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 is 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-Pack ard 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.
Figure 19 Print head Thermal Elements (326M)..................................................37
Figure 20 Gap Detector (326M)...........................................................................39
326M User’s Guide vii
Figure 1 Front Angled View (426M)
Figure 2 Rear Angled View (426M)
viii 326M User’s Guide
Introduction
The Models 326M and 426M are high performance, Direct Thermal open frame printers
specifically designed for kiosk, OEM, and specialty applications. With an Industrial quality
design and steel construction, these printers provide continuous reliable printing at true high
volume throughput. Economically priced and loaded with features, Models 326M and 426M
reach print speeds up to 6 inches per second using a 32-bit microprocessor. Maintenance
downtime is minimized with the use of a high lift, easy to clean, or replace print head. Both
printers are able to be mounted into custom enclosures using front or bottom mounting.
This manual provides information needed to operate and maintain the 326M and 426M on a
daily basis. The resident Label Design Software II (LDSII) is a powerful and easy-to-use
control language that allows the creation of custom label formats. The software is AS
text based and can be interfaced to PC’s, mini-computers, main frames, and other special
purpose machines. The LDSII language uses inches as the default unit of measure but may
be set to use millimeters. All commands and parameters, unless noted otherwise, should
be entered using the selected unit of measure. The conversion values for the printer, using
the standard 203 dpi print head, are 8 dots per millimeter, 203 dots per inch, or 0.0049” per
dot. Refer to the LDSII Programming Guide (part# 880019-0100) for additional information
regarding LDSII programming instructions.
Among many other features, LDSII supports downloadable graphics and fonts, serial
numbering, flexible character spacing, reverse video, resident fonts, and many of the most
popular bar code symbologies. Bitmapped fonts and bar codes may be multiplied in size in
both the X and Y directions while being printed in 0, 90, 180, and 270 degree rotations.
Graphic images and custom designed label formats may also be stored in the printer’s flash
memory for high-speed access to achieve greater throughput performance.
The printers are capable of printing on most types of labels, pre-printed tickets, fax papers,
and tag stocks or varying thickness. The 326M and 426M are also capable of detecting
registration marks that enable it to print on media that contains die-cut, blow-hole, black-line
sense marks, and continuous media. The printers also provide three different cutter types;
full guillotine, full/partial guillotine, and rotary cutter. These cutter options provide a means
of cutting media of varying thickness to handle even the most demanding applications.
Many printer applications use the same label format, but change the data on every label.
This is not a problem for the 326M and 426M printers, data may be changed without
downloading the same fixed format or fixed data field. This, along with the available serial
communication speeds, increases data access time and productivity. Providing the user
with high performance desired for a low cost.
326M User’s Guide1
2 326M User’s Guide
Chapter 1: Printer Specifications
1.1 General Specifications
Width * 9.25” (235mm)
Height * 4.25” (108mm)
Depth * 4” (102mm)
Weight * 4.18 lbs. (1.9 kg)
Electrical Auto-sensing 90-264 VAC ; 50-60 Hz
Minimum Current 4.2 Amps
Temperature 40° F – 104° F (5° C – 40° C) Operating
Humidity 10% – 85%, non-condensing
SRAM Memory 32MB
Flash Memory 8MB
Agency Approvals
Interface Communications:
RS-232 Serial Network Connectivity
RS-232, 9 pin D-Sub connector (DCE) 10BASE-T
Flow Control: XON, XOFF, and CTS
Parity: Odd, Even, and None Protocols: TCP/IP
Data Bits: 7 or 8
USB (Universal Serial Bus)
Version 1.1 supported
Table 1 General Specifications
Designed to meet CUL, CE, and to comply with
FCC Class A.
Hosts: Windows® NT, 95, 98, and 2000
1.2 Printing Specifications
Print Type Direct Thermal
Print Resolution
Maximum Print Speed
Maximum Print Width
Print Length
Table 2 Printing Specifications
* NOTE: Listed specifications are based on a standard print mechanism and may vary
50” (1270mm) using standard memory
25” (635mm) with 300 DPI option
326M User’s Guide3
Printer Specifications Chapter 1
1.3 Media Specifications
Media Types
Maximum Media Thickness
Maximum Media Width
Continuous, die-cut, preprinted and tag stock
either rolled (up to 8” in diameter) or fanfold.
.010” (.25mm)* see note below.
326M = 3.5” (90mm) ** see note below.
426M = 4.5” (115mm) *** see note below.
Table 3 Media Specifications
The printers may be optimally configured with a fixed media guides to assist in the
installation of media.
*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 infor mation regarding testing and evaluation of
thicker or rigid media types.
**NOTE: The 326M printer’s media path has a maximum width of 3.5” while the actual
printable width is 3.15” for the 203 DPI and 3.189” for the 300 DPI print head.
***NOTE: The 426M printer’s media path has a maximum width of 4.5” while the actual
printable width is 4.094” for the 203 DPI and 4.252” for the 300 DPI print head.
4 326M User’s Guide
2.1 Fonts
19 smooth bitmapped alphanumeric fonts from 6pt to 28pt including OCR-A
and OCR-B.
Downloadable font support.
Bitmapped fonts expandable in height and width.
Reverse image printing.
Rotated: 0 º, 90 º, 180 º, and 270 º.
Chapter 2: Features and Options
2.2 Graphics
Lines and boxes.
Direct Monochrome BMP image support.
Store fonts, scripts and/or graphics.
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),
Two-dimensional: PDF-417 and Data Matrix
Rotated: 0 º, 90 º, 180 º, and 270 º.
2.4 Special Features
Durable steel chassis that protects your investment, even in harsh
environments.
Rotating head mechanism for easy print head cleaning.
326M User’s Guide5
Features and Options Chapter 2
Adjustable media guides for easy label centering or fixed media bracket.
Software controlled contrast adjustment.
Downloadable monochrome BMP image support.
Internal statistical counters for inches and labels printed.
Remote printer interrogation.
Ethernet capability.
Standard USB version 1.1 capability.
Detects label gap, blackline, and blowhole using reflective and transmissive
sensors.
Field incrementing, decrementing and serialization.
Powerful Label Design Software (LDSII) that is easy to master.
User storable Flash m em ory.
On-site Flash memory updates.
2.5 Options
Full or partial cutter available in 3” or 4” versions.
Rotary cutter available in 3” or 4” versions.
Label Present Sensor (LPS).
Configurable sensor (Input 1) that may be customized for different functions
including a Low Stock indicator.
300 DPI (11.808 dots/mm) resolution print head.
Custom Media Handling
+24VDC 100 W Power Supply
Cleaning kit.
6 326M User’s Guide
Chapter 3: Getting Started
3.1 Unpacking and Inspection
The printers have been packaged in protective foam to help reduce the damage that may
occur during the shipment of product.
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 components ordered are
present and in good condition (see Figure 3 for an example). Additional items ordered may
be included in the foam accessory tray.
The protective foam and shipping container(s) should be kept and used if the printer is to be
shipped. Additional shipping materials may be ordered by contacting the Microcom
Corporation Service Department.
Figure 3 Printer Accessories (326M)
3.2 Connecting the Printer
Refer to Figure 4 and 5 for information regarding the proper printer connections.
326M User’s Guide7
Getting Started Chapter 3
3.2.1 Printer Power
Microcom Corporation offers a “desk type” universal power adapter as an option for the
326M and 426M printers. Any power adapter that conforms to the necessary specifications,
listed below, may be used. The printer requires a universal +24VDC 100 Watt power supply
that operates in the 90-264 VAC; 50-60 Hertz range; 4.2 Amps at a minimum. The power
supply should operate in an “output foldback mode” during an overload situation rather than
a shutdown and restart attempt (sometimes referred to as “Hiccup” mode). Contact your
Microcom Corporation representative for any questions regarding power adapter
requirements and/or specifications.
AC Input: 90-264 VAC, 50/60HZ
DC Output: +24Vdc, 4.2 Amps
Power Rating: 100 Watts
Overload Mode: Output Foldback Mode
Printer Power Connector: 4 Pin Power mini-DIN Connector
Table 4 Minimum Power Supply Specifications
Note: Verify that the power supply jack is plugged into the printer before
plugging the power cord into an electrical outlet
Figure 4 Connecting the Power Adapter (426M)
4-Pin Power Mini
Din Connector
8 326M User’s Guide
Chapter 3 Getting Started
Serial Port
3.2.2 Communication Interface
The printers may be interfaced to PC’s, mini-computers, main frames, and special purpose
machines. The 326M and 426M printers offer a standard RS-232 serial port, USB (version
1.1), and 10BASE-TX Ethernet as standard communication interface.
10 BASE T
Ethernet Port
Figure 5 Communication Connections (426M)
Cutter
Figure 6 Optional Component Connections
LPD /
INPUT 2
USB
Port
Remote
Button
RS-232
INPUT 1 INPUT 3
326M User’s Guide9
Getting Started Chapter 3
3.2.3 Optional Cutter Interface
The printer provides a connector on the rear panel for the optional cutter interface. Use this
connector when a cutter is installed on the printer. To prevent damage to the printer and/or
cutter, connect the cutter when the printer’s power is off. Refer to Figure 6 for the location
of the cutter interface connector. Refer to the LDSII Programming Guide for additional
information regarding the “^D506)” and “^D740)” cutter control commands.
3.2.4 Optional LPD / INPUT 2 Sensor
Port 1 on the printer’s rear panel provides an extra input signal to the printer that may be
used in conjunction with an optional sensor. This sensor is configured using the “^D508)”
command (refer to the LDSII Programming Guide) to set the desired polarity of the sensor.
Once the sensor is blocked or activated, the printer issues either the “>INPUT 2<” or
>LABEL/TAG PRESENT<” enquiry response that may be defined by the user to identify
custom meanings. Refer to the LDSII Programming Guide for additional information
regarding the operational commands required to use this input.
3.2.5 Optional Remote Button
Port 2 on the printer’s rear panel provides an extra connection that may be used with a
custom remote button in addition to the “Feed” button provided on the printer’s rear panel.
This button is configured using the “^D541)” command (refer to the LDSII Programming
Guide) to set the desired operation of the button. Refer to the LDSII Programming Guide for
additional information regarding the operational commands required to use this port.
3.2.6 Optional INPUT 1 Sensor
Port 3 on the printer’s rear panel provides another input signal to the printer that may be
used in conjunction with an optional sensor. This sensor is configured using the “^D509)”
command (refer to the LDSII Programming Guide) to set the desired polarity of the sensor.
Once the sensor is blocked or activated, the printer issues the “>INPUT 1<” enquiry
response that may be defined by the user to identify custom meanings. Refer to the LDSII
Programming Guide for additional inform ation regarding the operational commands required
to use this input.
3.2.7 Optional INPUT 3 Sensor
Port 4 on the printer’s rear panel provides an extra input signal to the printer that may be
used in conjunction with an optional sensor. This port is not yet active but will provide an
additional sensor input. Once the sensor is blocked or activated, the printer issues either
the “>INPUT 3<” enquiry response that may be defined by the user to identify custom
meanings.
10 326M User’s Guide
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