Epson TM-T88IV Technical Reference Manual
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Epson TM-T88IV Technical Reference Manual

Thermal printer
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TM-T88IV
Technical reference
guide
English
410528700
EPSON

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Summary of Contents for Epson TM-T88IV

  • Page 1 TM-T88IV Technical reference guide English 410528700 EPSON...

  • Page 3: Revision History

    Its high scalability enables users to build versatile POS systems. The system is compatible with all types of EPSON POS printers and displays. Moreover, its flexibility make it easy to upgrade in the future. The functionality and the user-friendliness is valued from around the world.
  • Page 4 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. WARNING: You must follow warnings carefully to avoid serious bodily injury. CAUTION: Provides information that must be observed to prevent damage to the equipment or loss of data.
  • Page 5 TM-T88IV Technical Reference Guide Warnings WARNING: ❏ Shut down your equipment immediately if it produces smoke, a strange odor, or unusual noise. Continued use may lead to fire or electric shock. Immediately unplug the equipment. ❏ Only disassemble this product as described in this manual. Do not make modifications to the unit.

  • Page 6: Emc And Safety Standards Applied

    EMC and Safety Standards Applied Product Name: TM-T88IV Model Name: M129H The following standards are applied only to the printers that are so labeled. (EMC is tested using the Epson power supplies.) Europe: CE marking Safety: EN 60950 North America: EMI: FCC/ICES-003 Class A Safety: UL 1950/CSA C22.2 No.
  • Page 7 The connection of a non-shielded printer interface cable to this printer will invalidate the EMC standards of this device. You are cautioned that changes or modifications not expressly approved by Seiko Epson Corporation could void your authority to operate the equipment.

  • Page 8: About This Manual

    About this Manual This manual describes the TM-T88IV, a current EPSON thermal printer product. The currently available power supply, the PS-180, works with TM-T88IV. Aim of the Manual This manual was created to provide all the information necessary for system planning, design, installation, and application of the printer for designers and developers of POS system.
  • Page 9 EPSON Advanced Printer Driver Manual Provides information for anyone who is programming using the APD (EPSON Advanced Printer Driver). This is included in the EPSON Advanced Printer Driver.* * You can obtain these items from one of the following URLs: For customers from North America: http://pos.epson.com/...
  • Page 10 viii Rev. A...

  • Page 11: Table Of Contents

    TM-T88IV Basic Specification Table ........
  • Page 12 Windows Driver (EPSON Advanced Printer Driver) ........
  • Page 13 International Character Set ..............C-12 Appendix D TM-T88IV/TM-88III Comparison Table...
  • Page 14 x Contents Rev. A...

  • Page 15: Chapter 1 Product Overview

    Chapter 1 Product Overview The TM-T88IV thermal printer product is currently available from EPSON. In addition, the PS- 170, the power supply, is obsolete and no longer available. It is described only for legacy support. The currently available power supply, the PS-180, works with TM-T88IV.

  • Page 16: Product Structure

    1.2 Product Structure 1.2.1 Model ❏ Product Name TM-T88IV (current product) • Print method: Thermal line printing • Interface specifications: Serial interface specifications (RS-232C) Parallel interface specifications (IEEE 1284-compliant) USB interface specifications (Full speed) Ethernet interface specifications (10/100Base-T) Wireless LAN interface specifications (802.11b) •...

  • Page 17: Tm-T88Iv Basic Specification Table

    TM-T88IV Technical Reference Guide 1.2.5 TM-T88IV Basic Specification Table Table 1-1 TM-T88IV 1. High-speed print mode Approx. 200 mm/s (7.9") maximum 2. High-speed power Average : Approx. 1.8A consumption mode 3. Serial interface selectable 2400, 4800, 9600, 19200, 38400, 57600, 115200...

  • Page 18: Control Panel

    1.3.2 Control Panel TM-T88IV (POWER) LED ERROR LED PAPER OUT LED FEED button 1.3.2.1 LED (POWER) LED (green) ❏ Lights when the power supply is on. ❏ Goes out when the power supply is turned off. ERROR LED Lights or flashes when the printer is offline.

  • Page 19: Power Switch

    TM-T88IV Technical Reference Guide 1.3.3 Power Switch The power switch is located at the bottom right front of the printer. (Refer to “Printer part names” (page 1-3).) Turn the printer on or off. The marks on the switch (0 = on / 1 = off) indicate the printer switch position.

  • Page 20: Installing And Replacing Roll Paper

    1.4.1 Installing and Replacing Roll Paper Note: Be sure to use roll paper that meets printer specifications. See Appendix B for details on the paper specifications. Do not use roll paper whose trailing end is glued to the roll paper core. 1.4.1.1 Installing Roll Paper 1.

  • Page 21: Removing Jammed Paper

    TM-T88IV Technical Reference Guide 3. Pull out the roll paper toward you, then close the printer cover. Figure 1-6 Closing the printer cover 4. Tear off the leading edge of the roll paper using the manual cutter. Figure 1-7 Tear off paper 1.4.1.2 Replacing Paper...

  • Page 22: Cleaning The Thermal Head

    Turn off the printer, open the printer cover, and clean the thermal elements of the thermal head with a cotton swab moistened with an alcohol solvent (ethanol, methanol, or IPA). Epson recommends cleaning the thermal head periodically (generally every 3 months) to maintain receipt print quality.

  • Page 23: Power Switch Cover

    TM-T88IV Technical Reference Guide 1.4.4 Power Switch Cover Install the power switch cover that comes with the TM-T88IV onto the printer to prevent inadvertent changing of the power switch, to prevent tampering, and to improve the appearance of the printer.

  • Page 24: Shipping Procedures

    3. Push the connector cover down to click onto the printer case. To remove the connector cover, turn the printer over, and push the connector cover down while pushing both sides of the connector cover inward to detach the hooks from the printer case as shown in the illustration.

  • Page 25: Chapter 2 Setup

    TM-T88IV Technical Reference Guide Chapter 2 Setup Before using the printer, you need to make various settings to increase the printer's functionality. Configure the printer appropriately depending on the environment. 1. Install the printer (page 2-2) Detailed setup 2. Set the DIP switches (page 2-2) 3.

  • Page 26: Installing The Printer

    2.1 Installing the Printer In addition to regular horizontal installation, the printer can be hung on a wall using the optional WH-10 Wall Hanging Bracket Set. 2.1.1 Precautions for Horizontal Installation ❏ Install the printer in a flat, horizontal position. ❏...

  • Page 27: Dip Switch Functions

    TM-T88IV Technical Reference Guide CAUTION: Before you remove the DIP switch cover, turn the printer off. Otherwise, a short-circuit may cause the printer to malfunction. 1. Make sure the power supply for the printer is turned off. 2. Unscrew the screw to remove the DIP switch cover from the base of the printer.
  • Page 28 Table 2-3 Baud rate selection (DIP SW1-7, 1-8) TM-T88IV Switch no. Baud rate (BPS) 38400 (Default)** 4800 9600* 19200 * Factory setting. ** The baud rate can be changed with the setting values for the communication conditions of the serial interface. The serial interface communication conditions can be changed using command and Memory switch setting utility.
  • Page 29 TM-T88IV Technical Reference Guide 2.2.2.2 DIP switch settings for other interface specifications The following DIP switch functions are for parallel interface/USB/Ethernet model printers. Note: * Factory setting Table 2-6 Parallel/USB/Ethernet DIP switch bank 1 Function Automatic line feed Enabled at all times...

  • Page 30: Customized Value

    2.3 Customized value The customized value is set with command and Memory switch setting utility. Table 2-9 Types of the Customized Value Function Value Selection of print density 70% – 130% (13 levels in 5% each) Selection of print speed Level 1–9 (9 levels) Number of head energizing One-part energizing, Two-part energizing, Four-part energizing,...
  • Page 31 TM-T88IV Technical Reference Guide 2. Loosen the adjustment screw fastening the detector, and align the upper edge of the positioning plate with the adjustment position. Adjustment positions are as follows: Adjustment screw Adjustment Remaining amount of roll position paper (outer diameter: mm)

  • Page 32: Connecting The Printer To The Host Computer

    2.5 Connecting the Printer to the Host Computer 2.5.1 Serial Interface Connection 2.5.1.1 Cross cable wiring diagrams The wiring selections for available serial cross cables are as follows: Figure 2-11 Cross cable diagrams The cable needed depends on printer control and handshake method. You can operate the TM printer with a Windows driver, OPOS, or ESC/POS commands.
  • Page 33 TM-T88IV Technical Reference Guide Stand alone Both the TM printer and DM-D are connected to the host computer directly via the serial port. Application XON/XOFF DTR/DSR RTS/CTS control (except OPOS) (DOS, OPOS, Visual C) (DOS, Windows driver, Visual C, TM side...

  • Page 34: Parallel Interface Connection

    2.5.1.3 Connecting the serial interface (RS-232) cable WARNING: Be sure to turn off the power supply for both the printer and host computer before connecting the cables. 1. Insert the interface cable connector firmly into the interface connector on the connector panel.

  • Page 35: Usb Interface Connection

    USB hub from a printer connected to the host computer. Note: A customer display (DM-D) can be connected to a USB model TM-T88IV (with UB-U01/UB-U02) by the exclusive modular cable (RJ-45). When connecting the customer display, connect the modular jack from the customer display to the DM connector (refer to “Installing the locking wire saddle”...
  • Page 36 Figure 2-17 Installing the locking wire saddle 3. Connect the USB cable from the host computer to the USB upstream connector. 4. Up to 2 USB devices can be connected to a USB model TM-T88IV by using 2 USB downstream connectors.

  • Page 37: Ethernet Interface Connection

    TM-T88IV Technical Reference Guide To use USB model TM printers, the TM printer driver (EPSON OPOS ADK or advanced printer driver) must be installed on the host computer. Get the latest driver information from one of the following URLs: For customers from North America, go to the following web site: http://pos.epson.com/...
  • Page 38 For customers from other countries, go to the following web site: http://www.epson-pos.com/ Select the product name from the “Select any product” pull-down menu. Other compatible Ethernet interface modules may be available for your printer. Contact your EPSON dealer for information on the options available. 2-14 Setup...

  • Page 39: Wireless Lan Interface Connection

    2.6 Connecting Power Supply Unit and Cash Drawer Always use one of the following power supplies: The EPSON PS-180 (the currently available power supply that can be used with the TM-T88IV). Use the cash drawer handled by EPSON or your dealer.

  • Page 40: Connecting The Drawer Kick-Out Cable

    To use the TM printer, either the Advanced Printer Driver (APD) (Windows driver) or the EPSON OPOS ADK (OCX driver) must be installed. For an outline of each driver, refer to “Introducing the Control Methods” (page 3-1). For details on installation methods, refer to the manual for the respective driver.

  • Page 41: Chapter 3 Application Development Information

    API. This uses the printer’s bidirectional communication capability in the Windows standard printer driver operating environment. Note: The status API is a printer control API originally supplied by EPSON. This can be used to get the printer status and send ESC/POS commands. Rev. A...
  • Page 42 User's manual (for developers) • Engineering data for each status • Main function control methods (for WordPad and VB) 3.1.1.3 EPSON Advanced Printer Driver support environment ❏ Supported interfaces • Serial, parallel, USB, Ethernet ❏ Supported operating systems (with confirmation of system operation) •...

  • Page 43: Epson Opos Adk

    Ethernet model printer. See the manual packed with the APD. When you use the APD for the TM-T88IV, using TrueType fonts may slow printing down, due to the speed of communication between the printer and host computer. If this happens, we recommend using printer-resident fonts.
  • Page 44 3.1.2.2 EPSON OPOS ADK contents The installer of the EPSON OPOS ADK, Ver. 2.10 or later, has a silent installation function, which can install the OPOS environment without a user interface and facilitate installation. With the installer, the following OPOS-compliant OPOS Control for EPSON devices, manuals, various utilities, and sample programs can be installed.
  • Page 45 This driver is necessary to connect a USB model printer. • Sample programs Sample programs for VB, VC++ can be installed. 3.1.2.3 EPSON OPOS ADK support environment ❏ Supported interfaces • Serial, parallel, USB, Ethernet ❏ Supported OSes (with confirmation of system operation) •...

  • Page 46: Esc/Pos Commands

    3.1.3 ESC/POS Commands To directly control the TM printer using ESC/POS commands, EPSON proposes printing/ control via ESC/POS commands. The printer can be controlled directly by sending ESC/POS commands from an application to the printer. For detailed information about ESC/POS commands, please contact EPSON or your dealer.

  • Page 47: Feed Button

    TM-T88IV Technical Reference Guide 3.2.1 FEED Button The printer feeds paper based on the line spacing set by the control method (OPOS, Advanced Printer Driver, ESC/POS commands). However, you cannot feed paper using the FEED button under the following conditions: •...

  • Page 48: Error Led

    3.3.3 Error LED Table 3-12 Error LED Item Specifications LED color On states Printer is performing regular operations or is online. Offline (excluding self-test with the FEED button). Flashing Error state. 3.3.3.1 Error Codes There are three possible error types: automatically recoverable errors, recoverable errors, and unrecoverable errors.
  • Page 49 TM-T88IV Technical Reference Guide Recoverable errors Although normal printer operation is not possible after a recoverable error occurs, this is not a printer malfunction. These errors 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.

  • Page 50: Sensors

    Note: When an unrecoverable error occurs, turn off the power supply immediately. 3.4 Sensors 3.4.1 Paper Sensors The printer has two paper sensors. 3.4.1.1 Roll paper near-end sensor The roll paper near-end sensor uses the diameter of the roll paper to detect whether the remaining paper is getting low.

  • Page 51: Offline

    TM-T88IV Technical Reference Guide 3.4.3 Offline This printer is not equipped with an online/offline switch. The printer automatically goes offline under the following conditions: • During power on (including resetting with the interface) until the printer is ready • During the self-test •...

  • Page 52: Nvram (Non-Volatile Memory)

    Note: When DIP SW2-1 is ON, the printer will not become BUSY even if printer hardware stops operating. • When an error has occurred • When the cover is open • When printing has stopped for a paper out • When paper is fed by the FEED button 3.5 NVRAM (Non-volatile Memory) NVRAM is mounted on this printer, and bitmap images (for example, business logos) or other...

  • Page 53: Notes On Printing 2-Dimensional Code

    TM-T88IV Technical Reference Guide 3.7 Notes on Printing 2-Dimensional Code The TM-T88IV supports 2-dimensional code printing. Be sure to follow the notes below when printing 2-dimensional codes. • When printing PDF417 (2-dimensional code), it is recommended to set the height of one module of the symbol to three to five times the width of one module, also making sure that the total height is almost 5 mm {0.20"} or more.

  • Page 54: Faq List

    3.10 FAQ List Listed here are the most-asked questions (Q) and answers (A). 1. Look for information relating to your inquiry or problem in the questions. 2. Then, follow the instructions described in the “A” sentence below it. 3.10.1 Q: Why has my print data dropped out? A: Check the handshake process.

  • Page 55: Q: I Cannot Print Part Of Page 0 In Visual Basic. Why

    TM-T88IV Technical Reference Guide NOTES (*1) Operating the printer with incorrectly installed devices voids the warranty. (*2) Connecting devices other than the drawer open/close switch voids the warranty. (*3) Using a drawer or a drawer kick-out connector with an input current of 1 A or more may cause an over current, which will cause the device to malfunction.
  • Page 56 3-16 Application Development Information Rev. A...

  • Page 57: Chapter 4 Esc/Pos Command-Related Information

    TM-T88IV Technical Reference Guide Chapter 4 ESC/POS Command-related Information This chapter introduces the printer operation settings, which can be made by using ESC/POS commands, and precautions for those operation settings. 4.1 NV Memory (Non-volatile Memory) The printer’s NV memory can be roughly divided into three parts: •...

  • Page 58: Printer Status

    Note: For details on NV graphics and NV bit images, see the “ESC/POS Application Programming Guide.” 4.2 Printer Status There are three ways to get the printer status, and each method has the following features. For details, see the “ESC/POS Application Programming Guide.” •...

  • Page 59: Chapter 5 Product Specifications

    TM-T88IV Technical Reference Guide Chapter 5 Product Specifications 5.1 Product Specifications (TM-T88IV) Table 5-17 Specifications Print method Thermal line printing Print width Standard: paper width of 80 mm — print width of 72 mm {2.84"}, 512 dot positions Cut type...

  • Page 60: Print Specifications (Tm-T88Iv)

    5.2 Print Specifications (TM-T88IV) Table 5-18 Print characteristics Characteristics Specifications Print method Thermal line printing Paper feed method Unidirectional with friction feed Print width 72 mm {2.84"} (80mm paper width model) Characters per line See table titled “Print width/characters per line,” below.

  • Page 61: Character Specifications (Tm-T88Iv)

    TM-T88IV Technical Reference Guide Table 5-20 Print speed Print control mode Unit Setting Print speed (approx.) Printing ladder bar codes mm/sec High-speed mode: Line space setting: 100mm/s {2.4"/s} and 2D code 4.23 mm {1/6"} mm/sec Low-speed mode: Line space setting: 60mm/s {2.4"/s}...

  • Page 62: Printable Area (Tm-T88Iv)

    5.5 Printable Area (TM-T88IV) For 80mm paper width model: The printable area of a paper with width of 79.5 ± 0.5 mm {3.13 ± 0.02"} is 72.2 ± 0.2 mm {2.84 ± 0.008"} (512 dots) and the space on the right and left sides are approximately 3.7 ± 2 mm {0.15 ±...

  • Page 63: Print Position Versus Cutter Position (Tm-88Iv)

    TM-T88IV Technical Reference Guide 5.6 Print Position versus Cutter Position (TM-88IV) The following illustration shows the relationship between print position and cutter position. Final line of previous receipt Manual cutter position Approx. 29 mm Autocutter blade position Approx. 15 mm...

  • Page 64: Overview Of External Dimensions (Tm-T88Iv)

    5.7 Overview of External Dimensions (TM-T88IV) 5.7.1 External Dimensions The dimensions in the figure below are common to both the TM-88III and TM-88III. ❏ Height 148 mm {5.83"} ❏ Width 145 mm {5.71"} ❏ Depth 195 mm {7.68"} ❏ Weight Approx.

  • Page 65: Operating Specifications (Tm-T88Iv)

    Acoustic noise Operating: Approximately 55 dB (Bystander position) NOTE: The values above are measured in the Epson evaluation condition. The acoustic noise differs depending on the paper used, printing contents, or the setting values such as print speed or print density.
  • Page 66 5-8 Product Specifications Rev. A...

  • Page 67: Appendix A Interfaces And Connectors

    TM-T88IV Technical Reference Guide Appendix A Interfaces and Connectors A.1 RS-232 Serial Interface A.1.1 Interface Board Specifications (RS-232-compliant) Table A-1 Serial interface specifications Item Specifications Data transfer method Serial Synchronization Asynchronous Handshake Select one of the following with DIP SW1-3: ❏...

  • Page 68: Functions Of Each Connector Pin

    A.1.2 Functions of each Connector Pin Table A-2 Pin assignments Signal Signal name direction Function ⎯ Frame ground Output Transmission data Input Reception data Output Equivalent to DTR signal (pin 20) Input This signal indicates whether the host computer can receive data. SPACE indicates that the host computer can receive data.

  • Page 69: Code

    TM-T88IV Technical Reference Guide A.1.4 Code The hexadecimal numbers corresponding to the XON/XOFF codes are shown below. ❏ XON code: ❏ XOFF code: Note: When the printer goes from offline to online and the receive buffer is full, XON is not transmitted.
  • Page 70 Reverse mode The transfer of status data from the printer to the host proceeds in the nibble or byte mode. This mode allows data transfer from an asynchronous printer under the control of the host. Data transfers in the nibble mode are made via the existing control lines in units of four bits (a nibble).

  • Page 71: Interface Signals

    TM-T88IV Technical Reference Guide A.2.2 Interface Signals Table A-5 Connector pin assignments Source Compatibility Mode Nibble Mode Byte Mode Host Strobe HostClk HostClk Host/Ptr Data0(LSB) Data0 (LSB) Data0 (LSB) Host/Ptr Data1 Data1 Data1 Host/Ptr Data2 Data2 Data2 Host/Ptr Data3 Data3...
  • Page 72 Note: A signal name with a rule above it indicates an “L” active signal. Bidirectional communications cannot take place, unless all signal names for both sides correspond to each other. Connect all signal lines using a twisted-pair cable. Connect the return side to the signal ground level. Make sure the signals satisfy electrical characteristics.

  • Page 73: Appendix B Options And Consumables

    TM-T88IV Technical Reference Guide Appendix B Options and Consumables B.1 Roll Paper The table below shows the roll paper specifications. Table B-1 Paper specifications Type of paper Specified thermal paper Shape Roll Select from the following: Paper width ❐ 79.5 mm ± 0.5 mm (default) Internal diameter 12 mm {0.47"}...
  • Page 74 B.2.1.2 Case specifications ❏ Dimensions: 68 mm (D) × 136 mm (L) × 32 mm (H) (excluding projections) {2.68" × 5.35" × 1.26"} Refer to the figure below. ❏ Weight: Approx. 0.4 kg {14.11 oz} (excluding the AC cable) ❏ Material: Durability level: V0 ❏...

  • Page 75: Appendix C Character Code Tables

    TM-T88IV Technical Reference Guide Appendix C Character Code Tables C.1 Page 0 (PC437: USA, Standard Europe) (International character set: when “America” is selected) Note: The character code tables show only character configurations. They do not show the actual print pattern.

  • Page 76: Katakana

    C.2 Page 1 (Katakana) Rev. A C-2 Character Code Tables...

  • Page 77: Pc850: Multilingual

    TM-T88IV Technical Reference Guide C.3 Page 2 (PC850: Multilingual) Rev. A Character Code Tables C-3...

  • Page 78: Pc860: Portuguese

    C.4 Page 3 (PC860: Portuguese) Rev. A C-4 Character Code Tables...

  • Page 79: Pc863: Canadian-French

    TM-T88IV Technical Reference Guide C.5 Page 4 (PC863: Canadian-French) Rev. A Character Code Tables C-5...

  • Page 80: Pc865: Nordic

    C.6 Page 5 (PC865: Nordic) Rev. A C-6 Character Code Tables...

  • Page 81: Wpc1252

    TM-T88IV Technical Reference Guide C.7 Page 16 (WPC1252) Rev. A Character Code Tables C-7...

  • Page 82: Pc866: Cyrillic #2

    C.8 Page 17 (PC866: Cyrillic #2) Rev. A C-8 Character Code Tables...

  • Page 83: Pc852: Latin2

    TM-T88IV Technical Reference Guide C.9 Page 18 (PC852: Latin2) Rev. A Character Code Tables C-9...

  • Page 84: Pc858: Euro

    C.10 Page 19 (PC858: Euro) Rev. A C-10 Character Code Tables...

  • Page 85: Blank Page

    TM-T88IV Technical Reference Guide C.11 Page 255 (Blank Page) UD: undefined Rev. A Character Code Tables C-11...

  • Page 86: International Character Set

    C.12 International Character Set Rev. A C-12 Character Code Tables...

  • Page 87: Appendix D Tm-T88Iv/Tm-88Iii Comparison Table

    TM-T88IV Technical Reference Guide Appendix D TM-T88IV/TM-88III Comparison Table TM-T88IV TM-T88III 1. Print speed <High speed mode> <High speed mode> 200 mm/s maximum 150 mm/s maximum <Low power consumption mode> <Low power consumption mode> 150 mm/s maximum 70 mm/s maximum 2.
  • Page 88 15. Limitation of the function A buzzer function cannot be A buzzer function can be operated. when UB series interface operated on the UB series interface support that supports the buzzer function. Rev. A D-2 TM-T88IV/TM-88III Comparison Table...
  • Page 90 EPSON SEIKO EPSON CORPORATION Printed in Japan...

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