a guide, NV memory rewriting should be 10

times or less a day when you program applications.

CAUTION

NV Graphics Memory

Graphics, such as shop logos to be printed on receipts, can be stored.

To register your graphics data, use TM-T88VI Utility or ESC/POS commands.

You can check registered graphics data using TM-T88VI Utility or by printing the data in the NV graphics information print mode.

User NV Memory

You can store and read text data for multiple purposes, such as for storing a note including customizing or maintenance information of the printer.

Memory Switches

With the memory switches, which are software switches for the printer, you can configure various settings of the printer. For information about the memory switch, see "Software Settings" on page 54.

R/E (Receipt Enhancement)

You can set the graphics data, such as a shop logo, registered in the NV graphics memory to be printed on the top of each receipt or to be printed on the bottom of each receipt just before the paper is cut.

To make the settings, use TM-T88VI Utility or ESC/POS commands.

You can check the settings using TM-T88VI Utility or by printing the settings information in the Receipt enhancement information print mode.

Maintenance Counter

With this function, printer information, such as the number of lines printed, the number of autocuts, and printer operation time after the printer starts working, is automatically stored in NV memory.

• You can also check the head running length and number of times of autocutting with the self-test (see "Self-test Mode" on page 68).

•The maintenance counter values are automatically saved in the NV memory usually every two minutes (up to four minutes). However, the values are not saved when the printer is in power-saving mode or when it is turned off without the use of the power switch.

Web contents

The region for Web servers.

Chapter 1 Product Overview

Simple Setup for Wireless LAN

This printer comes with a mode (SimpleAP) that allows printers to connect with a smart device or a computer without requiring a wireless access point. This allows you to easily setup a wireless LAN for the printer by using a printer settings tool (Epson TM Utility for iOS/Android or EpsonNet Config) even without a network environment such as access points.

SimpleAP mode is enabled by default when shipping from the factory. When SimpleAP mode is enabled and the printer is turned on, the following information is printed automatically.

SimpleAP Start
SSID	: EPSON_Printer
Encryption Type	: WPA-2-PSK
Passphrase	: 12345678
IP Address	: 192.168.192.168
MAC Address	: xx-xx-xx-xx-xx-xx

Although operations are performed in SimpleAP mode during the initial startup, operations switch to standard mode (infrastructure mode) when changing settings in Epson TM-T88VI Utility for Windows or EpsonNet Config. After switching, operations continue in standard mode. If you want to make settings in SimpleAP mode again, initialize the communication settings. (see "Resetting the Interface Settings" on page 78)

Changing to standard mode

Ex.) Change IP address,

	change SSID
SimpleAP mode		Standard mode


		(infrastructure
(default setting)		(infrastructure
(default setting)		mode)

Initialize the communication settings

* You can also set this to standard mode (Ad-Hoc mode) except for the OT-WL06.

Useful Functions for Smart Devices

You can easily connect this product to the network by using the NFC tag built-in to the printer or the QR code printed on the status sheet.

NFC Tag

Bring a smart device that supports NFC close to the NFC tag to acquire the printer information (information for specifying the device).

Specify the target printer using the acquired information to connect to the network.

QR Code

Capture the QR code printed on the status sheet with the camera on your smart device to acquire the printer information (information for specifying the device).

Specify the target printer using the acquired information to connect to the network.

• Programming using Epson ePOS SDK is required to use these functions. These functions are created by combining NFC touch and QR code capturing operations and the target printer specifications using Printer Easy Select API.

See the "Epson ePOS SDK for Android/iOS User's Manual" and the Epson ePOS SDK sample program for more details. The sample program also contains a sample implementation method for reading an NFC tag and capturing a QR code.

• You can try a demo of these functions by using Epson TM Utility for iOS/Android.

Chapter 1 Product Overview

Printing Using Multiple Interfaces

You can use all interfaces without any limitations on which interface is to be used. You can use this function to temporarily connect a smart device to a nearby printer and print.

The printer provides each interface with an independent receive buffer and switches the active interface depending on the priority, while handling data in each receive buffer.

You can set one interface for the main connection. Data received from the main connection interface is handled with the highest priority.

By default, the interface that receives the first data transfer is set as the main connection interface; however, you 1 can select the main connection interface in advance.

In the status where all receive buffers are empty for more than the set time (1 second by default), interface switching is enabled. The interface that receives the data in this status becomes active.

You cannot use wired and wireless LANs at the same time. When a LAN cable is connected, wireless

LAN is disabled.

You can select the main connection interface and set the time to enable interface switching from the software settings. For details on software settings, see "Software Settings" on page 54.

Epson TM-T88VI-iHUB Technical Reference Guide

Setup

This chapter describes setup and installation of the product and peripherals.

Flow of Setup

This chapter consists of the following sections along with the setup flow of the product and peripherals.

1.Installing the Printer (page 29)

2.Adjusting the Paper Roll Near-End Sensor (page 30)

3.Connecting the AC adapter (page 31)

4.Connecting the Printer to the Host (page 32)

5.Connecting the Peripherals (page 36)

6.Attaching the Connector Cover (page 43)

7.Arranging the Cables (page 45)

8.Attaching the Power Switch Cover (page 47)

9.Changing the Paper Width (page 48)

10.RTC Settings (page 49)

11. TM-Intelligent Function Settings (page 50)

Chapter 2 Setup

Installing the Printer

Important Notes on Installation

•The printer must be installed horizontally on a flat surface (not tilted).

•Do not place the printer in dusty locations.

•Do not catch cables or place foreign matter under the printer.

Adjusting the Paper Roll Near-End Sensor

Below are two situations where a roll paper NE sensor adjustment is required.

•To adjust the detection position to suit the diameter of the roll paper core used.

•To adjust the detection position of remaining amount of paper.

• Since roll paper cores vary slightly in shape, depending on paper roll design and manufacturing tolerances, it is impossible to detect the remaining paper exactly.

•Use roll paper with a core inner diameter of 12 mm {0.47"} and outer diameter of 18 mm {0.71"} so that the NE sensor can detect the remaining paper as accurately as possible.

Follow the steps below to adjust the roll paper near-end detector.

1Open the roll paper cover, and remove the roll paper.

2Loosen the adjustment screw fastening the sensor, and align the upper edge of the positioning plate with the adjustment position.

	Adjustment position	Remaining amount of paper
	Adjustment position	(outer diameter: mm)
		(outer diameter: mm)

	Upper	Approx. 27 {1.06"}

	Lower (Default setting)	Approx. 23 {0.97"}