Epson TM-T88II Series- User Manual

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...

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-...

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.

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

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

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

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 ...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 &...

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...

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...

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...

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. ...

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...

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....

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...

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...

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...

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 ...

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...

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...

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...

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...

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 ...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 ...

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...

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...

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 ...

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...

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...

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...

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:...

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)...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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 ...

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...

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...

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...

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...

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...

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 ...

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...

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

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...

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...

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...

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...

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...

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...

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...

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...

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-...

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...

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...

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...

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 ...

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...

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...

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...

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. ...

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...

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...

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...

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 ...

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...

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...

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...

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...

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

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...

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 ...

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...

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...

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...

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 ...