Epson TM-T88II Series- Manuals

Page 2 - technical manual; EPSON; English

technical manual TM-T88 Series EPSON English 4006800

Page 3 - The contents of this manual are subject to change without notice.

All rights reserved. No part of this publication 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. No patent liability is assumed...

Page 4 - SEIKO EPSON CORPORATION

EPSON SEIKO EPSON CORPORATION Printed in Japan E9609140-0000SE

Page 5 - TM-T88 Series Technical Manual; FCC CLASS A; FCC Compliance Statement; For American Users; Modular type connectors

Rev. A i TM-T88 Series Technical Manual FCC CLASS A FCC Compliance Statement For American Users This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against ha...

Page 6 - ii; Introduction; can print on a paper roll. The printer has the following features:; Printing

ii Rev. A Introduction The TM-T88 (RS-232 serial interface specification) 1 and the T88P (parallel interface specification) are line printers that can print on a paper roll. The printer has the following features: Printing ❏ High speed printing approximately 16.5 lines/second (1/6 inch feed). ❏ Low-...

Page 7 - iii; Warnings, Cautions and Notes; Warnings must be followed carefully to avoid bodily injury.

Rev. A iii Warnings, Cautions and Notes WARNING: Warnings must be followed carefully to avoid bodily injury. CAUTION: Cautions must be observed to avoid damage to your equipment. Note: Notes have important information and useful tips on the operation of your printer.

Page 8 - iv; Revision Sheet

iv Rev. A Revision Sheet Revision Page Altered Item and Contents Rev. A

Page 9 - Contents; Chapter 1

Rev. A v Contents Chapter 1 Features and General Specifications Printer Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Printing Specifications . . . . . . . . . . . ...

Page 11 - vii; Chapter 5

Rev. A vii Chapter 5 Disassembly, Assembly, and Adjustment Before starting disassembly, assembly, and adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Small Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Page 12 - viii

Page 13 - Features and General Specifications; Printer Parts

Rev. A Features and General Specifications 1-1 TM-T88 Series Technical Manual Chapter 1 Features and General Specifications Printer Parts Figure 1-1 TM-T88 appearance ERROR POWER PAPER OUT FEED ERROR POWER PAPER OUT FEED Printer cover Control panel Cover open button Cutter cover

Page 14 - Printing Specifications; Thermal line printing

1-2 Features and General Specifications Rev. A Printing Specifications Printing method: Thermal line printing Dot density: 180 dpi × 180 dpi. The number of dots per 25.4 mm (1") Printing direction: Unidirectional with friction feed Printing width: 72 mm (2.83"), 512 dot positions Characters ...

Page 15 - Character Specifications; Auto Cutter; Number of characters:; Alphanumeric characters:; Cutting with one point left uncut (selectable by GS V)

Rev. A Features and General Specifications 1-3 TM-T88 Series Technical Manual Character Specifications Space between characters is not included. Characters can be scaled up to 64 times as large as the standard sizes. CPL = Characters per line Auto Cutter Paper feed speed: Approximately 2.76 inches/s...

Page 16 - Paper Roll Supply Device; Microswitch; Paper roll spool diameter:; Adjusting screw

1-4 Features and General Specifications Rev. A Paper Roll Supply Device Paper Specification Supply method: Drop-in paper roll Near-end sensor Detection method: Microswitch Paper roll spool diameter: Inside: 12 mm (.47") Outside: 18 mm (.71") Near-end adjustment: Adjusting screw Remaining amo...

Page 17 - CAUTION; Paper must not be pasted to the paper roll spool.; Printable Area; Figure 1-2 Printable area

Rev. A Features and General Specifications 1-5 TM-T88 Series Technical Manual CAUTION Paper must not be pasted to the paper roll spool. Printable Area Note: The print position within the printable area of the thermal elements for dots 257 to 512 is shifted approximately 0.07 mm (.003") in the pa...

Page 18 - Printing and Cutting Positions; Receive buffer selectable as 45 or 4K bytes using the DIP switch.; Electrical Specifications; Figure 1-4 Printing and cutting positions

1-6 Features and General Specifications Rev. A Printing and Cutting Positions Note: Numeric values used here are typical values; the values may vary slightly as a result of paper slack or variations in the paper. Internal Buffer Receive buffer selectable as 45 or 4K bytes using the DIP switch. Elect...

Page 19 - Conditions of acceptability; This unit is intended to be supplied by a SELV circuit only.; Reliability; Figure 1-5 Printing pattern

Rev. A Features and General Specifications 1-7 TM-T88 Series Technical Manual EMI and Safety Standards Applied (EMC is tested using the EPSON PS-170 power supply) Conditions of acceptability 1. This component has been judged on the basis of the required spacing in the Standard for Information Techno...

Page 20 - External Dimensions and Weight; Environmental Conditions; Figure 1-6 Operating temperature and humidity range

1-8 Features and General Specifications Rev. A Acoustic noise: Operating: Approximately 55 dB (Bystander position) External Dimensions and Weight Height: Approximately 148 mm (5.83") Width: Approximately 145 mm (5.71") Depth: Approximately 195 mm (7.68") Weight: Approximately1.8 kg (3.96...

Page 21 - Major Component Specifications; M-T88 Printer Mechanism; Paper Feed Motor; Connectors; Figure 1-7 Connector panel external appearance; Reflection type photo sensor; Cutter motor voltage:

Rev. A Features and General Specifications 1-9 TM-T88 Series Technical Manual Major Component Specifications M-T88 Printer Mechanism Paper Feed Motor Print Head Unit Paper-end Sensor Paper Roll Near-end Sensor Auto-cutter Unit Connectors (*) The shape of the interface connector is different from the...

Page 22 - Power Supply Connector; Figure 1-8 Power supply connector; +24 V is always output through pin 4 during power on.; Drawer kick-out connector pin assignments

1-10 Features and General Specifications Rev. A Shell 2 3 1 Power Supply Connector This connector is used to connect the printer to an external power source. Figure 1-8 Power supply connector Note: Be sure to connect the ground wire to the printer using the FG screw on the bottom of the printer. Dra...

Page 23 - Pin 4 must be used only for the drawer; Drawer kick-out drive signal; Output voltage: Approximately 24 V; Figure 1-10 Drawer kick-out drive signal output waveform

Rev. A Features and General Specifications 1-11 TM-T88 Series Technical Manual CAUTION Pin 4 must be used only for the drawer . Figure 1-9 Drawer kick-out connector Drawer kick-out drive signal Output signal: Output voltage: Approximately 24 V Output current: 1A or less CAUTION: To avoid an overcurr...

Page 24 - Drawer open/close signal; Figure 1-11 Drawer circuitry; ON Time

1-12 Features and General Specifications Rev. A CAUTIONS: Use a shielded cable for the drawer connector cable. Two driver transistors cannot be energized simultaneously. The drawer drive duty must be as shown below. Be sure to use the printer power supply (connector pin 4) for the drawer power sourc...

Page 25 - RS-232 serial interface; Specifications

Rev. A Features and General Specifications 1-13 TM-T88 Series Technical Manual RS-232 serial interface Specifications Data transmission: Serial Synchronization: Asynchronous Handshaking: DTR/DSR or XON/XOFF control Signal levels: MARK = –3 to –15 V: Logic "1"/OFF SPACE = +3 to +15 V: Logic &...

Page 26 - TM-T88 series printer status and signals

1-14 Features and General Specifications Rev. A Interface connector terminal assignments and signal functions are described in the table below. TM-T88 series printer status and signals (continued) Pin number Signal name Signal direction Function 1 FG — Frame ground 2 TXD Output Transmit data 3 RXD I...

Page 27 - XON/XOFF transmit timing

Rev. A Features and General Specifications 1-15 TM-T88 Series Technical Manual Notes: When the remaining space in the receive buffer drops to 16 bytes, the printer status becomes "buffer full" and it remains "buffer full" until the space in the receive buffer increases to 26 bytes. T...

Page 28 - Serial interface connection example.; Notes

1-16 Features and General Specifications Rev. A Notes : • The XON code is <11>H and the XOFF code is <13>H. • In case 3, XON is not transmitted when the receive buffer is full. • In case 6, XOFF is not transmitted when the receive buffer is full Serial interface connection example. Notes...

Page 29 - Notes on setting DIP switch 2-1 to ON; When using a host that can transmit data when the printer is busy:; Notes on Resetting the Printer Using the Interface; Reset switching; Reset DC characteristics

Rev. A Features and General Specifications 1-17 TM-T88 Series Technical Manual Notes on setting DIP switch 2-1 to ON ❏ The printer mechanism stops but does not become busy when: an error has occurred, the cover is open, printing stops due to a paper-end, or paper is fed using the paper feed switch. ...

Page 30 - Buttons and Switches; Power Switch; Turn on the power only after connecting the power supply.

1-18 Features and General Specifications Rev. A ❏ AC characteristics: Minimum reset pulse width: TRS 1 msec (minimum) ❏ When using pin 6 (DSR) (DIP switch 2-7 is ON): ❏ When using pin 25 (INIT) (DIP switch 2-8 is ON): Notes: When a signal that does not satisfy the requirements above is input, printe...

Page 31 - Panel Button; For the serial interface model; FEED; DIP switch 1

Rev. A Features and General Specifications 1-19 TM-T88 Series Technical Manual Panel Button Note: The ESC c 5 command enables or disables the panel button. When disabled, the button will not function. DIP Switches For the serial interface model The DIP switches are located at the bottom of the case....

Page 32 - Transmission speed; Print density selection

1-20 Features and General Specifications Rev. A (*1)(*2) With the RS-485 serial interface specification (a dealer option), DIP Switches 2-7 and 2-8 are disabled. Notes: ❏ Changes in DIP switch settings (excluding switches 2-7 and 2-8 interface reset signals) are recognized only when the printer powe...

Page 33 - For parallel interface model

Rev. A Features and General Specifications 1-21 TM-T88 Series Technical Manual For parallel interface model DIP switch 1 DIP switch 2 Notes: ❏ Changes in DIP switch setting (excluding 2-8, interface reset signal) are recognized only when the printer power is turned on or when the printer is reset by...

Page 34 - Panel LED; Power; POWER; Error; Paper LED blinking pattern

1-22 Features and General Specifications Rev. A Panel LED s Power ( POWER ) LED: Green On: Power is stable. Off: Power is not stable. Error ( ERROR ) LED: Red On: Off line (except during paper feeding using the FEED button, self-test printing, and the error state) Off: Normal condition. Blinking: Er...

Page 35 - Figure 1-14 Panel Button and Indicators; Hexadecimal Dump; Hexadecimal Dumping Function

Rev. A Features and General Specifications 1-23 TM-T88 Series Technical Manual Note: A macro can be executed r times (r specifies the number of times to execute the macro) within the specified definition range. The macro can be executed continuously or can be executed by pressing the button. If the ...

Page 36 - Ending hexadecimal dumping; Paper Sensors; The printer has 2 paper sensors as follows:; LED indicator lights. If the sensor is enabled by ESC c 4, the; printer stops printing.

1-24 Features and General Specifications Rev. A Notes: If no characters correspond to the data received, the printer prints ".". Control commands are printed in bold for emphasis. During hexadecimal dumping, any commands other than DLE EOT and DLE ENQ do not function. Insufficient print data...

Page 37 - Cover Open Button; Standard Accessories; roll; Options; RS-485 interface board is equipped as a dealer option

Rev. A Features and General Specifications 1-25 TM-T88 Series Technical Manual Cover Open Button When the cover open button (located to the right of the cover) is pressed, the printer cover is opened. When the cover is closed, the cover open button is latched. Notes: Be sure to use the cover open bu...

Page 38 - Consumables; In Japan: Nakagawa Seisakujo; Ribbon Cassette

1-26 Features and General Specifications Rev. A Consumables Specified thermal roll paper: NTP080-80 In Japan: Nakagawa Seisakujo In U.S.A.: Nakagawa Mfg. (USA) Inc. In Europe: Nakagawa Mfg. (Europe) GmbH In Southeast Asia: N.A.K. Mfg. (Malaysia) SDN BHD [Original paper: TF50KS-E Nippon Paper Industr...

Page 39 - External Power Supply PS-170 Specifications; Input specifications

Rev. A Features and General Specifications 1-27 TM-T88 Series Technical Manual External Power Supply PS-170 Specifications Input specifications Output specifications Rated input voltage 90 to 264 V AC Rated frequency 50/60 Hz ± 3 Hz Rated input current less than 100 V A Power switch None Power LED N...

Page 40 - Chapter 2; Mechanisms and Operation; Component Connection Diagram; This printer is made up of the following major components:; Figure 2.1.1 Component connection diagram

Rev. A Mechanisms and Operation 2-1 TM-T88 Series Technical Manual Chapter 2 Mechanisms and Operation Component Connection Diagram This printer is made up of the following major components: ❏ M-T88 Printer Mechanism (Switch circuit board assembly-B) ❏ I/F circuit board assembly ❏ Main circuit board ...

Page 41 - Circuit Block Diagram; Main circuit board unit-A; Figure 2.2.1 Electrical circuitry component connection diagram

2-2 Mechanisms and Operation Rev. A Circuit Block Diagram The control circuitry of this printer is made up of the following major components: ❏ Main circuit board unit-A ❏ Switch circuit board assembly-B ❏ I/F circuit board assembly UB-S01: RS-232 Serial Universal BoardUB-P01: IEEE 1284 Parallel Uni...

Page 42 - Memory Map; CPU

Rev. A Mechanisms and Operation 2-3 TM-T88 Series Technical Manual Memory Map The following components are mapped in the memory map of this printer: ❏ CPU ❏ FLASH ROM (program U6, multi-lingual UN10) ❏ PS-RAM (pseudo static RAM) Figure 2.3.1 Memory map FFFFFFH FBFFFFH F7FFFFH 87FFFFH 7FFFFFH 3FFFFFH...

Page 43 - Paper Feed Mechanism; Power transfer mechanism; A PM type stepping motor is used for the receipt paper motor.

2-4 Mechanisms and Operation Rev. A M-T88 Printer Mechanism This printer consists of six mechanisms: a paper feed mechanism, a paper supply mechanism, a printer mechanism, a cutter mechanism, a cover mechanism, and a display mechanism. The following illustration shows the external configuration of t...

Page 44 - Head holding mechanism

Rev. A Mechanisms and Operation 2-5 TM-T88 Series Technical Manual A separate type gear train is used for this mechanism. When the motor rotates in reverse, the pressure angle relationship causes power to work in the direction that the gear train is separated, so reverse motor operation is impossibl...

Page 45 - Paper feed operation; Figure 2.4.4 Platen and thermal head contact

2-6 Mechanisms and Operation Rev. A Closing the frame cover causes the top of the heat shield to come into contact with the platen as shown in Figure 2.4.4. The thermal head separates from the stopper in the direction of arrow (3), and the thermal head tip comes into contact with the platen. The pre...

Page 46 - Head open mechanism

Rev. A Mechanisms and Operation 2-7 TM-T88 Series Technical Manual Head open mechanism The printer uses a drop-in paper roll system, and the thermal head is exposed whenever the frame cover is open (head open mechanism). In addition to simplifying paper loading, this design also makes paper jam clea...

Page 47 - Paper Supply Mechanism; Figure 2.4.7 Roll paper behavior during paper output blockage

2-8 Mechanisms and Operation Rev. A The paper outlet of the printer is covered, and even if paper output becomes blocked for some reason, there is enough room in the space between the platen and frame cover for accumulation of two or three normal length receipts (the length of one sheet is assumed t...

Page 48 - Near end sensor mechanism

Rev. A Mechanisms and Operation 2-9 TM-T88 Series Technical Manual Near end sensor mechanism The near end (N.E.) sensor lever is supported by the N.E. sensor holder so it can move. The spring force of the microswitch fixed by a screw to the N.E. sensor holder presses the N.E. sensor lever in the dir...

Page 49 - Printer Mechanism; Printing is performed according to the following steps:; Figure 2.4.10 Paper end sensor mechanism

2-10 Mechanisms and Operation Rev. A The shield plate provided around the sensor is grounded to the main frame. This printer is designed so that the sensors are exposed when the frame cover is open, but the shield plate acts as a lightning rod to protect sensors against electrostatic damage. The pap...

Page 50 - Data input and printing; Figure 2.4.11 Thermal head configuration

Rev. A Mechanisms and Operation 2-11 TM-T88 Series Technical Manual 3. The heat energy generated by the resistors is transmitted to the roll paper surface through the protective layer to the paper’s heat sensitive layer, causing coloration of the paper. Data input and printing Serial print data inpu...

Page 51 - Cutter Mechanism; Auto cutter mechanism; Figure 2.4.13 Thermal head block diagram

2-12 Mechanisms and Operation Rev. A The width of the energizing pulse is set to the optimum value in accordance with the paper feed speed, the temperature picked up by the thermistor, the head supply voltage, whether or not a dot was printed at the previous position, and the print pattern. Cutter M...

Page 52 - Stationary blade mechanism; Figure 2.4.15 Stationary blade mechanism

Rev. A Mechanisms and Operation 2-13 TM-T88 Series Technical Manual Stationary blade mechanism The stationary blade is attached to the frame cover, and the stationary blade holding spring presses the stationary blade against the frame cover. A blade shutter is installed on the frame cover, where it ...

Page 53 - Auto cutter operation; operation is stopped, and movable blade operation is stopped.; Cutter blade knob

2-14 Mechanisms and Operation Rev. A The movable blade support, spacer, movable blade, movable blade holding spring, and movable blade spring washer are equipped on the movable blade shaft, which is caulked to the paper cutter frame. The drive pin fits into an oblong hole in the movable blade, and r...

Page 54 - Emergency cutter; Cover Mechanism; Figure 2.4.17 Cutter blade knob external view

Rev. A Mechanisms and Operation 2-15 TM-T88 Series Technical Manual When the stationary blade is not in the home position during normal use, the paper cutter motor rotates in reverse to move the stationary blade to the home position. The cutter motor gear has a knob that makes it possible to move th...

Page 55 - Cover open sensor mechanism; Figure 2.4.19 Cover spring external configuration

2-16 Mechanisms and Operation Rev. A switch circuit board assembly-BSince the printer mechanism, including the auto cutter, will not operate properly if the frame cover is not closed correctly, a cover open sensor mechanism is equipped to detect when the frame cover is not closed correctly. A cover ...

Page 56 - Cover open button mechanism; Display Mechanism; Figure 2.4.21 Cover open button mechanism

Rev. A Mechanisms and Operation 2-17 TM-T88 Series Technical Manual Cover open button mechanism The cover open lever is supported by the main frame shaft. The cover open button along with its return spring is supported by the side of the paper guide. Pressing the cover open button while the frame co...

Page 57 - Main Circuit Board Unit-A

2-18 Mechanisms and Operation Rev. A In order to simplify maintenance, signal lines such as motors and sensors (except for the thermal head signals) are all connected to the switch circuit board assembly-B by the leads and connectors, and switch circuit board assembly-B is connected by FFC to the ma...

Page 58 - CPU and CPU Peripheral Logic Circuits; CPU signal assignments and functions

Rev. A Mechanisms and Operation 2-19 TM-T88 Series Technical Manual ❏ Power Supply Circuits Filter circuit+24V output circuit+5V output circuit CPU and CPU Peripheral Logic Circuits CPU The CPU (U4) of this printer has an 8-bit external data bus, a 16-bit internal data bus, and a 19.66MHz external c...

Page 59 - CPU signal assignments and functions (continued)

2-20 Mechanisms and Operation Rev. A 25 CLK CLK Not used. Open O TTL 26 GND GND GND terminal I (0V) 27 X1 X1 Crystal connection I ---- 28 X2 X2 Crystal connection O ---- 29 EA EA GND direct connection I TTL 30 RESET RESET CPU reset input; L: ON I ---- 31 WDTOUT WDTOUT Watchdog timer error detect; L:...

Page 61 - Gate array; Gate array signal assignments and functions

2-22 Mechanisms and Operation Rev. A ROM (2M or 4M bits) A printer control program and character generator data is written into FLASH ROM (U6). The control program controls basic printer operations, and all CPU (U4) control is performed in accordance with this program. Gate array The gate array (U5)...

Page 62 - Gate array signal assignments and functions (continued)

Rev. A Mechanisms and Operation 2-23 TM-T88 Series Technical Manual 33 HEAD1 Not used. Open O TTL 34 HEAD2 Not used. Open 35 HEAD3 Not used. Open 36 HEAD4 Not used. Open 37 HEAD5 Not used. Open 38 HEAD6 Not used. Open 39 HEAD7 Not used. Open 40 VSS VSS GND terminal I (0V) 41 VDD VDD Main power suppl...

Page 63 - Reset circuit

2-24 Mechanisms and Operation Rev. A Reset circuit The reset circuit protects against runaway CPU processing during unstable voltages immediately after power up, abnormal printing, and other unforeseen operation. Output of the OUT pin (PIN 6) of the reset IC (Us) is supplied to the CPU (U4) as a RES...

Page 64 - RS-232C interface specifications; M-T88 Control Circuit; Thermal head drive circuit

Rev. A Mechanisms and Operation 2-25 TM-T88 Series Technical Manual Reset from the host interface differs in accordance with interface specifications, as shown below. RS-232C interface specifications Selection between two signals (DSR signal or PIN 25 input signal) is possible. 1284 parallel interfa...

Page 65 - Cover open sensor circuit; Control Panel Control Circuit; DIP Switch Read Circuit; Output of the WDTOUT signal due to runaway processing by the CPU.; Drawer Kick Control Circuit

2-26 Mechanisms and Operation Rev. A Cover open sensor circuit The cover open sensor is located next to the thermal printer mechanism, and it is connected via switch circuit board assembly-B to the main circuit board unit-A. Detector signal R_COVER is input to the CPU (U4). Near end sensor circuit T...

Page 66 - Power Supply Circuit; Filter Circuit

Rev. A Mechanisms and Operation 2-27 TM-T88 Series Technical Manual Power Supply Circuit The table below shows supply voltage values and their applications. Filter Circuit A +24C DC (24 ±7%) power supply is input from connector CN1 after passing through the filter circuit. The filter circuit reduces...

Page 67 - I/F Circuit Board Assembly; I/F Circuit Board Assembly Types; Host interface circuit; Switchboard B; Switchboard set B has the following built-in electrical circuits:

2-28 Mechanisms and Operation Rev. A I/F Circuit Board Assembly This printer uses a TM Series universal interface, which allows support of a variety of different interfaces by changing the interface board. I/F Circuit Board Assembly Types ❏ EIA-TIA RS-232 Interface (built into TM-T88) ❏ IEEE 1284 In...

Page 68 - Chapter 3; Handling; Transport Precautions; Remove the paper from the unit.; Setup Precautions; Never pull out paper while the roll paper cover is open.

Rev. A Handling, Maintenance, and Repairs 3-1 TM-T88 Series Technical Manual Chapter 3 Handling, Maintenance, and Repairs Handling Transport Precautions Take the following steps to protect the unit against vibration and impact whenever transporting it: CAUTIONS: ❏ We recommend that each unit be pack...

Page 69 - Paper Precautions; Do not use this unit to print on label paper.

3-2 Handling, Maintenance, and Repairs Rev. A ❏ The heating element of the printer mechanism’s thermal head and the driver IC are easily damaged. Never allow these components to come into contact with metal or other hard objects. ❏ Never touch the printer mechanism’s (thermal head’s) heating element...

Page 70 - Loading roll paper; Remove the used paper roll core if there is one.

Rev. A Handling, Maintenance, and Repairs 3-3 TM-T88 Series Technical Manual Loading roll paper Note: Be sure to use paper rolls that meet the specifications. Do not use paper rolls that have the paper glued to the core because the printer cannot detect the paper end correctly. 1. Make sure that the...

Page 72 - About the mounting position of the paper near end sensor

Rev. A Handling, Maintenance, and Repairs 3-5 TM-T88 Series Technical Manual 2. Loosen the adjustment screw with a coin or flathead screw driver. 3. Move the tab up to the upper position. 4. Tighten the adjustment screw, and check to be sure that the detecting lever moves freely. 5. Replace the pape...

Page 73 - Using the power switch cover

3-6 Handling, Maintenance, and Repairs Rev. A Note: To use the printer mounted on a wall, you need the optional Wall Hanging Bracket: Model WH-10. This is a kit that contains roll-paper stoppers, brackets, screws for brackets, a wall mount, an operation panel sheet, and an installation manual. Using...

Page 74 - Problem Solving; Errors; See Chapter 4, Error Types and Processing.

Rev. A Handling, Maintenance, and Repairs 3-7 TM-T88 Series Technical Manual To remove it, use a flathead screw driver or similar tool. You can turn on or off the power switch using the two holes on the cover. Insert a pointed object into the holes and press the power switch. Problem Solving Errors ...

Page 76 - Maintenance Procedures

Rev. A Handling, Maintenance, and Repairs 3-9 TM-T88 Series Technical Manual Maintenance Procedures The inspection procedures described here are divided between two types: daily inspection, which can be performed by the individuals who use the unit on a daily basis, and periodic inspection, which sh...

Page 77 - Cleaning; Thermal head; Turn off the printer power before cleaning.; Platen roller on receipt side

3-10 Handling, Maintenance, and Repairs Rev. A Cleaning Thermal head CAUTIONS: ❏ Turn off the printer power before cleaning. ❏ Note that the thermal head (thermal element and radiation plate) becomes very hot during normal operation, creating the danger of burn injury. Be sure to wait for about 10 m...

Page 78 - Lubricants; Lubrication Standard; Lubrication points; See Lubrication Points Diagram section in the Appendix.

Rev. A Handling, Maintenance, and Repairs 3-11 TM-T88 Series Technical Manual CAUTION: Do not use alcohol, benzene, thinner, trychloroethylene, ketone or other similar agents for cleaning. Such agents can cause deformation, deterioration, and damage to plastic and rubber components. Dirt, lint, dust...

Page 80 - Chapter 4; Troubleshooting Guide; Troubleshooting flowcharts; Performing the Self-test; paper feed button once printing starts.

Rev. A Troubleshooting Guide 4-1 TM-T88 Series Technical Manual Chapter 4 Troubleshooting Guide The following tools make it easy to determine the cause of any problems that occur. Self-test This procedure tests control circuitry (other than serial communication and parallel communication send/receiv...

Page 81 - Troubleshooting Flowcharts

4-2 Troubleshooting Guide Rev. A Troubleshooting Flowcharts The troubleshooting flowcharts help to locate the causes of problems that are not immediately apparent. Power on POWER 1 No LED lit? 3 Start PAPER OUT LED lit? ERROR LED lit? ERROR LED flashing? No 4 Perform self-test. Operation OK? 5 No No...

Page 82 - POWER does not turn on.

Rev. A Troubleshooting Guide 4-3 TM-T88 Series Technical Manual Replace external power supply No Yes 1 POWER does not turn on. DC cable connection OK? Yes No Correctly connect DC cable. Operation OK? External power supply output voltage OK? (24v DC with no load.) No Fuse F1 conducting? No Operation ...

Page 83 - PAPER OUT LED does not light.

4-4 Troubleshooting Guide Rev. A Check paper end sensor Check near end sensor 2 PAPER OUT LED does not light. Near end sensor conducting OK? Yes No Operation OK? Replace near end sensor. No Yes Paper end sensor conducting OK? Yes No Replace paper end sensor. Operation OK? No Yes Replace main circuit...

Page 85 - ERROR LED is flashing.

4-6 Troubleshooting Guide Rev. A 4 ERROR LED is flashing. Perform necessary procedures to clear error condition. See Error types and processing section in this chapter. 4 END

Page 88 - Error Types and Processing; Error types; Errors that automatically recover; Errors that have the possibility of recovery; Table 4.2 Errors That Can Possibly Recover; Note

Rev. A Troubleshooting Guide 4-9 TM-T88 Series Technical Manual Error Types and Processing Error types Errors that automatically recover Note : Print head temperature error is not an abnormality. Errors that have the possibility of recovery Table 4.2 Errors That Can Possibly Recover Note : If the pa...

Page 89 - Errors that are impossible to recover; Table 4.3 Unrecoverable Errors; Impossible to recover.

4-10 Troubleshooting Guide Rev. A Errors that are impossible to recover CAUTION: When any error shown below occurs, turn off the power as soon as possible Table 4.3 Unrecoverable Errors Error Description ERROR LED Blinking Pattern Recovery R/W error in memory or gate array After R/W checking, the pr...

Page 90 - Printer Operation when an Error Occurs; Stops all printer operations.; Data Receive Error (only with the serial interface model); Parity error

Rev. A Troubleshooting Guide 4-11 TM-T88 Series Technical Manual Printer Operation when an Error Occurs The printer executes the following operations when detecting an error. ● Stops all printer operations. ● Goes BUSY (when DIP switch 2-1 is off). ● Blinks the ERROR LED. Data Receive Error (only wi...

Page 91 - Before starting disassembly, assembly, and adjustment; Small Parts

Rev. A Disassembly, Assembly, and Adjustment 5-1 TM-T88 Series Technical Manual Chapter 5 Disassembly, Assembly, and Adjustment Before starting disassembly, assembly, and adjustment Be sure to observe the following important points whenever performing disassembly, assembly, or adjustment. CAUTION: D...

Page 92 - Using This Manual; Titles

5-2 Disassembly, Assembly, and Adjustment Rev. A Using This Manual This section explains a number of general conventions used in this manual. Titles The titles that appear inside the sections of this manual describe the assembly and disassembly of major parts and blocks. Not all of the parts (servic...

Page 93 - Level 1 Disassembly and Assembly; Press the lever and open the roll paper cover.

Rev. A Disassembly, Assembly, and Adjustment 5-3 TM-T88 Series Technical Manual TM-T88 Series Disassembly, Assembly, and Adjustment Level 1 Disassembly and Assembly Cover-Thermal-AA 1. Press the lever and open the roll paper cover. 2. Remove the four {CC M3x4} screws. 3. Remove {cover-thermal-AA}. F...

Page 94 - To install, reverse the removal procedure.

5-4 Disassembly, Assembly, and Adjustment Rev. A Case-lower-AA block 1. Remove the three {CCS-tite M3x8} screws. 2. Remove {IC cover}. 3. Remove [case-lower-AA block]. CAUTION: During installation, make sure you do not pinch the {FFC} or {FFC-B} between the case and mechanism. Doing so can result in...

Page 96 - M-T88 printer mechanism block

5-6 Disassembly, Assembly, and Adjustment Rev. A Cover-cutter-AA Detach the two dowels and remove {cover-cutter-AA}. To install, reverse the removal procedure. M-T88 printer mechanism block 1. Detach the two {FFC} and {FFC-B} connectors from {main circuit board unit-A}. 2. Slide off {power switch as...

Page 98 - Level 2 Disassembly and Assembly

5-8 Disassembly, Assembly, and Adjustment Rev. A Level 2 Disassembly and Assembly Case-lower-AA block Remove the four {rubber foot Y24N5} from {case-lower-AA} while pressing the two tabs on the {rubber foot Y24N5} to cause bending on the inside. To install, reverse the removal procedure. Case-lower-...

Page 100 - Plate-circuit board block; side shown in the illustration on the

5-10 Disassembly, Assembly, and Adjustment Rev. A Plate-circuit board block CAUTION: When performing this procedure, be sure to use a grounded wrist band and take other measures to protect against electrostatic charge. Internal circuit board components become hot during normal use. Make sure they ha...

Page 102 - Level 3 Disassembly and Assembly; I/F circuit board assembly block

5-12 Disassembly, Assembly, and Adjustment Rev. A 4. Install {I/F circuit board assembly block] and secure it with the two {CPS-tite (O) M3x6} screws. 5. While attaching the {main circuit board unit-A} connector to the [I/F circuit board assembly block] connector with no gap, secure {main circuit bo...

Page 104 - M-T88 Printer Mechanism Disassembly and Assembly; No adjustments are required for the M-T88 printer mechanism.; Cable Routing; Unhook the cables on the left side of the printer.

5-14 Disassembly, Assembly, and Adjustment Rev. A M-T88 Printer Mechanism Disassembly and Assembly Note: No adjustments are required for the M-T88 printer mechanism. Level 1 Disassembly and Assembly Cable Routing 1. Open up the two hooks on the right side of the printer 1 mm or 2 mm and remove the c...

Page 106 - Switch circuit board assembly-B

5-16 Disassembly, Assembly, and Adjustment Rev. A Switch circuit board assembly-B 1. Remove the five cable connectors from {switch circuit board assembly-B}. 2. Remove the two {CBS-tite M3x5} screws and then {switch circuit board assembly-B}. To install, reverse the removal procedure. C D B A B A D ...

Page 107 - TM-T88 series Technical Manual; Cover-frame assembly block; The following is the installation procedure:

Rev. A Disassembly, Assembly, and Adjustment 5-17 TM-T88 series Technical Manual Cover-frame assembly block 1. Remove the two {RE 2.0} retaining rings and then {shaft-cover}. 2. Remove [cover-frame assembly block]. Note: See page 5-29 for further disassembly and assembly of [cover-frame assembly blo...

Page 113 - Detector circuit board assembly-A

Rev. A Disassembly, Assembly, and Adjustment 5-23 TM-T88 series Technical Manual Detector circuit board assembly-A 1. Remove the single {RE 2.5} retaining ring and then {lever-cover open}. 2. Disconnect the {lead wire-cover open detector} connector from {detector circuit board assembly-A}. 3. Remove...

Page 118 - To following is the installation procedure:

5-28 Disassembly, Assembly, and Adjustment Rev. A Frame assembly 1. Remove the single {CBS-tite M3x5} screw and then {spring-cover}. 2. Remove the two {CBS-tite M3x5} screws from {frame assembly}. To following is the installation procedure: 1. Secure the two {CBS-tite M3x5} on {frame assembly}. 2. I...

Page 119 - Note that {fixed blade} must be oriented correctly when installed.

Rev. A Disassembly, Assembly, and Adjustment 5-29 TM-T88 series Technical Manual Level 2 Disassembly and Assembly Cover-frame assembly block 1. Remove {spring-shutter}. 2. Remove the four {CBS-tite M3x5} and then {cover-roll paper}. 3. While peeling off the back seal, remove {label-handling-BA}. 4. ...

Page 121 - Auto cutter unit block

Rev. A Disassembly, Assembly, and Adjustment 5-31 TM-T88 series Technical Manual Auto cutter unit block 1. Remove the two {CB M2x2.5} screws and then {emergency cutter}. 2. While peeling the back seal, remove {label-handling-BB}. 3. Remove the single {CBS-tite M3x5} screw and then {cover-paper cutte...

Page 127 - Appendix; IEEE 1284 Parallel Interface; Compatibility mode

Rev. A Appendix A-1 TM-T88 Series Technical Manual Appendix IEEE 1284 Parallel Interface (Bidirectional parallel interface: in accordance with the IEEE 1284 nibble/byte modes) Copyright © 1994 by the Institute of Electrical and Electronic Engineers, Inc. Compatibility mode (Data transmission from ho...

Page 128 - Reverse mode; The

Appendix A-2 Rev. A Reverse mode (Data transmission from printer to host) The STATUS data transmission from the printer to the host is accomplished in the Nibble or Byte mode. This mode allows data transmission from the asynchronous printer under the control of the host. Data transmissions in the Ni...

Page 129 - Printer status and signals

Rev. A Appendix A-3 TM-T88 Series Technical Manual NC: Not connected, ND: Not defined Notes: ❏ A prefix "n" to signal names refers to low active signals. ❏ If the host does not have any one of the signal lines listed above, two-way communication fails. ❏ For interfacing, signal lines should ...

Page 130 - Interface cables should be as short as possible.; Precautions on receiving status from the printer

Appendix A-4 Rev. A ❏ Data transmission should not ignore the signal nAck or Busy. An attempt to transmit data with either signal, nAck or Busy, ignored can cause lost data. (Data transmission to the printer should be made after verifying the nAck signal or while the Busy signal is low.) ❏ Interface...

Page 131 - PAPER FEED; RS-485 Serial Interface; Serial

Rev. A Appendix A-5 TM-T88 Series Technical Manual Notes on setting DIP switch 2-1 to ON ❏ The printer mechanism stops but does not become busy when an error has occurred, the cover is open, printing stops due to a paper end, or paper is fed using the PAPER FEED button. ❏ When setting DIP switch 2-1...

Page 132 - Signal levels and communication control functions; When the cover is open.

Appendix A-6 Rev. A Notes: ❏ The handshaking data word length, baud rate, and parity depend on the DIP switch settings. ❏ Data transmitted from the printer has 1 stop bit (fixed). ❏ DR1 > DR2 CS1 > CS2 indicates that: Channel 1 is high. Channel 2 is low. ❏ DR1 < DR2 CS1 < CS2 indicates t...

Page 135 - XON/XOFF Transmit Timing; Data Format When Using RS-485; Figure A-1 S-485 Communication data format

Rev. A Appendix A-9 TM-T88 Series Technical Manual Notes: ❏ When the remaining space in the receive buffer drops to 16 bytes, the printer status becomes "buffer full" and it remains "buffer full" until the space in the receive buffer increases to 26 bytes. ❏ The printer ignores the d...

Page 141 - RS-232 Serial Interface Circuit Board Parts Layout

Rev. A Appendix A-15 TM-T88 Series Technical Manual RS-232 Serial Interface Circuit Board Parts Layout Figure A-3

Page 142 - IEEE 1284 Parallel Interface Circuit Board Parts Layout

Appendix A-16 Rev. A IEEE 1284 Parallel Interface Circuit Board Parts Layout Figure A-4 Figure A-5 R24 R53 R2 R26 C18 U7 U9 C22 19 1 CU9 R48 7W32 7W74 1 1 Q5 Q4 18 R31 R28 36 U5 C20 C11 RM12 HCT373 RM11 R12 R11 R36 R30 R43 R46 C4 C21 R15 R16 R10 C16 R42 R40 C17 R29 R27 R50 R25 R54 C5 R32 C27 R49 R39...

Page 143 - RS-485 Serial Interface Circuit Board Parts Layout

Rev. A Appendix A-17 TM-T88 Series Technical Manual RS-485 Serial Interface Circuit Board Parts Layout Switch Circuit Board Assembly-B Figure A-6 Figure A-7 C5 15143029 121617 R7 U1 1 1 R1 TP1 R9 13 25 1 14 R2 CN1 R3 R CMK-G2X R4 U2 R11 R12 R13 R8 R15 TP2 R5 R18 R14 R16 R19 R17 R10 R6 CN2 RS 485-30 ...

Page 144 - Case Unit Parts Name List; Case unit parts List

Appendix A-18 Rev. A Case Unit Parts Name List Case unit parts List Ref. # Part Name Note 100 CC M3x4 101 cover-thermal-AA 200 CCS-tite M3x8 201 IC cover 300 CCS-tite M3x8 301 case-thermal-upper-AA 302 switch panel -BA 400 cover-cutter-AA 500 CC M3x4 501 FFC-B 502 power switch assembly-C 600 case-lo...

Page 145 - M-T88 Printer Mechanism Parts Name List

Rev. A Appendix A-19 TM-T88 Series Technical Manual M-T88 Printer Mechanism Parts Name List M-T88 Printer Mechanism Parts Name List Ref. # Part Name Note 100 CBS-tite M3x5 101 switch circuit board assembly-B 200 RE 2.0 201 shaft-cover 202 spring-shutter 203 CBS-tite M3x5 204 cover-roll paper 205 lab...

Page 151 - RS-232 Interface Board

RS-232 Interface Board R2 1 8 2 7 3 6 4 5 RM2 1 8 2 7 3 6 4 5 RM1 CEN0 CEN1CEN2CEN3 CEN4 D1 1A1 2 1Y1 18 1A2 4 1Y2 16 1A3 6 1Y3 14 1A4 8 1Y4 12 2A1 11 2Y1 9 2A2 13 2Y2 7 2A3 15 2Y3 5 2A4 17 2Y4 3 1G 1 2G 19 U1 1 8 2 7 3 6 4 5 RM11 D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17...

Page 153 - RS-485 Interface Board

RS-485 Interface Board TP2 +5V R12 1 2 3 4 8 7 6 5 U2 R13 R9 R8 R1 R2 FG 1 SD/SD1 2 RD/SD2 3 RS/RD1 4 /RD2 5 DR/INIT1 6 SG 7 /DR1 8 /DR2 9 /CS1 10 /CS2 11 12 13 14 15 16 17 18 19 ER 20 21 22 23 24 INIT2 25 SHELL 0 CN1 FG TO HOST R6 R3 R11 R4 1 2 3 4 8 7 6 5 U1 R10 R5 CS1 CS1 CS2 CS2 DR1 DR2 RD1 RD2 ...