Opticon LPN5627, LPR5627 User Manual

User’s Manual

LPN5627, LPR5627 (Raster)

Miniature High Speed Laser
Fixed Position Scanner

Manual No. 25-ULPNR101-03
February, 2003

Orangeburg, NY 10962

www.OpticonUSA.com

8 Olympic Drive

Tel [phone]

Fax [phone]

Contents

Section 1 Introduction and Getting Started 1

Product Overview 1
Quick Start-Up Procedure 1

Section 2 Technical Specifications 2

Physical Specifications 2
Symbologies Supported 2
Optical Specification 2
Pitch 3
Skew 3
Tilt (rotation) 3
Curvature 4
LPR5627 Raster Pattern 4
Electrical Specification 5
RS232 Communications Specifications 5
Connector Pin Outs 5
Environmental Specifications 6
Ordering Information 6

Section 3 Positioning the Scanner 7

Achieving Optimum Performance 7
Measuring Scanner Performance 9
The Read Rate Test 9
Tips for Achieving High Throughput 11
Tips for Insuring Highest Data Integrity 11
Tips for Verifying the Presence of a Bar Code 12

Section 4 Configuring the Scanner 13

Configuring the Scanner 13
Default Setting 13

Section 5 Application Engineering Support 14

Common Causes of Poor Performance 14

Section 6 Laser Labeling 15

Section 7 Service and Maintenance 15

Appendix A How to Program the Scanner 17

Appendix B Computer Programming Commands 19

Appendix C Bar Code Programming Commands 24

Appendix D Dimensional Drawings 61

Appendix E Optical Performance 62

Organization of this Manual

This manual provides the necessary instructions for installing and using the Opticon LPN5627 and
LPR5627 Fixed Position Scanners. The manual is organized as follows:

Section 1 Introduction and Getting Started

Describes the general operation of the LPN5627 and LPR5627 scanners. Also provides a
Quick Start-Up Procedure that allows you to begin using the scanner immediately.

Section 2 Technical Specifications

Provides complete specifications, including mechanical details, optical performance,
RS232 communications and other technical data.

Section 3 Positioning the Scanner for Optimum Performance

Provides detailed instructions and tips for mounting and positioning the scanning to
obtain the best scanning performance. Application Notes describe guidelines for
maximizing specific characteristics.

Section 4 Configuring the Scanner

Describes how various parameters can be programmed to customize the scanner for
your specific application.

Section 5 Application Engineering Support

Discusses the most common questions and concerns when adapting the LPN5627 and
LPR5627 scanners in your application.

Section 6 Scanner Labels

Discusses the various labels on the product required by CDRH.

Section 7 Scanner Servicing and Maintenance

Discusses maintenance and cleaning procedures.

Appendix A How to Program the Scanner
Appendix B Computer Programming Commands
Appendix C Bar Code Programming Commands
Appendix D Dimensional Drawing
Appendix E Optical Performance

Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
Scanner

Section 1

Introduction and Getting Started

Product Overview

The LPN5627 and LPR5627 (Raster) Fixed Position Scanners are miniature, 500 scan per second, laser
bar code readers designed to be easily incorporated into host equipment. The high scan speed and small
physical size make the scanner easy to integrate into any hardware design. Durability and reliability are
assured.

Advanced microprocessor technology coupled with Opticon’s proven decoding algorithms result in high
speed operation with superior accuracy. The scanners are fully programmable allowing the user to
customize parameters including changing communication settings, selecting symbologies, adding prefixes
and appending suffixes. Programmable settings can be downloaded from the host CPU or computer
directly to the scanner.

The scanners are encased in compact, rugged metal enclosures. The compact size permits installation in
the tightest areas allowing great flexibility in mounting and positioning the scanner for optimum
performance.

Quick Start-Up Procedure

This section is for those who wish to start using the scanner before reading the complete manual. Only a
few steps are needed to make the scanner operable.



A Developers Evaluation and Test board is available to allow rapid installation of the scanner



Connect the scanner min-DIN connector to the board



Using the DB9 extension cable, connect the board to a DB9 serial port, such as COM 1 on you PC.



Be sure your PC or host device is running an application such as HyperTerminal that will accept
serial input.



The default communications parameters of the scanner are 9600 baud, 1 Start/Stop Bit, 8 Data bits,
No Parity, No Handshaking, No Flow Control) See Users Manual for details on establishing or
changing communications parameters.



Plug the 5V DC power supply into the jack on the board



There is a trigger test button on the scanner. There is a trigger button on the Evaluation and Test
board as well.

That’s it. Your PC and the scanner should now communicate.

To verify that the scanner and the PC are communicating properly, send the following command from
your PC keyboard to activate the scanner’s buzzer.
Send the command: <Escape> V5 <Carriage Return>
Note: Be sure to use capital letters, e.g. “V5”, not “v5”.
The buzzer should sound, indicating that good communications have been established

To test the scanner, press the trigger test button on the scanner itself or on the evaluation board. A red
laser light will be visible. Do not stare into the laser light.

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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This Quick Start-Up procedure will get you started. However, to best understand the full capabilities of
this scanner, you should read the complete manual.

Section 2
Technical Specifications

Physical Specifications

Case Material Zinc-die cast
Dimensions 1.9 x 1.5 x 0.9 in (WxDxH) (47.4 x 37.2 x 23 mm)
Weight 2.9 oz (80 grams ) w/o cable
Cable Length 6.5 Feet (2000 mm)
Connector 9-pin Male MiniDIN connector
Mounting 2 threaded (M-3) mounting holes

(not to extend more than 3 mm into the case)

Symbologies Supported

Codabar (NW-7)

♦

Code 39

♦

Code 93

♦

Code 128

♦

Industrial 2 of 5Interleaved 2 of 5

♦

MSI / Plessey

♦

WPC (UPC / EAN / JAN)

♦

IATA

♦

Optical Specifications

Scan Rate 500 scans per second ±10%
Light source 650 ±10nm visible laser diode
Narrow Bar Resolution 6 mil (0.15mm) at 0.9 PCS
Minimum PCS 0.45 (min. background reflectance of 70%)

Reading Distances LPN5627 (Specification) *

Near

Bar Code Density
40 mil (1.00 mm) 2.3” 12.6”
20 mil (0.50 mm) 2.3” 10.8”
10 mil (0.25 mm) 2.3” 7.5”
6 mil (0.15 mm) 3.5” 4.7”

* measured from front edge of scanner

Reading Distances LPR5627 (Raster – Specification) *

Bar Code Density
40 mil (1.00 mm) 2.3” 10.6”
20 mil (0.50 mm) 2.3” 9.1”
10 mil (0.25 mm) 2.3” 6.7”
6 mil (0.15 mm) 3.5” 4.3”

* measured from front edge of scanner

Distance

Near

Distance

Far

Distance

Far

Distance

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount

BCD

Scanner

Pitch

Hatched No-Read
Specular Zone

+5 °

Hei ght
of
barcode

-

10 °

Recommended operation (α) at + 60 degrees or less

Avoid specular reflection in the dead zone (hatched).

Skew

= 0 to 6°

Recommended operation (β) + 25 degrees

Tilt (Rotation)

β

(h = 35.4 mm,

= 0°, R = ∞)

θ

= 10°,

α

2

Recommended operation (θ) + 25 degrees (Barcode aspect ratio allowing laser to cover all bars).

θ
θ

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount

β

Scanner

Curvature

Jan 13: R = 20 mm (0.8”) or

h

JAN 13: R = 30 mm (1.2" ) or

Jan 8: R = 15 mm (0.6”).

JAN 8: R= 20 mm (0.8") or
Where: PCS 0.9,

Where: PCS 0.9, h = 100 mm,

2 = 10°,

α

Pitch=15°, Skew=0°, Tilt=0°

= 0°, θ

h = 35.4

= 0°

R

LPR5627 Raster Pattern

Raster sweep pattern as seen from front of scanner

Subtends a 1° angle from top to bottom of raster (at the centerline) as measured from the scanner.

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Electrical Specifications

Operating Voltage +5VDC + 10%
Current

Operating 150mA idle; 350 mA max. (Laser ON)
Surge 2.5 A max.

RS232 Communications Specifications

RS232 Data Transmission Format

Parameter

Timing Asynchronous
No. of Start Bits 1 bit
No. of Stop Bits 1 bit 1 or 2 bits
No of Data Bits 8 bit 7 or 8 bits
Parity None Odd / Even / None
Baud Rate 9600 baud 300 to 38,400 baud
Handshaking None Hardware / Software/ None

RS232 Transmit / Receive Character Format

TXD/

RXD

Default Optional Settings

Start

Bit LSB

7 or 8

Data Bits MSB

Parity

Bit

Stop

Bit

RS232 Data Format

RS232 Signal Level

Signal Name In / Out Mark/Off Space/On

TXD Out -5 to -15 +5 to +15
RXD In -3 to -15 +3 to +15

Connector Pin-outs

9 pin Male Mini-Din Connector

Pin No. Signal Color Direction

1 Trigger Brown Input
2* Good Read Yellow Output
3* Bad Read Orange Output

4CTSBlueInput

5RTSGrayOutput

6RDWhite-

7 SD Green

8+5V Red-

9 Signal Ground Black

Transmit Decoded Data CR

Receive

ESC Command CR
STX Command ETX

* NPN open collector, rated at 24 VDC, 30 mA maximum

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Environmental Specifications

Temperature

Operating +32 to +113° F (0° to +45° C )
Storage +14 to +140° F (-10° to +60° C)

Humidity (non- condensing)

Operating 20 to 85%
Storage 20 to 90%

Dust/Water Designed to meet IP54

Ambient Light Fluorescent or incandescent: below 5 kilolux

Ordering Information

Part No. Model

LPN5627RR1S-048* Front View (Linear)
LPR5627RR1S-048* Front View (Raster)

* Where "-048" is standard configuration. Other configurations are available as required.

Developer’s Test and Evaluation Kits (LPN-5627R101-SK1 and for the raster configuration
LPR-5627R101-SK1) are available that contain all the items needed to install and evaluate the scanners.
These kits include:



Scanner



Engineering Test & Evaluation Board



5V Power Supply



Extension Cable



User Manual

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Section 3
Positioning the Scanner

Achieving Optimum Performance

Three items greatly impact performance:

1) Distance (from the scan window) to the bar code

2) Specular Reflection

3) Quality of Bar Code Labels

1) Distance to the Bar Code

The operation of the scanner is similar to a camera. If you photograph an object that is out of focus, the
resulting picture will be blurry. The same is true with the scanner. If the bar code label is out of focus,
the scanner may have difficulty decoding what appears to be fuzzy bars and spaces.

Focal Distance

Ideally, the distance from the window of the scanner to the bar code label should be equal to the focal
distance of the scanner. For the LPN5627 / LPR5627 fixed position scanners, the nominal focal distance
is approximately 4.0” from the front edge of the scanner

Depth-of-Field

Just as with a camera, the scanner has a depth-of-field. It can read bar codes that are not precisely at
the focal distance - maybe a little closer, or a little farther away. However, if the bar code label is
positioned too far from the focal distance, the scanner may not be able to successfully decode it.

The depth-of-field varies based on the density of the bar code, i.e., the thickness of the bars. Very high
density bar codes (which have very narrow bars) are readable over a much shorter distance range than
low density bar codes with larger bars.

The following table shows the depth-of-field specifications (closest to farthest reading distances) for the
LPN5627 / LPR5627 scanners. The actual performance may differ slightly from unit to unit. Also, it is
important to note that this data was measured under ideal conditions using high quality bar code labels.
In a “real world” environment the conditions will not be as ideal. Therefore, the best practice is to
position the scanner at the center of the depth-of-field rather than at the extremes of its depth-of-field.

Depth-of Field LPN5627 (Specification)*

Near

Bar Code Density
40 mil (1.00 mm) 2.3” 12.6”
20 mil (0.50 mm) 2.3” 10.8”
10 mil (0.25 mm) 2.3” 7.0”
6 mil (0.15 mm) 3.5” 4.7”

* measured from front edge of scanner

Distance

Far

Distance

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Readable Bar Code Width LPN5627/LPR5627

(Field-of-View Specification Based Upon 40 Degree Sweep)

Distance

from Window

2.0” 2.0”

4.0” 3.5”

8.0” 6.4”

12.0” 9.3”

Max.

Width

The table above shows the field-of-view at various distances from the window. The field-of-view is the
maximum width that the scanner is capable of reading. It is the distance from the left edge of the view
to the right edge. A bar code label positioned anywhere within this field-of-view can be decoded. The
field-of-view is also a measure of the widest bar code label that can be read.

Remember

: The width of
a bar code label includes not only the bars and spaces but also the required white space (quiet zone) on
each end.

Good design policy is to position the barcode at the midpoint of the scanner’s depth-of-field and at the
center of the field-of-view. Do not position it near the extremes of the reading range.

Comparable depth-of-field parameters for the LPR5627 are the following:

Depth-of-Field LPR5627 (Raster - Specification) *

Bar Code Density

Near

Distance

Far

Distance
40 mil (1.00 mm) 2.3” 10.6”
20 mil (0.50 mm) 2.3” 9.1”
10 mil (0.25 mm) 2.3” 6.7”
6 mil (0.15 mm) 3.5” 4.3”

* measured from front edge of scanner

2) Avoiding Specular Reflection

Do not position the scanner at an angle that causes the laser light to be reflected directly back into the
scanner. This is called specular reflection. Too much reflected light can “blind” the scanner preventing a
good decode.

If the bar code label is located on a flat surface, specular reflectivity occurs between 0 to 10 degrees off
perpendicular. (See diagram) If the bar code label is located on a cylindrical surface, such as a test
tube, the angle of specular reflection is measured tangent to the curve. If the curved surface is also
moving, there may be more than one position causing specular reflection. The following diagram
indicates the area to avoid:

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Hatched No-Read
Specular Zone

+5 °

Hei g ht
of
barcode

-

10 °

3) Quality Bar Code Labels

The quality of the bar code label can affect the scanning performance. Poor quality labels are more
difficult to decode and may result in non-reads or potential misreads. The bar code label should be
printed to specifications. This means that the bars are printed within spec, with the correct widths, no
ink spread, crisps edges and no voids. There should be a sufficient quiet zone on both end of the bar
code label. For best results, the paper or label stock should have a matte finish to diffuse light. The
print contrast signal (which is a comparison of the reflectance of the bars and the background stock)
should be as high as practical.

Measuring Scanner Performance

Two methods are helpful in determining the optimum position of the scanner. The first method is to
program the scanner for Trigger Disable and Continuous Read modes. The scanner will be always on
and will continuously read the same bar code. Since the buzzer sounds each time the bar code is read,
the sound of the buzzer can be used like a “Geiger counter”. As the position of the scanner changes the
sound of the buzzer will change. The buzzer sound will be loudest and most continuous at the best
reading positions.

The Read Rate Test

The second method, the Read Rate Test, provides a mathematical calculation of scanning performance.
In this test the scanner scans a bar code 700 times and then calculates the number of those scans that
resulted in a good decode. That number, expressed as a percentage, will be transmitted to the host.
For example, 93% means that the scanner decoded the bar code symbol 93 times out of the 650 scan
attempts. By performing the Read Rate Test with the scanner mounted in various positions you can
determine which of those locations results in the best performance.

How to perform the Read Rate Test

Perform the following steps after you have correctly configured communications to the computer via your
RS232C port and power is made available to the scanner:

Send the command: <Escape> U8 <Carriage Return> Note: Be sure to use capital letters, e.g.
“U8”, not “u8”.

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The scanner will read the barcode continuously and will display the ratio of the number of successful
reads to the total number of attempts.

The printout on the screen will appear as follows:

(Example)

700d OK 93.5%
CODE-39 TEST

The number in the upper left indicates the number of times the decoder ran while scanning at 700 scans
per second. The number can be lower than 700 when reading noisy barcodes. The upper right
percentage indicates the ratio of the number of successful reads to the total number of attempts. By
positioning the scanner at the optimal distance from the barcode with the correct orientation and with a
grade-A quality barcode readings of 95% or higher are expected. Reset the scanner after testing.

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Application Notes

Tips for Achieving High Throughput

In some applications your primary objective may be to achieve the highest possible throughput rate. The
following list identifies the parameters and scanner settings that can maximize scanning and decode
throughput speed. Note, by emphasizing maximum throughput, other areas of performance may be
affected. For example, the number of non-reads could increase.

If high throughput is critical, consider some or all of these settings:

Operate in the Trigger Disabled mode. Operation of the trigger can require as much as 200

♦

msec before decoding begins, slowing down throughput rate.

Only enable those symbologies that you will be decoding.

♦

Eliminate all suffixes and prefixes.

♦

Minimize the number of redundant reads required before transmitting data.

♦

Transmit the decoded data at the highest baud rate, 38,400 baud.

♦

Disable buzzer functions.

♦

Tips for Insuring Highest Data Integrity

There are several parameters that can enhance your confidence that the correct bar code data is
transmitted. Note that by emphasizing the accuracy and security of the data other areas of the scanner
operation may be affected, for example, you may not achieve the highest throughput.

If accuracy and data integrity are critical, consider some or all of these settings:

Program the scanner to require a high number of redundant decodes prior to transmitting. For

♦

example, program the scanner to decode a bar code exactly the same way three consecutive times
before transmitting the data. Then decoding the bar code the same way 2 out of 3 times or any 3
out of 4 times is not sufficient. It must obtain three consecutive and identical decodes.

Utilize a predetermined, fixed-length of bar code. Program the scanner to only decode a bar code of

♦

that length. Bar codes of any other length will be ignored.

The quality of the printed bar code must be excellent.

♦

Use a bar code symbology that contains an internal check digit and program the scanner to calculate

♦

that check digit for validity prior to transmitting.

Do not use a symbology with poor internal verification, or subject to partial decodes, such as 2 of 5

♦

or MSI/Plessey.

Only enable those symbologies that you will be decoding.

♦

Transmit data at low baud rates to minimize communication errors.

♦

Enable the “Number of Characters Transmitted”. The scanner will calculate and transmit a number
indicating the total number of characters it is transmitting. Your host application program can compare
this number with the actual number of characters received to verify that the correct amount of data is
received.

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Tips for Verifying the Presence of a Bar Code

If the scanner is operated in the “trigger enabled” mode and the trigger is activated, one of three
conditions may occur:

A bar code is scanned and decoded. Decoded data is

transmitted
A bar code is scanned but is not decoded
(e.g., print quality was poor)
No bar code is present No data is transmitted

In some applications, when no data is transmitted, it may be important to know why. Was there a bar
code present that could not be decoded, or was no bar code present at all?

This requirement is common in applications such as automated blood analysis equipment. Test tubes
containing blood samples from many different people are loaded into a rack for automatic analysis. The
bar code on each tube ties that sample and the results back to a specific individual. If no bar code data
is transmitted it is critical to understand the reason.

Your Opticon scanner, when operated in the Trigger Enabled mode, can be programmed to transmit an
error message indicating whether or not a bar code was present. The following table shows the message
that will be transmitted for each condition.

No data is transmitted

Presence/Absence of bar code Scanner Transmits

Bar code was present and correctly decoded Decoded Data
No bar code was present <STX> “?” <ETX>
Bar code was present but could not be decoded <STX> “>” <ETX>

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Section 4
Configuring the Scanner

Since the operation of the LPN5627 / LPR5627 scanners are microprocessor controlled, it is possible to
modify or program its operation to match your specific application. Changes in parameter settings can
be accomplished two ways.

1. The scanner can be programmed by sending software instructions from the host PC to the scanner
via the RS232 connection.

2. The second method employs specially designed programming bar codes. Scanning these bar codes
instructs the scanner to modify specific parameters.

Programming Menus & Commands

Appendix A contains full instructions on how to configure the scanner as well as a complete listing of the
computer commands and programming bar codes that are available to customize the scanner for your
application.

Default Settings

When you modify or change any parameters, the scanner can be programmed to retain the new
parameter in memory, even if power interrupted or terminated. If for any reason the scanner is
instructed to return all parameters to default settings (U1), it will return to the default settings shown in
the following table.

Default settings are indicated by a pointing hand symbol (

Parameter Factory Default Setting

RS 232 Communications 9600 baud

8 data bits
1 stop bit
No parity

No handshaking
Trigger Function Enabled
Read Mode Multiple Read Mode
No. of Redundant Decodes Read twice before transmitting
UPC-A (13 digits) Add leading zero

Enable check digit
UPC-E (7 digits) Add leading zero

No check digit
Code 39 Do not calculate check digit/Transmit check digit

Enable start/stop characters (*.....*)

Disable character length of one
Codabar Enable start/stop characters as abcd/abcd

Do not calculate check digit/Transmit check digit

Disable character length of one
2 of 5 Do not calculate check digit

Disable characters length of two
Fixed length of bar code only Disabled
Buzzer Enabled
Positive bar codes only Disabled (Both positive and negative barcodes)
Error indications Do not transmit error code
Print quality adjustment Output from Low or High analog gain

1 MHz sampling rate

) throughout the bar codes menus.

%

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Manual No. 25-ULPNR101-03; Feb, 2003 LPN5627 / LPR5627 Laser Fixed Mount
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Section 5
Application Engineering Support

Technical Assistance and Support

Opticon is eager to help you integrate the LPN5627 / LPR5627 scanner into your application. Our
technical support staff is available to answer any questions or work with you to adapt the scanner to your
specific situation. We are happy to answer your questions, assist in configuring and positioning the
scanner for optimum operation, and help resolve any problems you encounter. Call us at 1 (800) 636-

0090.

Common Causes of Poor Performance

The most common reasons for poor scanning performance are listed below:

Bar codes are not positioned at the focal distance of the scanner.

♦

Specular reflection is impacting the scanner. Change the angle/position of the scanner or the bar

♦

code.
Poor quality of printed bar codes. Bar codes are out of specification.

♦

The paper on which the bar code is printed is highly reflective or has a glossy finish causing light to

♦

be reflected into the scanner.
The distance from the scanner to the bar code is not suitable for the density of the bar code. Or the

♦

density of the bar code beyond the scanners capability. If the red illuminating light of the scanner is
not on, the scanner may be in the “Trigger Enable” mode expecting a trigger signal.

Modified and/or Customized Scanners

Opticon will work with you to modify or customize scanners to match your requirements. Scanners can
be modified in terms of connectors type, pin-outs, cable length, default settings, custom software and
many other areas.

Opticon will modify scanners in our factory and ship you scanners that match your specific requirements.
By incorporating your modifications directly into production scanners, you receive scanners tailored for
your need. They can be used immediately without the need for further modification or rework.

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Section 6 Scanner Labeling

CDRH Class II Laser Device

LPN5627 / LPR5627 scanners comply with Center for Devices and Radiological Health (CDRH) regulations
21, CFR Subchapter J. It is classified as a Class II Laser Device

The LPN5627 / LPR5627 scanners use a low-power visible laser. As with any very bright light source,
such as the sun, you should avoid staring into the light beam. Momentary exposure to a CDRH Class II
laser is not known to be harmful.

A laser safety label, manufacturers label and product label are affixed to the scanner as shown

If the LPN5627 or LPR5627 scanner is incorporated into or interfaced to other equipment, that equipment
should include a laser safety label and a visible indicator that is illuminated whenever laser energy is
being emitted from the scanner. This indicator may remain illuminated when the scanner is powered but
the laser is not emitting energy

Section 7 Scanner Servicing and Maintenance

CAUTION: Use of controls or adjustments or performance of procedures other than those

specified herein may result in hazardous laser light exposure.

The LPN5627 / LPR5627 scanners contain no user adjustable or serviceable parts in the interior of the
scanner. All product service must be performed by the Opticon Service Department in Orangeburg, NY.
Opening the scanner will void the warranty and could expose the operator to laser light.

The LPN5627 / LPR5627 are warranted for 1 year including parts and workmanship. If you need
warranty or out-of-warranty repair, first call 1-800-636-0090 to obtain a Returned Material
Authorization (RMA) number. You will be provided a number and shipping instructions.

There is no scheduled maintenance required for the LPN5627 / LPR5627. The scanner can be cleaned
using a water dampened, lint free or lens cloth. Be careful to avoid excessive moisture that would
penetrate the housing or obscure the window. While use of cleaning fluids other than water are not
recommended, a neutral detergent or ethanol would be preferred if necessary. Do not use bleach at full
or diluted strength as damage to the painted case and/or window may result.

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Appendencies

Appendix A How to Program the Scanner

Appendix B Computer Programming Commands

Appendix C Bar Code Programming Commands

Appendix D Dimensional Drawing

Appendix E Optical Performance

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Appendix A

Programming the Scanner

Two different methods can be used to program parameters to configure the scanner:

a. Programming via Computer Commands

b. Programming via special Bar Codes from a menu page

Most parameters can be programmed using either of these two methods. However, there are certain
parameters that are only programmable via the bar code menu.

a. Programming via Computer Commands

Parameters can be programmed by sending software commands or keyboard strokes from the host
computer to the scanner in the following format:

<ESC> Computer Command <CR>

Note:

Only upper case letters are recognized, e.g., “AB” not” ab”
Each command normally consists of two characters
Downloading of software commands cannot be “grouped” together. Each command
must be preceded by <ESC> and followed by a <CR>

Parameters programmed by downloaded commands can be stored permanently by transmitting a
“<ESC> Z2 <CR>” command. It is not necessary to send a “Z2” command after each parameter is
changed. One Z2 command will save all changes

Appendix B lists all of the Computer Commands. In Appendix C, Bar Code Programming Menus, the left­hand column in all menus contains the Computer Command associated with that bar code.

b. Programming via Bar Codes

Use the following steps to program parameters via the bar code menus:

1. Scan the “Start/End” bar code. This instructs the scanner to enter the Programming Mode.
While in this mode the scanner will beep intermittently.

2. Scan the bar code(s) associated with the desired parameter(s). The scanner will beep when the
bar code is read. Note: because of the close proximity of bar codes on the page, it iis important
to aim carefully to ensure that only the desired bar code is scanned.

3. Scan the “Start/End” bar code. This instructs the scanner to exit the Programming Mode.

All the parameters that were scanned are retained in memory and are stored permanently (even if the
scanners is power down) or until they are changed again.

When the scanner is in the Programming Mode, you can change more than one parameter at a time.
However, this may become confusing. Until you be come proficient at programming you may prefer to

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