Microcom 428TM User manual

MODEL 428TM
DIRECT THERMAL PRINTER
OPERATOR’S MANUAL
PART NUMBER: 880042-0141
August 28, 2013CPC
Copyright ©2013 by Microcom Corporation, Lewis Center, Ohio –All rights reserved.
Printed in the United States of America

Proprietary Statement
This manual contains information proprietary to Microcom Corporation. This information is
intended solely for the use of parties operating and maintaining such equipment described
herein.
Product Enhancements
Microcom Corporation is committed to the continual improvement of performance and
quality in our products. For this reason, specifications are subject to change without notice.
Liability Disclaimer
Microcom Corporation makes every effort to assure that all information and specifications
contained in this manual are accurate; however, mistakes are sometimes made. Microcom
Corporation shall not be liable for any damages resulting in the use or misuse of this
product. The exclusion or limitation involving consequential or incidental damage does not
apply to all states; therefore limitation mentioned above may or may not apply.
FCC Compliance Statement
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 harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions contained in this
manual, may cause harmful interference to radio communications.
HyperTerminal®and HyperAccess®are trademarks of Hilgraeve Inc.
Centronics® is a registered trademark of Data Computer Corporation.
HP®and LaserJet II®are trademarks of Hewlett-Packard Company.
Arial®is a registered trademark of The Monotype Corporation.
TrueType®is a registered trademark of Apple Computer, Inc.
Microsoft®, Windows®, Windows NT®are registered trademarks of Microsoft Corporation.
Other products and company names mentioned herein may be trademarks of their
respective owners.

428TM Operator’s Manual - 880042-0141 i
Table of Contents
INTRODUCTION ...........................................................................................VII
CHAPTER 1: PRINTER SPECIFICATIONS............................................... 1-1
1.1 General Specifications ......................................................................................... 1-1
1.2 Printing Specifications.......................................................................................... 1-1
1.3 Media Specifications ............................................................................................ 1-2
CHAPTER 2: FEATURES AND OPTIONS ................................................ 2-1
2.1 Fonts .................................................................................................................... 2-1
2.2 Graphics............................................................................................................... 2-1
2.3 Bar codes............................................................................................................. 2-1
2.4 Special Features .................................................................................................. 2-2
2.5 Options................................................................................................................. 2-2
CHAPTER 3: GETTING STARTED............................................................ 3-1
3.1 Unpacking and Inspection.................................................................................... 3-1
3.2 Printer Power ....................................................................................................... 3-2
3.3 RS232 Serial Communication Interface ............................................................... 3-2
3.3.1 RS-232 Serial Cables ................................................................................... 3-3
3.4 USB Communication Interface............................................................................. 3-3
3.4.1 USB Driver Setup.......................................................................................... 3-3
3.5 Parallel Communication Interface ........................................................................ 3-5
3.6 Ethernet Communication Interface....................................................................... 3-5
3.6.1 Device Installer ............................................................................................. 3-5
3.7 Cash Drawer Option........................................................................................... 3-10
3.8 AUX Option ........................................................................................................ 3-10
3.9 MICPrinter USB Windows Driver ....................................................................... 3-10
3.10 Loading Media ................................................................................................... 3-27
3.11 Print Button and Status Indicator Light............................................................... 3-28
3.11.1 Print Button ................................................................................................. 3-29
3.11.2 Status Indicator Light .................................................................................. 3-29
3.12 Printer Modes..................................................................................................... 3-30
3.12.1 Idle Mode: GREEN .................................................................................... 3-30
3.12.2 Halted Mode: RED ..................................................................................... 3-30
3.12.2.1 Clear >LOW STOCK< error ................................................................. 3-30
3.12.2.2 Clear error with “single button error clear” ........................................... 3-30
3.12.2.3 Automatic Stock Eject on >LOW STOCK< .......................................... 3-30
3.12.3 Paused Mode: Solid or Flashing AMBER .................................................. 3-30
3.12.4 Diagnostic Mode ......................................................................................... 3-31
3.12.4.1 Entering Diagnostic Mode.................................................................... 3-31
3.12.4.2 Statistics Label..................................................................................... 3-31
3.13 Printer Integration .............................................................................................. 3-32
3.13.1 Environmental Considerations .................................................................... 3-33
3.13.2 Printer Mounting Orientations ..................................................................... 3-33
3.13.3 Media Mounting Considerations.................................................................. 3-34

ii 428TM Operator’s Manual - 880042-0141
3.13.4 Designing a Roll Support ............................................................................ 3-34
3.13.5 Designing for Fan-Fold Media ..................................................................... 3-35
3.13.6 Designing Media Guides ............................................................................. 3-35
3.13.6.1 Designing the Media Dispense Path .................................................... 3-35
3.13.6.2 Cables and Routing.............................................................................. 3-35
3.13.7 Power Supply Requirements....................................................................... 3-36
3.13.8 Electrostatic Discharges and Ground Connections ..................................... 3-36
3.14 TOF Sensor........................................................................................................ 3-37
3.15 Wristband Media Adapter Option ....................................................................... 3-39
CHAPTER 4: DESIGNING LABELS USING LDS ......................................4-1
4.1 Control Characters ............................................................................................... 4-1
4.2 LDS Design Exercises.......................................................................................... 4-1
4.2.1 Format Creation ............................................................................................ 4-2
4.3 Label Design: An Overview .................................................................................. 4-3
4.4 Label Header........................................................................................................ 4-4
4.4.1 HFM (Number of Fields in Layout) ................................................................ 4-5
4.4.2 LSX (Print Head Size X)................................................................................ 4-6
4.4.3 LSY (Label Size Y)........................................................................................ 4-6
4.4.4 WEB (Web Size) ........................................................................................... 4-6
4.4.5 GAP (GAP Size)............................................................................................ 4-6
4.4.6 DPS (Print Speed)......................................................................................... 4-6
4.4.7 LCB (Label Control Byte) .............................................................................. 4-7
4.4.7.1 Die-Cut and Blow-Hole Media (setting = 0) ................................................... 4-7
4.4.7.2 Continuous Media (setting = 2) ..................................................................... 4-7
4.4.7.3 Black Line Media (Reflective) (setting = 3).................................................... 4-8
4.4.8 AGD (Activate Gap Detector)........................................................................ 4-8
4.4.9 SPG (Steps Past Gap) .................................................................................. 4-8
4.4.10 OFX (Offset X Direction) ............................................................................. 4-10
4.4.11 OFY (Offset Y Direction) ............................................................................. 4-10
4.5 Sample Header .................................................................................................. 4-10
4.6 Label Format Fields............................................................................................ 4-11
4.6.1 TSN (Text String Number).......................................................................... 4-12
4.6.2 XB (X Beginning Coordinate) ...................................................................... 4-12
4.6.3 YB (Y Beginning Coordinate) ...................................................................... 4-12
4.6.4 CC (Character Count) ................................................................................. 4-12
4.6.5 TCI (Text Conversion Identifier) .................................................................. 4-12
4.6.6 CGN (Character Generator Number) .......................................................... 4-14
4.6.6.1 Embedded Fonts......................................................................................... 4-14
4.6.6.2 Downloadable Fonts and Graphics............................................................. 4-14
4.6.6.3 Embedded Bar Codes................................................................................. 4-16
4.6.7 FO (Field Orientation) ................................................................................. 4-17
4.6.8 FJ (Field Justification) ................................................................................ 4-17
4.6.9 CMX (Character Multiplier X Direction) ....................................................... 4-18
4.6.10 CMY (Character Multiplier Y Direction) ....................................................... 4-18
4.6.11 CS (Character Spacing) .............................................................................. 4-18
4.6.12 TSP (Text Starting Position)........................................................................ 4-18
4.6.13 ,,, (Reserved Spaces) ................................................................................ 4-18
4.6.14 AN (Attribute Number)................................................................................. 4-18
4.7 Line Draw ........................................................................................................... 4-19

428TM Operator’s Manual - 880042-0141 iii
4.8 Reverse Video ................................................................................................... 4-21
4.8.1 Black Box Reverse Video ........................................................................... 4-21
4.8.2 Auto Reverse Video.................................................................................... 4-22
CHAPTER 5 PRINTER COMMANDS ....................................................... 5-9
5.1 Special Printer Control Codes.............................................................................. 5-9
5.1.1 Enquiry Responses..................................................................................... 5-11
5.2 Printer Configuration Commands....................................................................... 5-13
5.2.1 Software Switches ...................................................................................... 5-13
5.2.1.1 Software Switch #1 ..................................................................................... 5-13
5.2.1.2 Software Switch #2 ..................................................................................... 5-14
5.2.1.3 Software Switch #3 ..................................................................................... 5-15
5.2.1.4 Software Switch #4 ..................................................................................... 5-16
5.2.1.5 Software Switch #5 ..................................................................................... 5-17
5.2.1.6 Software Switch #6 ..................................................................................... 5-19
5.2.1.7 Software Switch #7 ..................................................................................... 5-25
5.2.1.8 Software Switch #8 ..................................................................................... 5-26
5.2.2 Communication Port Configuration ............................................................. 5-28
5.2.2.1 Baud Rate................................................................................................... 5-28
5.2.2.2 Set Serial Port Source Command (Non-volatile-^D108) ............................ 5-29
5.2.2.3 Set Serial Port Source Command (Volatile -^D109) .................................. 5-29
5.2.2.4 Ethernet Telnet Pass-Through Mode.......................................................... 5-29
5.2.3 Print Head Size Commands........................................................................ 5-31
5.3 General Purpose I/O .......................................................................................... 5-32
5.4 Specialized Print Modes..................................................................................... 5-34
5.4.1 Synchronous Print Mode............................................................................. 5-34
5.4.2 USB Image Print Mode ............................................................................... 5-35
5.4.3 Contrast Adjustment Commands ................................................................ 5-36
5.4.3.1 Adjust Contrast Window (Volatile -^D35) ................................................... 5-36
5.4.3.2 Adjust Contrast Base (Non-volatile -^D36)................................................. 5-36
5.4.4 Slice Buffer Size and Set Starting Slice Number Commands ..................... 5-37
5.4.5 Printer Restart / Reboot Commands ........................................................... 5-37
5.4.6 Registration Commands ............................................................................. 5-38
5.4.7 Auto-size Commands.................................................................................. 5-39
5.4.8 AutoHeader Commands ............................................................................. 5-40
5.5 AutoLoad Media Commands.............................................................................. 5-41
5.5.1 AutoLoad + Form Feed............................................................................... 5-41
5.5.2 AutoLoad + Top-Of-Form............................................................................ 5-42
5.6 Printing Commands............................................................................................ 5-43
5.6.1 Basic Printing Commands........................................................................... 5-43
5.7 Label Header Parameter Override Commands.................................................. 5-44
5.7.1 Serial Number Commands.......................................................................... 5-45
5.8 Text String Commands ...................................................................................... 5-47
5.9 Cutter Configuration Commands........................................................................ 5-49
5.9.1 Cutter Type ................................................................................................. 5-49
5.9.2 Kiosk Cutter Commands ............................................................................. 5-49
5.9.2.1 Kiosk Cutter Mode ...................................................................................... 5-49
5.9.2.2 Kiosk Cutter Advance Distance Command ................................................. 5-49
5.9.3 Volatile Cutter Operation............................................................................. 5-50
5.9.4 Cutter Hold-off............................................................................................. 5-51

iv 428TM Operator’s Manual - 880042-0141
5.10 Dispensing Commands ...................................................................................... 5-51
5.10.1 Tag/Tear Operation..................................................................................... 5-51
5.10.2 Peel-and-Dispense Operation ..................................................................... 5-52
5.10.3 Load Advance/Retract Distance and Load Advance Delay......................... 5-52
5.11 View Printer Configuration and Statistics ........................................................... 5-52
5.12 Memory Commands ........................................................................................... 5-53
5.13 Printer Code Update........................................................................................... 5-58
5.14 Miscellaneous Commands ................................................................................. 5-59
CHAPTER 6: DOWNLOADABLE GRAPHICS...........................................6-1
6.1 FLASH Data Types .............................................................................................. 6-1
6.2 RAM Data Types .................................................................................................. 6-1
6.3Using the BMP2MIC.exe GRAPHIC Conversion Utility ........................................ 6-1
6.3.1 BMP2MIC.exe GRAPHIC Conversion Utility Procedure ............................... 6-2
6.4 Graphic Download Methods ................................................................................. 6-3
6.4.1 Uncompressed Graphic Downloads.............................................................. 6-3
6.4.2 Compressed Binary GRAPHIC Downloads................................................... 6-3
6.5 Advanced GRAPHIC Format Conversion for Programmers................................. 6-3
6.5.1 Save Compressed Graphics to RAM (D107)................................................. 6-4
6.5.2 Save Compressed Graphics to FLASH (D133) ............................................. 6-4
6.5.3 Binary Compression Algorithm...................................................................... 6-5
6.5.4 Uncompressed FONT to RAM (^D104)......................................................... 6-5
6.6 Graphic Image Data Format................................................................................. 6-6
6.7 Downloadable Graphics Commands .................................................................... 6-8
CHAPTER 7: DOWNLOADABLE FONTS..................................................7-1
7.1 FLASH Data Types .............................................................................................. 7-1
7.2 RAM Data Types .................................................................................................. 7-1
7.3 Using the Font Conversion Utilities ...................................................................... 7-1
7.3.1 SFP2MIC.exe Program ................................................................................. 7-2
7.3.2 FONTCV16.exe Program.............................................................................. 7-2
7.4 Font Download Methods ...................................................................................... 7-2
7.4.1 Compressed Binary Commands ................................................................... 7-2
7.4.1.1 Save Compressed FONT to RAM (D127) ..................................................... 7-3
7.4.1.2 Save Compressed FONT to FLASH (D135).................................................. 7-3
7.4.2 Uncompressed FONT to RAM (^D104)......................................................... 7-3
7.4.3 Save FONTS to FLASH (^D135)................................................................... 7-4
7.5 Font Structure....................................................................................................... 7-5
7.6 Downloadable Font Command Summary............................................................. 7-6
CHAPTER 8: BAR CODES ........................................................................8-1
8.1 Types of Bar Codes.............................................................................................. 8-1
8.1.1 Universal Product Code –Version A (UPC-A), TCI 12.................................. 8-1
8.1.2 Universal Product Code –Version E (UPC-E), TCI 13.................................. 8-1
8.1.3 Universal Product Code (UPC-E, send 6 digits), TCI 14 ............................... 8-2
8.1.4 Interleaved 2 of 5 (I2 of 5), TCI 15 ................................................................ 8-2
8.1.5 Code 3 of 9 (Code39), TCI 16 ....................................................................... 8-2
8.1.6 European Article Numbering System 13 (EAN-13), TCI 20........................... 8-3
8.1.7 European Article Numbering System 8 (EAN-8), TCI 21............................... 8-3

428TM Operator’s Manual - 880042-0141 v
8.1.8 Modified Plessey (MSI 1), TCI 24 ................................................................. 8-3
8.1.9 Modified Plessey (MSI 2), TCI 25 ................................................................. 8-3
8.1.10 Modified Plessey (MSI 3), TCI 26 ................................................................. 8-3
8.1.11 GS1 Databar, TCI 35 .................................................................................... 8-3
8.1.11.1 GS1 Databar Omni-Directional .............................................................. 8-4
8.1.11.2 GS1 Databar Truncated......................................................................... 8-4
8.1.11.3 GS1 Databar Stacked............................................................................ 8-4
8.1.11.4 GS1 Databar Stacked Omni-directional................................................. 8-4
8.1.11.5 GS1 Databar Limited ............................................................................. 8-5
8.1.11.6 GS1 Databar Expanded......................................................................... 8-5
8.1.11.7 How to Print an GS1 Databar Barcode .................................................. 8-5
8.1.12 Postnet (ZIP+4), TCI 36................................................................................ 8-6
8.1.13 Postnet (ZIP+6), TCI 37................................................................................ 8-7
8.1.14 MaxiCode, TCI 38 ......................................................................................... 8-7
8.1.15 Code 128 (Automatic Compression), TCI 40 ................................................ 8-9
8.1.16 Code 128 (Manual Compression), TCI 41 .................................................. 8-10
8.1.17 Codabar (Rationalized), TCI 42 .................................................................. 8-11
8.1.18 Code 93, TCI 43.......................................................................................... 8-11
8.1.19 PDF-417, TCI 46......................................................................................... 8-11
8.1.20 Datamatrix, TCI 47...................................................................................... 8-14
8.1.21 Intelligent Mail Barcode, TCI 48.................................................................. 8-19
8.1.22 Planet Code, TCI 49 ................................................................................... 8-21
8.1.23 UCC/EAN 128, TCI 50 ................................................................................ 8-22
8.1.24 UCC/EAN Text Information, TCI 51 ............................................................ 8-26
8.2 Bar Code Rotation ............................................................................................. 8-26
8.3 Bar Code Human Readable Text ....................................................................... 8-27
CHAPTER 9 CODE PAGE SWITCHING................................................... 9-1
9.1 What is Code Page Switching?............................................................................ 9-1
9.2 Character Sets ..................................................................................................... 9-1
9.3 Code Pages ......................................................................................................... 9-1
9.3.1 Code Pages .................................................................................................. 9-2
9.3.2 Danish Code Page........................................................................................ 9-3
9.3.3 860 Code Page............................................................................................. 9-4
9.3.4 Spanish Code Page...................................................................................... 9-5
9.3.5 850 Code Page............................................................................................. 9-5
9.3.6 German Code Page ...................................................................................... 9-7
9.3.7 865 Code Page............................................................................................. 9-8
9.3.8 Swiss Code Page.......................................................................................... 9-9
9.3.9 852 Code Page............................................................................................. 9-9
9.3.10 French Code Page...................................................................................... 9-11
9.3.11 863 Code Page........................................................................................... 9-12
9.3.12 Swedish Code Page ................................................................................... 9-13
9.3.13 437 Code Page........................................................................................... 9-13
9.3.14 Italian Code Page ....................................................................................... 9-15
9.3.15 British Code Page ....................................................................................... 9-16
9.3.16 USA Code Page.......................................................................................... 9-17
CHAPTER 10 PRINTER MAINTENANCE................................................ 10-1

vi 428TM Operator’s Manual - 880042-0141
10.1 Maintenance Schedule....................................................................................... 10-1
10.2 Thermal Printer Cleaning Card........................................................................... 10-1
10.3 Internal Cleaning ................................................................................................ 10-3
10.4 Print Head Maintenance..................................................................................... 10-4
10.5 Replacing the Drive Roller.................................................................................. 10-5
10.6 Adjusting Printhead Pressure............................................................................. 10-7
CHAPTER 11: TROUBLESHOOTING......................................................11-1
11.1 Troubleshooting Tips.......................................................................................... 11-1
INDEX........................................................................................................12-1
General Index .......................................................................................................... 12-1
List of Figures .......................................................................................................... 12-7
List of Tables............................................................................................................ 12-9
APPENDIX.................................................................................................13-1
Appendix A: Limited Warranty.................................................................................. 13-1
Appendix B: RMA Procedure ................................................................................... 13-3
Appendix C: ^D Command Summary ....................................................................... 13-5
Glossary...................................................................................................................... 13-23
Appendix D: User Notes ......................................................................................... 13-27

428TM Operator’s Manual - 880042-0141 vii
Introduction
The Model 428TM printer has been designed to provide solutions for the ticketing industry.
The printer uses the same reliable print mechanism found in the Model 428M printer. The
lockable printer box not only houses the media but protects your ticketing investment as
well. The print mechanism has been designed with a 4” printhead capable of printing up to
8” per second and is available in 203 or 300 dpi. It incorporates the latest features of the
proven LDS software found in earlier Microcom Corporation printers and also is capable of
using the STL (Standard Ticketing Language) found in a number of existing Ticket counters.
428TM Rear Side View
428TM Front Side View

viii 428TM Operator’s Manual - 880042-0141

428TM Operator’s Manual - 880042-0141 1-1
Chapter 1: Printer Specifications
1.1 General Specifications
Width* 7.3” (185 mm)
Height*7.4” (188 mm)
Depth*5.8” (148 mm)
Weight*10.2lbs. (4.6 kg)
Electrical +24 VDC
Current 3 Amps maximum
Temperature** 40° F –122° F (5° C –50° C), operating
Humidity 10% –85%, non-condensing
SRAM Memory 512 K
Code Flash Memory 512 K
User Flash Memory 8 MB
Agency Approvals Designed to meet CUL, CE, and complies with FCC
Class A
Interface Communications RS232, USB, Version 1.1 supported, Optional
Centronics Parallel, and Ethernet Ports
Flow Control XON/XOFF and CTS/RTS Hardware
Baud Rate 115200
Parity Odd, Even, and None
Data Bits 7 or 8
Table 1-1 General Specifications
* NOTE: Listed specifications are based on a standard print mechanism and may vary
based on final configuration.
** NOTE: Higher temperature applications are possible; please contact your Microcom
Corporation Sales representative for more information.
1.2 Printing Specifications
Print Type Direct Thermal
Print Resolution 203 DPI (8 dots/mm = 0.0049” per dot)
300 DPI (12 dots/mm = 0.0032” per dot)
Maximum Print Speed 8”/sec. (203 mm/sec.)
Maximum Print Width 203 DPI = 4.098” (104.10mm); 832 dots
300 DPI = 4.252” (108 mm); 1,280 dots
Maximum Print Length 50” (1,270 mm)
Minimum Print Length 0.25” (6 mm)
Table 1-2 Printing Specifications

Printer Specifications Chapter 1
1-2 428TM Operator’s Manual - 880042-0141
1.3 Media Specifications
Media Types Continuous, die-cut, preprinted and tag stock either rolled
or fanfold
Maximum Media Thickness* .011” (.2794 mm)
Maximum Media Width 4.38” (111 mm)
*NOTE: The printers may print on thicker media types depending on the pliability of the
material; however, this requires testing and evaluation. Contact your authorized Microcom
Corporation representative for additional information regarding testing and evaluation of
thicker or rigid media types.
Table 1-3 Media Specifications

428TM Operator’s Manual - 880042-0141 2-1
Chapter 2: Features and Options
2.1 Fonts
7 (203 DPI) smooth bitmapped alpha-numeric fonts from 6pt to 14pt.
TrueType® font capability using Microcom Corporation utility program.
19 downloadable standard font set.
All bitmapped fonts expandable in height and width.
Reverse image printing.
Rotated: 0 º, 90 º, 180 º, and 270 º.
2.2 Graphics
Resident Lines feature.
Storage of fonts, label formats and graphics in both volatile RAM and non-
volatile FLASH memory.
All BMP files may be converted using a Microcom utility program.
Rotated: 0 º, 90 º, 180 º, and 270 º.
2.3 Bar codes
One-dimensional
Code 39
Interleaved 2 of 5
Code 128 (A, B, C and
Auto)
Code 93
Codabar
Modified Plessey
UPC-A
UPC-E
EAN 8
EAN 13
UCC/EAN 128
Postnet.
Planet Code
Two-dimensional
GS1 Databar
Omni-directional
Truncated
Stacked
Stacked Omni-
directional
Limited
Expanded
PDF-417
Maxi code
Data matrix
Rotated: 0 º, 90 º, 180 º, and
270 º.
Expandable in height and
width.

Features and Options Chapter 2
2-2 428TM Operator’s Manual - 880042-0141
2.4 Special Features
USB 1.1
Easy print head cleaning
Tool less platen roller replacement
Adjustable media guides for easy label centering
Automatically adjustable reflective blackline sensor in media guide
Software controlled contrast adjustment
Detects label gap, black line, and blow-hole using reflective and
transmissive sensors
Field incrementing, decrementing, and serialization
Downloadable fonts and graphics (with data compression)
Internal statistical counters for inches and labels printed
Remote printer interrogation
On-site programmable flash memory updates
Autoload / Alignment of media
Automatic stock eject on paper-out
2.5 Options
+24 VDC Universal 100W Desktop Power Supply
300 dpi print head
Heavy Duty Rotary Cutter
Centronics Parallel Port
Ethernet Port
Pre-Stock Out Sensor Assembly
Low Paper Sensor Assembly
Wristband Option
Paper Supply Holders
Media Catch Trays
Cleaning kit

428TM Operator’s Manual - 880042-0141 3-1
Chapter 3: Getting Started
3.1 Unpacking and Inspection
The printer has been packaged in protective foam to help reduce the damage during
shipment.
Inspect the shipping container(s) for signs of damage. If damage is evident, contact the
shipping company immediately to file a damage claim.
After the printer is removed from the container(s), verify that all the items on the packing list
are present and in good condition. The picture below (See Figure 3-1) shows a 428TM and
optional power cord. Your shipment may contain different items.
The foam and shipping container(s) should be kept and used if the printer is to be shipped
at a later time. Additional shipping materials can be ordered by contacting the Microcom
Corporation Service Department.
Figure 3-1 Typical Printer Accessories

Getting Started Chapter 3
3-2 428TM Operator’s Manual - 880042-0141
Figure 3-2 Printer Rear Panel
3.2 Printer Power
The printer has a universal auto-sensing internal power supply that operates in the 100-240
VAC; 50-60 Hertz range. The three-prong female end of the power cord plugs into the
mating connector located on the back of the printer.
3.3 RS232 Serial Communication Interface
The printer provides a 9-pin female D-Sub connector, on the rear panel, for RS-232D serial
communication. The printer is configured as DCE (Data Circuit-terminating Equipment) so a
NULL modem cable is not necessary. A serial data cable is required to use serial
communications, refer to Table 3-1 below for correct cable configurations.
The factory settings, unless otherwise requested, are set at 115200 baud, 8 data bits, 1 stop
bit and no parity with hardware handshaking enabled. The baud rate is user selectable from
110 to 115,200 and uses software XON/XOFF flow control and/or hardware CTS/RTS
handshaking.
If XON/XOFF handshaking is used, the only signals that the printer requires are the RXD,
TXD, and GND signals. If the hardware handshaking is used, then the CTS and RTS signals
are required. The other signals are offered in the event that the host computer would
require them.
Power
Connection
USB Port
AUX Port
Optional Cash
Drawer Port
Optional Parallel
Port
RS232 Port
External Media
Entry Slot
Ethernet Port

Chapter 3 Getting Started
428TM Operator’s Manual - 880042-0141 3-3
3.3.1 RS-232 Serial Cables
The printer uses a standard through serial cable, typically referred to as a modem cable,
which may be purchased through Microcom Corporation or a local computer supply
company. A NULL-modem cable is not required because the printer is configured as DCE.
For a 25-pin serial communication port –Use a 25-pin female to 9-pin male cable.
For a 9-pin serial communication port –Use a 9-pin female to 9-pin male cable.
9 to 9 Pin Cable 9 to 25 Pin Cable
State
DE-9
Pin #
Signals /
Directions
PC
DE-9
Pin #
State
DE-9
Pin #
Signals /
Directions
PC
DB-25
Pin #
XX 1 DCD DCD 1 HI 1 DCD DCD 8
XX 2 TXD RXD 2 XX 2 TXD RXD 3
XX 3 RXD TXD 3 XX 3 RXD TXD 2
HI 4 DTR DSR 4 HI 4 DTR DSR 20
LO 5 GND GND 5 LO 5 GND GND 7
HI 6 DSR DTR 6 HI 6 DSR DTR 6
DC 7 RTS CTS 7 DC 7 RTS CTS 4
XX 8 CTS RTS 8 XX 8 CTS RTS 5
HI 9 +5V +5V 9 HI 9 +5V -
DC = DO NOT CARE XX = INDETERMINATE
Table 3-1 RS-232 Cable Configurations
3.4 USB Communication Interface
The 428TM printer provides a single USB port for communication to a host device. In order
to communicate with the printer, the USB driver must be installed on the host computer.
This may be downloaded at http://www.microcomcorp.com/drivers.htm. The Windows
combined driver model (CDM) may be installed on XP, VISTA, Windows 7 or Windows 8
allowing applications to access FTDI devices through either the D2XX DLL or a COM port
without having to change driver type. However, it should be noted that an application can
only communicate through one of these interfaces at a time and cannot send commands to
the D2XX DLL and the associated COM port at the same time.
3.4.1 USB Driver Setup
The Windows combined driver model (CDM) may be installed on XP, VISTA, Windows 7 or
Windows 8 allowing applications to access FTDI devices through either the D2XX DLL or a
COM port without having to change driver type. However, it should be noted that an
application can only communicate through one of these interfaces at a time and cannot
send commands to the D2XX DLL and the associated COM port at the same time.

Getting Started Chapter 3
3-4 428TM Operator’s Manual - 880042-0141
If there is an available Internet connection, Windows will silently connect to the Windows
Update website and install any suitable driver it finds for the device once connected.If an
manual install is desired, follow the instructions below.
Run the CDM.exe driver to install the FTDI based USB.
Click “Continue Anyway” if this dialog box pops up.
The next step is to install the D2xx.dll. While this is a communication port (RS-232)
emulator, no configuration of the RS-232 port is required.
Once installed, the FTDI USB device will show up as a USB SERIAL PORT (COMx) listed
under the “COMM PORTS AND LPT” within Device Manager. The “x” indicates the COMM
port number this will be used for that USB port connection to the printer.
Connect the power cable and the USB cable to the printer and turn the printer on. If already
connected, disconnect USB and then reconnect the USB. The FTDI USB device should
now recognize and install.