Postek TW Series User manual

USER MANUAL

FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may
not cause harmful interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
This equipment may generate, use and/or radiate radio frequency energy. If not installed and used in full accordance with this
instruction manual, interference to radio communications may occur. This equipment complies with the limits for a Class A
Information Technology Equipment pursuant to Part 15 of the FCC Rules, which are designed to provide reasonable protection
against such interference when operated in a commercial environment. Operation of this equipment in a residential area may
also cause interference. In such case the user will be required, at own expense, to correct the interference using whatever
means necessary.
Trademarks
ARM is a registered trademark of Advanced RISC Machines Ltd.
Centronics is a registered trademark of Centronics Data Computer Corporation.
Microsoft, Windows are registered trademarks of Microsoft Corporation.
Copyright
Copyright © POSTEK Electronics Co., Ltd. All rights reserved. Under the copyright laws, this manual cannot be reproduced
in any form without the prior written permission of POSTEK. No patent liability is assumed, with respect to the use of the
information contained herein.
TW Series Thermal Printer User’s Manual
2nd edition November, 2016
Disclaimer
This manual has been validated and reviewed for accuracy. The instructions and descriptions it contains are accurate for the
POSTEK TW Series thermal printer at the time of this manual’s distribution. However, succeeding printers and manuals are
subject to change without notice. POSTEK assumes no liability for damages incurred directly or indirectly from errors,
omissions or discrepancies between the printer and this manual.
Although this manual describes and details many issues which could possibly occur, the manufacturer cannot warrant against
unpredictable conditions during the printing process. For problems such as the printer not working, lost or unclear print content,
etc., the manufacturer and resellers are responsible for correcting these issues (according to POSTEK Printer Warranty
Clauses). In no event shall the manufacturer or the resellers involved be liable for any damages whatsoever (including, without
limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss)
arising from the use of, the results of use or inability to use this product, even if the manufacturer has been advised of the
possibility of such damages.

TW Series User’s Manual
ii
Important Safety Instructions
Only qualified and trained service technicians should attempt to repair the printer.
Do not place the printer on or near a heat source.
Be sure that the output of the power adapter is 24 VDC and your power source matches the rating listed on the power
adapter. Be certain your power source is grounded.
To avoid getting an electric shock, do not use a worn or damaged power cord. If the power cord becomes damaged or
frayed, replace it immediately.
Do not insert anything into the ventilation slots or openings on the printer.
The printer and power adapter should never be operated in a location where either one can get wet. Personal injury may
result.
The printhead becomes hot while printing. To protect from damaging the printhead and risk of personal injury, avoid
touching the printhead.
To get increased printhead longevity and higher quality printouts, always use approved labels, tags and thermal transfer
ribbons. Approved supplies can be ordered from your POSTEK authorized reseller.
Static electricitythat accumulates on the surface of the human body or other surfaces can damage or destroythe printhead
or electronic components in this device. DO NOT touch the printhead or the electronic components with bare hands.
Place the printer on a flat, firm, solid surface.
Never operate in a high temperature environment.
Turn off the power when not in use for extended periods.
Follow all recommendations and setup instructions included in this manual.
Warnings:
This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be
required to take adequate measures (see FCC Notice).
Static electricity that accumulates on the surface of the human body or other objects can damage the print head or electronic
components in the TW Series printer. Observe proper electrostatic safety precautions when handling.

TW Series User’s Manual
iii
Content
Preface...............................................................................................................................................................................1
Important Notice, Read Me First .........................................................................................................................................1
Chapter1: Introduction...................................................................................................................................................2
Printer Specifications..........................................................................................................................................................2
Contents of Box..........................................................................................................................................................................3
Packing List................................................................................................................................................................3
Chapter 2: Setupand Use................................................................................................................................................4
Setting up the Printer..........................................................................................................................................................4
Main Parts and Structures...........................................................................................................................................4
Loading Path...............................................................................................................................................................8
Connecting the Printer................................................................................................................................................8
Power Connection..............................................................................................................................................................8
Interface Connection...................................................................................................................................................9
Loading the Ribbon............................................................................................................................................................9
Unloading the Ribbon.......................................................................................................................................................14
Loading the Media ...................................................................................................................................................................15
Standard Mode, Peel-off mode and ManuallyTear-off mode...................................................................................15
Cutting Mode............................................................................................................................................................20
Changing Media and Ribbon............................................................................................................................................22
Adjusting the Position of Media Sensor............................................................................................................................23
Reflective Media Sensor...........................................................................................................................................23
Transmissive Media Sensor.......................................................................................................................................25
Chapter 3: Operations and Settings..............................................................................................................................26
Basic Operations...............................................................................................................................................................26
Power Switch............................................................................................................................................................................26
The Front Panel.........................................................................................................................................................26
LCD Display.............................................................................................................................................................27
LCD Panel Operation................................................................................................................................................27
Tear-off......................................................................................................................................................................................31
Manual Peel-off................................................................................................................................................................31
Cutting Mode............................................................................................................................................................32
Adjusting the Pressure of Printhead..................................................................................................................................33
Adjusting the Tension of Ribbon......................................................................................................................................34
Windows Driver and Label Software................................................................................................................................35
Chapter4: Maintenance ................................................................................................................................................36
Cleaning the Printhead......................................................................................................................................................36
Cleaning the Platen Roller.......................................................................................................................................................37
Cleaning the Printer Interior....................................................................................................................................................37
Chapter5: Troubleshooting ..........................................................................................................................................38
LCD Error Messages................................................................................................................................................................38
LED Error Indications..............................................................................................................................................................39
Miscellaneous...................................................................................................................................................................40
Vertical Blank Lines Appear .....................................................................................................................................40
Printer Timeout Error Message........................................................................................................................................40
Data Sent butNot Printing........................................................................................................................................40
Poor Printing Quality................................................................................................................................................40
Recovery...........................................................................................................................................................................41
Appendix A: Interface Specifications...........................................................................................................................42
Appendix B: ASCII Table...........................................................................................................................................................43

TW Series User’s Manual
Preface, Important Notice
1
Preface
Your POSTEK TW Series high performance industrial barcode thermal printer features innovative state-of-the-art technology
and superior quality workmanship. Boasting an all metal frame and unique core construction, the TW Series printer achieves a
sturdy and durable stationary platform for smooth printing. A powerful control system can easily handle the most complicated
printing requirements, and advanced thermal transfer/direct thermal technology offers optimum printout clarity.
This manual explains how to set up and begin using your TW Series printer. It also provides detailed information on
configuring your printer, basic operations, care and troubleshooting.
Please read this manual carefully before using the POSTEK TW Series printer.
Important Notice, Read Me First
The thermal printhead can be easily damaged due to its precision construction. A printhead damaged by misuse is not covered
under the terms of the warranty. To ensure longevity of the printhead, please note the following:
1. DO NOT scrape or use tools that might damage the printhead surface.
2. To protect from corroding the printhead, DO NOT touch the printhead with bare hands.
3. DO NOT use thermal paper or thermal transfer ribbons which contain Sodium (Na), Potassium (K), Chlorine (Cl).
4. Keep printhead away from any form of liquid or dampness.
5. Only use a cotton swab dipped in anhydrous isopropyl alcohol to clean the printhead.
6. Always use high-quality consumables:
 When the printhead module is closed, pressure is placed directly onto the printhead; dirt such as paper scraps, sand,
dust and glue can scrape or damage the printhead.
 The thermal printhead is also easily damaged by static electricity, which may be generated by poor quality ribbons.
7. Always purchase high quality consumables.
Note: The TW Series printer functions under Direct Thermal or Thermal Transfer print methods. Thermal Transfer is set
as the factory default (requires ribbon for printing). However, if you need to print on Direct Thermal materials (ribbon is
not required), please contact your printer supplier or service provider to reduce the printhead pressure. This can protect
your printhead from early performance deterioration due to direct contact with the thermal media. Any physical printhead
damage caused by direct thermal printing is not covered under warranty.

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TW Series User’s Manual
Chapter 1: Introduction
Chapter 1: Introduction
Printer Specifications
Model
TW6 (203dpi)
TW6 (300dpi)
TW8
Printing method
Thermal Transfer
Printing resolution
203 dpi (8 dots/mm)
300 dpi (11.8 dots/mm)
Max printing speed
6 ips (152.4 mm/s)
4 ips (101.8 mm/s)
Max printing width
6.6″ (168 mm)
8.64″ (219.5 mm)
Max printing length
157″ (4000 mm)
79″ (2000 mm)
CPU/Memory
8 MB FLASH ROM, 32 MB SDRAM
Media
Width: 10.23″ (260 mm) max, 3.54" (90 mm) min.
Total thickness (including liner, if any): 0.0024″ (0.06 mm) ~ 0.019″ (0.48 mm).
Supply roll: OD 8.27″ (210 mm) max. ID 3″(76.2 mm) min.
Ribbon
Max width: 8.66″ (220 mm), Max length: 1968' (600 m)
Ink side: Out
Ribbon roll: OD 3.54″ (90 mm) max., ID 1″ (25.4 mm) min.
Media sensor
UP & Down Reflective (Adjustable) / Transmissive (Adjustable)
Fonts
Five built-in dot matrix ASCII fonts, user-downloadable TrueType Fonts
Barcode types
1D Barcode: Code 39, Code 93, Code 128/subset A,B,C, Codabar, Interleave 2 of 5, UPC A/E 2
and 5 add-on, EAN-13/8/128, UCC-128, etc;
2D Barcode: MaxiCode, PDF417, Data Matrix, QR, etc.
Interfaces
RS-232 Serial, USB Device 2.0, USB Host, 10/100 Mb Ethernet.
LCD display
Graphic Dot Matrix
Power rating
100-240 V, 50/60 Hz, 3.5 A
Weight
9 kgs
Dimensions
W 14.8″ (375 mm) x D 17.1″ (435 mm) x H 9.8″ (250 mm) with unfolded Media Stand.
W 14.8″ (375 mm) x D 14.2″ (360 mm) x H 9.8″ (250 mm) with folded Media Stand.
Operation environment
Temperature: 32F ~ +104F (0C ~ 40C)
Relative humidity: 5% - 85% non condensing
Storage environment
Temperature: -40F ~ +140F (-40C ~ 60C)
Relative humidity: 5% - 85% non condensing
Optional items
Cutter, Centronics Parallel, WiFi, Bluetooth 4.0

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TW Series User’s Manual
Chapter 1: Introduction
Contents of Box
Inspect the shipping carton(s) for possible shipping damage, if damage is discovered, notify the shipping company to report
the nature and extent of the damage.
Please check the items according to the Packing List. If there are any items missing, notify your authorized reseller.
Packing List
TW Series Printer
1 pc
Power Cord
1 pc
USB interface cable
1 pc
Quick Start Guide
1 pc
*CD-ROM
1 pc
*Note: CD-ROM pack includes TW printer driver, label design software, TW Series User’s Manual and the
Programming Manual.
USB Cable
TW Series Printer
Quick Start Guide
Power Cord CD-ROM

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TW Series User’s Manual
Chapter 2: Setup and Use
11
1
Chapter 2: Setup and Use
Setting up the Printer
Before setting up the printer consider the following:
1. Make sure there is adequate space around the printer for loading consumables and proper ventilation.
2. Make sure the printer is close to the host so the interface cable is easily accessible at either end.
Main Parts and Structures
2
3
4
5 12
6
7 13
8
9
14
10
Figure 2-1
1. LCD
2. READY Indicator
3. MEDIA Indicator
4. RIBBON Indicator
5. CANCEL Button
6. FEED Button
7. PAUSE Button
8. Media Calibration Button
9. MENU Button
10. Media Outlet
11. Right Cover
12. Media Stand
13. viewing window
14. Cover Handle

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TW Series User’s Manual
Chapter 2: Setup and Use
1
2
3
4
5
6 7
Figure 2-2
1. Ribbon Take-up Adjusting
Knob
2. Ribbon Take-up Spindle
3. Printhead
4.
Platen Roller
5.
Media Sensor
6.
Tear Bar
7.
Printhead Bracket

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TW Series User’s Manual
Chapter 2: Setup and Use
8
1 2 3 4 5 6 7
Figure 2-3
1. Printhead Module Plate
2. Handle
3. Printhead Module
4. Media Guide
5. Ribbon Guide Rod
6. Media Sensor
7. Media Guide Rod
8. Media Supply
9. Media Spindle
10. Media Roll Guide
11. Ribbon Sensor
12. Ribbon Supply
12
11
10
9