Triner Scale MP-20 User Manual

MP-20

Thermal Printer

Setup & Operation Manual

Revision 1.3

July 17, 2003

 2002-2003 Transcell Technology, Inc.

Contents subject to change without notice.

Transcell Technology, Inc.

975 Deerfield Parkway

Buffalo Grove, IL 60089

Tel [phone]

Fax [phone]

E-mail: [e-mail]

Web: www.transcell.net

IMPORTANT SAFETY INSTRUCTIONS

* Read all of these instructions and save them for later reference.

* Follow all warnings and instructions marked on the product.

* Unplug this product from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use
a damp cloth for cleaning.

* Do not use this product near water.

* Do not place this product on an unstable cart, stand of table. The product may fall, causing serious
damage to the product.

* Slots and openings on the housing and the back or bottom are provided for ventilation. To ensure
reliable operation of the product and to protect it from overheating, do not block or cover these
openings. Placing the product on a bed, sofa, rug or a similar surface, can block the openings. This
product should never be placed near or over a radiator or heat register. This product should not be
placed in a built-in installation unless proper ventilation is provided.

* This product should be operated from the type of power source indicated on the marking label. If
you’re not sure of the type of power available, consult your dealer or local power company.

* Do not allow anything to rest on the power cord. Do not locate this product where the cord will be
walked on.

* If an extension cord is used with this product, make sure that the total of the ampere ratings on the
products plugged into the extension cord do not exceed the extension cord ampere rating. Also, make
sure that the total of all products plugged into the wall outlet dose not exceed 15 amperes.

* Never push objects of any kind into this product through housing slots as they may touch dangerous
voltage points or short out parts that could result in a risk of fire or electric shock. Never spill liquid of
any kind on the product.

* Except as explained elsewhere in this manual, don’t attempt to service this product yourself.
Opening and removing those covers that are marked “Do Not Remove” may expose you to dangerous
voltage points or other risks. Refer all servicing on those compartments to service personnel.

* Unplug this product from the wall outlet and refer servicing to qualified service personnel under the
following conditions:
A. When the power cord or plug is damaged or frayed
B. If liquid has been spilled into the product.
C. If the product has been exposed to rain or water.
D. If the product does not operate normally when the operating instructions are followed. Adjust only
those controls that are covered by the operating instructions since improper adjustment of other
controls may result in damage and will often require extensive work by a qualified technician to
restore the product to normal operation.
E. If the product has been dropped or the housing has been damaged.
F. If the product exhibits a distinct change in performance, indicating a need for service.

1. INTRODUCTION

The MP-20 is a thermal printer suitable for use with various data communication devices.

This product is extremely compact and features extensive functions suited for a wide range of
applications. Please read this manual thoroughly to understand the printer before use.

1.1 Features

1. Compact desktop thermal printer

2. Light weight

3. High speed printing

4. Low power consumption

1.2 Accessories

The following attachments are included in this set aside from the printer itself. Please confirm.
Paper roll (1 roll)
AC adapter (1unit)
User’s manual (1 booklet)
Interface Cable
Gender Changer (9-9 male-male)

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2. TYPE CLASSIFICATIONS

2.1 Type

The product is categorized according to the naming plan indicated below.

MP-20

Model Name
Number of columns (default font)
20 : 20 columns/384 dots per line

2.2 AC adapter

Please use the exclusive adapter indicated below.
250115288 (AC 100-240V)

2.3 Specifications

Printing method Thermal dot line printing
Printing width 48 mm
Number of dots/line 384
Dots density 8 dots/mm
Printing speed 18 mm/second1
Feeding speed 24 mm/second
Standard paper roll size (W x L)

Interface Serial Interface (RS-232C)

Power DC9V / 2.8A
Current consumption Printing: 800 mA

Weight Approx. 360g (Paper roll excluded)
Dimension (W x D x H)
Operation temp. 0 to 50 °C
Storage temp. -25 to 65 °C
Fonts available Arial Narrow 14, Arial Narrow 20, Arial 14 Bold,

Default font CHIBLACK 242
Barcode Code 39
Max. Printable label size (W x L)
Error conditions detected Paper out, Head up, Overheat

57 mm× 36 m (Thermal)

Dia = 57 mm

Baud Rate, 9600

Data Bits, 8

Parity, None

Stop Bits, 1

Feeding: 300 mA
Stand By: 80 mA

120 mm × 170 mm × 92 mm

Arial 20 Bold, Lucida 16 Bold, Courier 20 Bold,

CHIBLACK 24

50 mm × 100 mm

1

Version 1.06 or higher only. Lower versions print at 10 mm/second.

2

Version 1.08 or higher only. Lower versions default to Lucida 16 Bold.

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3. EXTERNAL APPEARANCE AND PART DESCRIPTIONS

3.1 External Appearance

2

6

3

4

3.2 Part Descriptions

1. DC Power Jack: Insert one end of the enclosed AC adapter here.

2. Power/Status Lamp: Lit when power is turned ON and goes out when
turned OFF. Also used to indicate system status. See Section 3.3.

3. CLR Key: Use this key to clear a steady Red Status condition.

4. LF/FF Key: Paper is fed by one line (LF) when key is pressed and
released. Paper is continuously fed (FF) when key is pressed and held.

5

7

5. Interface Connector: Printer is connected to various hosts via cables.
Please ensure that both the printer and the host are turned off before
connecting.

6. Printer Cover: Opened to replace paper roll.

7. Print Head Cover: Removed to replace paper roll.

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1

3.2 System Status

Lamp Condition System Status Description Action

Steady Green READY System ready to accept any command and data

input

Flashing Green PROCESSING System is processing a command(s) Wait for process to finish

Steady Red CMDERR Command format error, or command/data buffer

overflow

Flashing Red SYSERR System error. May result from one of the

following reasons: Paper out, head in up position,

or over heat condition

Amber PENDING Task pending. Happens after self-test page has

finished

resend all commands after the one that caused the

Check paper, printer head, or wait a while for printer to

Send command to print test page again, or switch to

another mode and then change pending state to Ready

Send command or data to printer

Clear error state by pressing CLR key, and then

error

cool down in case of overheat

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4. OPERATION

4.1 Connection of the AC Adapter

(1) Connect interface cable between the printer and data communication device using supplied cable.
(2) Plug the AC adapter into the DC power jack on the printer.
(3) Plug of the AC adapter into a power outlet supplying the designated voltage. (Use of exclusive AC
adapter is recommended. Output is DC 9V, 2.8A. Avoid using power sources not conforming to this
specification.) The Power/Status Lamp should be green.

4.2 Installing the Thermal Paper Roll

NOTE: When the printer is shipped from the factory, the paper roll is pre-installed and the printer is
ready to operate. Use these instructions when it becomes necessary to replace the paper roll.
(1) Unplug the AC adapter from the printer.
(2) Open up the Printer Cover by squeezing at the front to release, then let it fall backwards on its
hinges.
(3) Remove the Print Head Cover by lifting on the tabs towards the back. Once the back tabs are
loose, continue to lift the print head cover off and set aside.
(4) Push the green print head release lever down and towards the rear of the printer.
(5) Feed new paper roll from the bottom of the print head roller until the paper comes out from the
top. Ensure that the paper edge is straight with respect to the roller, i.e. not crooked.
(6) Push the green print head release lever up and towards the front of the printer.
(7) Use the thumbscrew on the green print head release lever to feed about an inch of paper from the
roll.
(8) Replace the Print Head Cover by first inserting the front tabs, then installing the rear tabs until the
piece is locked into position. Ensure that the paper feeds out from the slot.
(9) Close the Printer Cover.
(10) Plug the AC adapter back into the printer.
(11) After turning ON the printer, press and hold the LF/FF key until 1 or 2 inches of paper is fed out
of the printer mechanism.

4.3 Self-Test Printing

A self-printing function is incorporated in this product to enable the printer to check itself. This
function is triggered by the following procedure.
(1) Make sure a paper roll in installed.
(2) Unplug the AC adapter from the printer.
(3) Press and hold the LF/FF key while plugging the AC adapter back in. Release the LF/FF key after
the self-printing operation has started. The printer prints out a test page and then returns to Ready
Mode.

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