NCR 7890 User Manual

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Page 1

NCR 7890 Presentation Scanner

User’s Guide

BD20-0901-A Release G November 1998

Page 2

The product described in this book is a licensed product of NCR Corporation.

Trademark Information It is the policy of NCR Corporation (NCR) to improve products as new technology,

components, software, and firmware become available. NCR, therefore, reserves the right to change specifications without prior notice.

All features, functions, and operations described herein may not be marketed by NCR in all parts of the world. In some instances, photographs are of equipment prototypes. Therefore, before using this document, consult with your NCR representative or NCR office for information that is applicable and current.

To maintain the quality of our publications, we need your comments on the accuracy, clarity, organization, and value of this book.

Address correspondence to: Retail Systems Group−Atlanta

NCR Corporation 2651 Satellite Blvd. Duluth, GA 30136

Page 3

About this Book

Further Information

Preface

This book is for t h e v a riou s people who un p ack, insta ll, program, operate, and troubleshoot the NCR 7890 Presentation Scanner. It contains step-by-step instructions for each of these functions.

Since the daily operation of the scanner is very simple, frequent references t o t h is book are not required while using t h e s ca n n er. However, this book is essential e ach time you perform the less frequently used functions such as in stalling an d p rogramming.

You can obtain additional information about the NCR 7890 Presentation Scanner by contacting your NCR representative. The following list identifies the available information products.

• NCR 7890 Presentation Scanner Repair Guide

(BD20-0902-A)

• NCR Scanner Programming Tags (BST0-2121-74)

• NCR Scanner/Scale Interface Programmer ’s Gu ide

(BD20-1074-A)

• NCR 7890-0100 Parts Identification Manual

(BUF0-177)

• NCR 7890-0200 Parts Identification Manual

(BUF0-644)

Note: The Programming Tags book (BST0-2121-74) is included with t h is documen t and with the R e pair Guide (BD20-0902-A).

User’s Guide i

Page 4

Preface

Information Products are available through several different channels. F or fa x , e-mail, or ma il order, an NCR Information Products order form is available to NCR person ne l throug h Quick Look

Web Site

• http://inforetail.AtlantaGA.NCR.COM (NCR only)

• http://www.info.NCR.COM (Anyone)

Online Order

• Connect System (NCR only)

Phone Order

• 800-543-2010 (US area)

• 622-3727 (VOICEplus)

• 44-181-242-5350 (International)

Fax Order

• 937-445-6245 (US area)

• 44-181-242-5355 (International)

E-Mail

• Information+Products.Publishing@DaytonOH.NCR.

COM (US area)

• Management.Order@UnitedKingdom.NCR.COM

(International)

MS-Mail

• Publishing, Information+Products (US Area)

SMTP

• Order, Management UnitedK (International)

Mail Order

• NCR Corporation IPP-Dayton1700 S. Patters on

BoulevardDayton, OH 45479 USA

• NCR Corporation915 High RoadNorth

FinchleyLondon N12 OHN United Kingdom

ii User’s Guide

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Contents

Chapter 1

Introducing the 7890 Scanner

The NCR 7890 Presentation Scanner .......................... 1-1

Using Your Scanner ................................................ 1-3

Laser Scanning ....................................................... 1-4

Chapter 2

Site Requirements for Yo ur 7890 Scanner

Understanding Your 7890 Scanner

Requirements ................................................................ 2-1

Physical Considerations ........................................ 2-1

Environmental Considerations ............................. 2-3

Power Considerations ............................................ 2-4

Scanner Location .................................................... 2-4

Chapter 3

Installing Your 7890 Scanner

Installing Your 7890 Scanner ....................................... 3-1

Overview ................................................................. 3-1

Preparing for Installation ...................................... 3-1

Insta llin g t h e Sca n n e r ............................................ 3-2

Preparing for Installation ............................................. 3-3

What is in the Box .................................................. 3-3

Reporting a Damaged Scanner ............................. 3-3

ESC/POS Read Me First iii

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Contents

Interpreting the 7890 Product Number ................ 3-4

Identifying Scanner Module Cables ...................... 3-4

Identifying Interface Cables .................................. 3-5

Determining Scanner Location .............................. 3-6

Identifying Available Kits ...................................... 3-7

Determining the Communication

Protocol .................................................................... 3-9

Insta llin g t h e Sca n n e r ................................................. 3-11

Connecting the Scanner Module Cable .............. 3-12

Connecting the Power Module ........................... 3-12

Modifying the Scanner Program ......................... 3-13

Connecting the Interface Cable ........................... 3-13

Chapter 4

Operating Your 7890 Scanner

The 7890 Scanner Components ................................... 4-1

Presentation Scanning .................................................. 4-2

Pick-Up Scanning ......................................................... 4-5

Label Orientation .......................................................... 4-6

Scan Pattern Location ............................................. 4-6

Label Rotation ......................................................... 4-7

Distance from Scanner ........................................... 4-8

Read Indicators ............................................................. 4-9

Status Indicator ....................................................... 4-9

Audible Indicator ................................................... 4-9

Indicator Functions .............................................. 4-10

Bar Code Quality ........................................................ 4-11

Taking Care of Your Scanner ...................................... 4-13

Scanner Operation Summary .................................... 4-14

1 Scan the Bar Code Label .................................... 4-14

2 Observe the Read Indication ............................ 4-14

iv ESC/POS Read Me First

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Contents

Chapter 5

Programming Your 7890 Scanner

Overview - Programming Your Scanner .................... 5-1

Preparing for Your Program ................................. 5-1

Completing the Worksheets .................................. 5-1

Entering Your Program .......................................... 5-2

Requirements .......................................................... 5-2

Helps ....................................................................... 5-2

Suggestion .............................................................. 5-2

Programming Considerations ..................................... 5-3

Programming Worksheets ..................................... 5-3

Programming Tags ................................................. 5-3

Programming Mode ............................................... 5-5

Entering Your Program ................................................ 5-6

Communications Protocol ........................................... 5-7

Protocol ................................................................... 5-7

Sample Program ..................................................... 5-8

Entering the Program ............................................ 5-8

Good Read Tone ......................................................... 5-10

Tone On/Off ......................................................... 5-10

Tone Frequency .................................................... 5-10

Tone Length ........................................................... 5-11

Parameter Shortcuts .............................................. 5-11

Sample Program ................................................... 5-12

Entering the Program .......................................... 5-12

Timers .......................................................................... 5-16

Lockout Time ........................................................ 5-16

Restart Lockout Timer ......................................... 5-16

Active Time ........................................................... 5-17

Multiplier .............................................................. 5-17

Parameter Shortcuts ............................................. 5-18

Sample Program ................................................... 5-18

Entering the Program .......................................... 5-19

Bar Codes - 1 ............................................................... 5-22

Code 128 ................................................................ 5-22

ESC/POS Read Me First v

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Contents

UPC/EAN ............................................................. 5-22

Parameter Shortcuts ............................................. 5-25

Sample Program ................................................... 5-25

Entering the Program ........................................... 5-26

Bar Codes - 2 ............................................................... 5-32

Code 39 .................................................................. 5-32

Parameter Shortcuts ............................................. 5-33

Sample Program ................................................... 5-34

Entering the Program ........................................... 5-35

Bar Codes - 3 ............................................................... 5-39

Interleaved 2 of 5 .................................................. 5-39

Parameter Shortcuts ............................................. 5-41

Sample Program ................................................... 5-41

Entering the Program ........................................... 5-42

Bar Codes - 4 ............................................................... 5-47

Code 128 ................................................................ 5-47

Minimum Data Characters Allowed ................... 5-47

UCC 128 ................................................................ 5-48

Parameter Shortcuts ............................................. 5-48

Sample Program ................................................... 5-49

Entering the Program ........................................... 5-50

Label Identifiers .......................................................... 5-52

Identifier Type ....................................................... 5-52

Common Byte 1 and Common Byte 2 ................ 5-55

Bar Code Type ....................................................... 5-55

Common Byte ....................................................... 5-56

Unique Identifier .................................................. 5-56

Version Number .................................................... 5-57

Parameter Shortcuts ............................................. 5-57

Sample Program ................................................... 5-58

Entering the Program ........................................... 5-59

Additional Bar Code Options .................................... 5-66

UPC Number System Character ......................... 5-66

Sample Program ................................................... 5-66

Entering the Program ........................................... 5-67

vi ESC/POS Read Me First

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Contents

RS-232 Parameters - 1 ................................................. 5-68

Baud Rate .............................................................. 5-68

Parity ..................................................................... 5-68

Stop Bits and Character Length .......................... 5-68

Handshake ............................................................ 5-69

Parameter Shortcuts ............................................. 5-70

Sample Program ................................................... 5-70

Entering the Program .......................................... 5-71

RS-232 Parameters - 2 ................................................. 5-74

BCC Option .......................................................... 5-74

Interface Control ................................................... 5-74

Check Digit ........................................................... 5-75

VLI and Bit 6 EOM ............................................... 5-75

Retransmit on ACK/NAK Timer

Expiration ............................................................. 5-76

Parameter Shortcuts ............................................. 5-76

Sample Program ................................................... 5-77

Entering the Program .......................................... 5-78

RS-232 Prefix Byte ...................................................... 5-81

Prefix Byte ............................................................. 5-81

ASCII Code ........................................................... 5-81

Parameter Shortcuts ............................................. 5-81

Sample Program ................................................... 5-82

Entering the Program .......................................... 5-82

RS-232 Term inator By te .............................................. 5-85

Terminator Byte .................................................... 5-85

ASCII Code ........................................................... 5-85

Parameter Shortcuts ............................................. 5-86

Sample Program ................................................... 5-86

Entering the Program .......................................... 5-86

Communications Options .......................................... 5-89

Send IBM Tags in Hex or ASCII .......................... 5-89

Maintain or Drop OCIA Tag Message

Data ....................................................................... 5-89

Retries on IBM Message ...................................... 5-90

ESC/POS Read Me First vii

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Contents

RS-232 Mode: Normal or Eavesdrop .................. 5-90

RS-232 Delay ......................................................... 5-91

OCIA NCR Short Soft Rest .................................. 5-91

Sample Program ................................................... 5-92

Entering the Program ........................................... 5-93

Clone Programming ................................................... 5-95

Scanner Programming Summary .............................. 5-97

Creating the program ........................................... 5-97

Entering the Program ........................................... 5-98

Saving the Program .............................................. 5-99

Cloning the Program ............................................ 5-99

Chapter 6

Troubleshoo ting Your 7890 Scanner

Fault Identification ....................................................... 6-1

Repairing Your 7890 Scanner ....................................... 6-4

Interface Switch ............................................................. 6-5

Switch Function ...................................................... 6-5

Changing the Interface Switch Setting ................. 6-6

Fuse ................................................................................ 6-7

Appendix A

Programming Worksheets

Overview - Programming Worksheets ...................... A-1

Purpose ................................................................... A-1

Format .................................................................... A-1

Defaults .................................................................. A-1

Shortcuts ................................................................. A-2

ASCII Characters ................................................... A-2

Program Entry ....................................................... A-2

viii ESC/POS Read Me First

Page 11

Radio Frequency Interference Statement

Federal Communications Commission (FCC)

Note:

Information to User:

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. Th es e 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 an d, if not installed and used in accordance with out the instruction manual, may caus e harmful inte rference to radio communications. Op eration of th is eq u ipm en t in a residential area is likely to ca u se harmfu l in t e rferen ce in which case the user is required to correct the interference at his own expense.

This equipment must be installed and used in strict

accordance with the manufa ct u rer’s instru ctio n s. However, there is no guarantee that interference to radio communica tion s will not occur in a p a rticu la r commercial insta lla tion . If this eq u ipment does cause interference, wh ich ca n be de t ermined by tu rn ing the equipment off and on, the user is encourag ed to consu lt an NCR Corporation service representative immediately.

User’s Guide ix

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Radio Frequency Interference Statement

Caution:

NCR Corporation is n ot respon s ible for any radio or television interference caused by unauthorized modifications of this equipment or the substitution or attachment of connecting cables and equipment other than those specified by NCR. Such unauthorized modifications, substitutions, or attachments may void

the user’s authority to operate the equipment. The correction of interferences caused by su ch u nau th orized modifications, substitutions, or attachments are the responsibility of th e u s e r.

Voluntary C o ntrol C o uncil fo r Interference (VCCI) Radio Frequency Interference Statement

x User’s Guide

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Canadian Department of Communications Radio Frequency Interference Statement

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communication.

Le présent appareil numérique n’émet pas de bruits radioélectrique s d épassan t le s limites ap plicables aux appareils numériques de la Class A prescrites dans le Règleme n t sur le brouillage rad ioéle ctriq u e s édicté par Ministère des Communications du Canada.

Safety Extra Low Voltage

This device should only be powered by a Safety Extra Low Volta g e (SELV) power supp ly source with an available current level of 5 amperes or less, suitable for the country of installation. The power source must be certified by the appropriate safety agency for the country of installation.

Le matériel doit être reliés electriquement au circuit å Très Bas s e Tension de Sécurité (TBTS) ayant une limite de 5 ampères correspondant de facon satisfaisante et acceptable dan s le pays où le m a t érie l doit ê tre installé. Le source d’alimentation doit être approuvée par une agence de normalisation appropriée et acceptable dans le pays où le matériel doit être installé.

User’s Guide xi

Page 14

Declaration of Conformity

Declaration of C onformity

Manufacturer’s Name

Manufacturer’s Address

Type of Equipment

Model Number

Electrical Rating (Input)

NCR Corporation

NCR Corporation Retail Systems Group - Atlanta 2651 Satellite Boulevard Duluth, GA 30136

Information Technology Equipment — Presentation Scanner

Class 7890

9 Vdc, 1.0 A

NCR Corporation, 1700 South Patterson Bou levard, Dayton, OH 45459, USA, declares that the equipment specified above conforms to the referenced EU Directives and Harmonized Standards.

EU Directive Harmonized Standard(s) File, Certificate,

89/336/EEC (EMC) EN 55022: 1987 (CISPR 22)

EN 50082-1, Part 1: 1992 IEC 801-2: 1984 IEC 801-3: 1984 IEC 801-4: 1988

or Test Report Number

00334

xii User’s Guide

Director of Qua lity A ssur ance

NCR Corporation Retail Sys te m s G roup - Atlanta 2651 Satellite Boulevard Duluth, GA 30136

Page 15

European Contact:

NCR Limited 206 Marylebone Road London, NW1 6LY, Eng land

User’s Guide xiii

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Declaration of Conformity

xiv User’s Guide

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Laser Safety Label

Figure 1 7890 Product Label (Laser Safety)

Laser Safety

The NCR 7890 Presentation Scanner comes from the factory with the Laser Safety label attached. The following figure s h ows t h e La s e r Sa fet y la bel a n d its location.

Complies with FDA radiation

Corporation

NCR

Atlanta, G A  30136

perform ance standards, 21 CF R S ubchapter J Made in USA

D ate M anufactured

C lass 7890

Model

9A 1

Covered by one or m ore of the follow ing patents or patents pending: 4935610, 4971410, 5105070, 51 32523, 5148009, 5155346, 5164584, 5179271, 5185514, 5195514, 5198650, 5206776, 52 21832, 5256865

Class IIa Laser Product. Avoid Long-Term V iew ing of direct Laser Light.

Serial Tracer

W 9

Funkenstört nash VF G 243/91

Ap pareil á laser de classe IIa. Éviter toute exposition prolongée de la vue à la lum ière laser directe.

EN -60825-1 CLA SS 1 LA SE R P RO DUCT

"This device complies with part 15 of the FC C Rules Operation is subject to the following two conditions (1) T his device may not cause harmful intreference and (2) this device m ust accept any interference received includin g interference that ma y cause undersired operation"

This apparatus does not exceed the C la s s A lim it s fo r ra d io n o is e emm isio ns set out in the Radio interference R egulation of Canada

Le presént appareil ñ em et pas de bruits radioélectrictriques dépassant le s lim ite s d e la c la s s é A p re s c r ite s dans le Reglement sur le bro uilage radioélectricque du Canada.

Clase IIa Produto Laser.Traté de no ver directam ente él Rayo Laser por muchó tiem po.

12188

Repair Guide xv

Page 18

Laser Safety

Country Language Specific ICE Class 1 Laser Labels

Figure 2 Country Language Specific IE C Class 1 Laser Labels

There are seven Country Language Specific IEC Class 1 Laser labels included with the NCR 7890 Scanner when configured for international installations. The importer/installer must attach the correct IEC label to the scanner cabinet. The following figure shows the labels and suggested installation location.

CLASS 1 LASER

PRODUCT

APPAREIL A LASER

DE CLASSE 1

PRODUCTO LASER

CLASE 1

LUOKAN 1

LASERELAITE

KLASS 1

LASER APPARAT

LASER KLASSE 1

Zeitbasis 100 s

12187

xvi Repair Guide

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7890 0100 Laser Module Label Location

CAUTION: Laser radiation when open and interlock defeated. DO NOT STARE INTO BEAM.

This laser module does not comply with 21CFR1040. USE ONLY AS A Component.

7890 0200 Laser Module Label Location

CAUTION: Laser radiation when open and interlock defeated. DO NO T STARE INTO BEAM.

This laser module does not comply with 21CFR1040. USE ONLY AS A Component.

CAUTION: Laser

radiation when

open and interlock

defeated.

DO NOT STARE

INTO BEAM.

This laser module

does not comply

with 21CFR1040.

USE ONLY AS A

Component.

12189

CAUTION: Laser

radiation when

open and interlock

defeated.

DO NOT STARE

INTO BE AM.

This laser module

does not comply

with 21CFR1040.

USE ONLY AS A

Component.

15710

Repair Guide xvii

Page 20

Laser Safety

Laser Power

The NCR 7890 Presentation Scanner meets the following laser/LED power requirements.

• Class IIa CDRH (Center for Devices and

Radiological Health)

“Class IIa Laser Product—Avoid Long-Term

Viewing of Direct Laser Light.”

• Class 1 EN60-825 (Europäische Norm)

Following is t h e ra dia n t en e rgy of t h e la ser/LED lig h t as applied to each of the specified requirements.

7890-0100

Accessible Emission Limit (CDRH Calculation) 0.66 Milliwatts Accessible Emission Limit EN60 8251:1994+AII:1996

0.63 Milliwatts

7890-0200

Accessible Emission Limit (CDRH Calculation) 0.99 Milliwatts Accessible Emission Limit EN60 8251:1994+AII:1996

7890-8082

Accessible Emission Limit (CDRH Calculation) 0.99 Milliwatts

Caution: Use of controls or adjustments or performance of procedures other tha n s pecified herein may resu lt in hazardous radiation exposure.

Class IIa Laser Product--Avoid Long-Term Viewing of Direct Laser Light.

xviii Repair Guide

0.81 Milliwatts

Page 21

Revision Record

Chapter 1 - Introducing t h e 7890 S cann er

Page No. Date Remarks

1-1 - 1-6 07/92 First printing. 1-1 - 1-6 01/96 Changed product name. 1-1 - 1-4 03/97 Incorporated 7890 0200

Scanner Information.

Chapter 2 - Site Requirements for Your 7890 Scanner

Page No. Date Remarks

2-1 - 2-4 07/92 First printing. 2-3 03/93 Acoustical Noise was

lowered.

User’s Guide xix

Page 22

Revision Record

Chapter 3 - Installing Your 7890 Scanner

Page No. Date Remarks

3-1 - 3-8 07/92 First printing. 3-1 - 3-12 03/93

3-1 - 3-14 03/94

3-3, 3-13

01/96 Changed product name

3-4, 3-5

3-8 3-1 - 3-14 03/97

Added an Overview. Added new cables. Added new kits. Added section on

determining the communication protocol.

Added new cables Added new kits Changed Communications

Protocol table

Updated cable charts.

Updated kit chart. Incorporated 7890 0200

Scanner Information. Updated Cable and kit

charts.

xx User’s Guide

Page 23

Chapter 4 - Operating Yo ur 7890 Scanner

Page No. Date Remarks

4-1 - 4-16 07/92 First printing. 4-1 - 4-16 03/93 Revised description of

presenta t io n s canning. Revised description of read

indicators.

Revised the Summary. 4-1 - 4-18 03/94 Added information to 4-14 4-3, 4-4 01/96 Updated illustrations. 4-1 - 4-16 03/97 Incorporated 7890 0200

Scanner Information.

Chapter 5 - Programming Your 7890 Scanner

Page No. Date Remarks

5-1 - 5-74 07/92 First printing. 5-1 - 5-91 03/93 Complete revision of this

chapter. 5-7,40,56,

67-69,73, 74,76,84,85

03/94 Changes to these pages

5-88 - 91

Added Communications

Options section on pages

88-91 5-2, 5-3

01/96 Changed order number of

Programming Tags book.

5-66, 5-67

Added Additional Bar

Code Options

programming parameters

description.

User’s Guide xxi

Page 24

Revision Record

Page No. Date Remarks

5-91

5-92

5-1 - 5-100

5-33

5-91

5-95

Added RS-232 Delay parameter description.

Added Sample Program. for Communications Options parameter description.

03/97 Incorporated 7890 0200

Scanner Information.

Added Allow Single Character Tags parameter description.

Added OCIA NCR Short Soft Reset parameter description.

Updated Clone Programming description.

xxii User’s Guide

Page 25

Chapter 6 - Troubleshooting Your 7890 Scanner

Page No. Date Remarks

6-1 - 6-6 07/92 First printing. 6-1 - 6-7 03/93 Enhanced troubleshooting

chart.

Changed Factory Repair to

Repairing Your 7890 Scanner

and revised section.

Revised description of

Interface Switch. 6-3 03/94 Change to this page

Appendix A - Programming Worksheets

Page No. Date Rem ar ks

A-1 - A-14 07/92 First printing. A-1 - A-17 03/93

Revised Overview. Added Defaults chart. Revised Timeouts. Revised Bar Codes - 1. Revised Bar Codes - 3. Added Bar Codes - 4. Revised RS-232 Parameters -

A-1 - A-18 03/94

Changed Bar Codes - 1 value on page A-3

Changed page A-5 Changed Character 2 default

on page A-10 Added Communications

Options section on page A-17

User’s Guide xxiii

Page 26

Revision Record

Page No. Date Rem ar ks

A-14

01/96 Added Additional Bar Code

Options programming worksheet.

A-19

Added RS-232 Delay parameter.

A-1 - A-20

03/97

Incorporated 7890 0200 Scanner Information.

A-9

Updated Bar Codes - 1 Worksheet

A-10

A-19

Updated Bar Codes - 2 Worksheet

Updated Communications Options Worksheet

Index

Page No. Date Remarks

I-1 - I-7 07/92 First printing. I-1 - I-9 03/93 Revised to reflect all

changes made to this book.

I-1 - I-9 03/94 Revised to reflect this

revision.

I-1 - I-10 01/96 Revised to reflect this

revision.

I-1 - I-8 03/97 Revised to reflect this

revision.

xxiv User’s Guide

Page 27

User’s Guide xxv

Page 28

Contents

Chapter 1

Introducing the 7890 Scanner

The NCR 7890 Presentation Scanner .......................... 1-1

Using Your Scanner ................................................ 1-3

Laser Scanning ....................................................... 1-4

Book Title i

Page 29

Contents

ii Book Title

Page 30

Operating Your 7890 Scanner

The NCR 7890 Presentation Scanner

The NCR 7890 Pre s entation Scanner

Your new scanner represents the latest technology in laser scanning. Being a presentation scanner, you present the label to the scanner. This eliminates the need of moving the label past the scan window, reducing the amount of operator activity.

The 7890 Presentation Scanner is a small, compact unit that weighs less than two pounds. Figure 1-1 shows the scanner, connecting cables, and power module.

User’s Guide 1-1

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Operating Your 7890 Scanner

The NCR 7890 Presentation Scanner

Figure 1-1 NCR 7890 Presentation Scanner

7890 Scanner

Scanner M odule C able

In te rfa c e C a b le

Pow er M odule

R0 002

1-2 User’s Guide

Page 32

Using Your Scanner

Operating Your 7890 Scanner

The NCR 7890 Presentation Scanner

Because your NCR 7890 scanner is a hands-free presentation type scanner, it is much easier to use in the retail environment. The scanner sits on the counter a n d you present the bar code label to the scanner. By using an optional Holder, you can hang the scanner on a wall, or define a space on the counter top, depending on the construction of your checkout area.

Although the 7890 is a presentation scanner, there may be times when the merchandise is too large to be presented to the scanner. In these cases, you ca n pick up the scanner and move it to the merchandise. Because the scanner is very light, you can maneuver it easily in these circumstances.

The design of your scann er permits it to sit on a counter top in either a horizontal or vertical position. However, you may want to use a Holder to prevent the scanner from moving. The optional Holder kit contains three different Holders: horizontal mount, vertical mount, and hanging mount. You fasten the Holders that you want to use to the counter top or an adjacent wall. The Holders keep the scanner in a position that is comfortable to use.

Your 7890 Presentation Scanner does not have an On/Off switch. To minimize the amount of time the laser is on, and to reduce wear in the u nit, the scanner contains circuitry that turns it off when no t in use. If you present a label to the scanner when it is off, it detects the obj e ct and turns on. This occurs with no noticeable delay in re ading the label. After several seconds of not det ecting a v alid bar code , the scanner shuts off.

User’s Guide 1-3

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Operating Your 7890 Scanner

The NCR 7890 Presentation Scanner

Laser Sca nni ng

Although the 7890 Presentation Scanner is very simple to use, it is quit e a complex electronic device. It contains a laser m odule that generate s a low-level laser light. The laser light passes through a se rie s o f mirrors to ge n erate a scan pattern . A deflector mirror directs the light out the scan window. Reflected light from the b ar code is collecte d and decoded to determine the bar code data. The scanne r then sends the information to the host terminal or personal computer (PC).

The 7890 Presentation Scanner produces an omnidirection al scan pattern that makes scannin g easier. T he pattern looks like several lines are scanning simultaneously, but is actually just a single beam re flected through several mirrors. It is th is pattern that enables the scanner to read bar codes from most orientations.

After reading the information contained in the bar code, the 7890 sends the information to the host terminal or personal computer (PC). In terfaces available for transmitting information are OCIA NCR Long, OCI A NCR Short, OCIA Non-NCR, RS-232, and IBM 468x/469x. The 7890 Presentation Scanner contains all the necessary electronics and firmware for each of these interfaces. When ins t a llin g t h e scanner yo u can change the interface selection if needed. Refer to Chapter 5,

Programming Your 7890 Scanner and Chapter 6, Troubleshooting Your 7890 Scanner.

1-4 User’s Guide

Page 34

Contents

Chapter 2

Site Requirements for Yo ur 7890 Scanner

Understanding Your 7890 Scanner

Requirements ................................................................ 2-1

Physical Considerations ....................................... 2-1

Environmental Considerations ............................ 2-3

Power Considerations ............................................ 2-4

Scanner Location .................................................... 2-4

User’s Guide i

Page 35

Contents

ii User’s Guide

Page 36

Physical Considerations

Site Requirements f or Your 7890 Scanner

Understanding Your 7890 Scanner Requirements

Your 7890 Presentation Scanner is designed to operate within a wide environm ental range. Being a s mall periphera l u n it , it do es not require any special wiring or mounting . Normally, its requ iremen t s a re within t h os e of the host terminal or PC.

The 7890 Presentation Scanner is a small, light-weight unit. Weighing less than two pounds, it is remarkably easy to pick up when necessary. When sitting on the counter top it can be placed in either a horizontal or vertical position. Each of these positions require minimal counter space. Figure 2-1 shows the scanner dimensions when sitting on a counter top.

Horizontal Vertical

User’s Guide 2-1

6.1 in. x 6.1 in. (15.6 cm x 15. 6 c m)

3.6 in. x 5.4 in. (9.1 cm x 13. 7 c m)

Page 37

Site Requirements f or Your 7890 Scanner

Understanding Your 7890 Scanner Requirements

Figure 2-1 7890 Physical Dimensi ons

H orizontal P osition

6.1 in.

( 1 5 .6 c m )

4.2 in.

( 1 0 .8 c m )

6.1 in.

( 1 5 .6 c m )

Vertical Position

3.6 in.

( 9.1 cm )

2-2 User’s Guide

6.1 in.

( 1 5 .6 c m )

5.4 in.

( 1 3 .7 c m )

R 0005

Page 38

Environmental Considerations

Site Requirements f or Your 7890 Scanner

Understanding Your 7890 Scanner Requirements

Your 7890 Presentation Scanner operates in all standard working environments. Temperature and humidity ranges permitted are greater when the 7890 is in storage or transit. The following table gives the various environmental requirements.

Working Range Storage Range

Temperature

Temperature Change

Humidity

Humidity Change

50°F to 104°F 10°C to 40°C 18°F per hour 10°C per hour

20% to 80% RH Non-Condensing

10% per hour

-40°F to 140°F

-40°C to 60°C 36°F per hour 20°C per hour 5% to 95% RH

Non-Condensing

Barometric Pressure

Ambient Light

Acoustical Noise

Vibration and Shock

105 x 103 Pa to 69 x 103 Pa 300 Foot-candles

on tag, s canner not pointed at light source

50 dBa or less measured at 12 in. (30.48 cm) from any surface

Can withstand multiple 36-in. (91.44cm) drops onto a tiled concrete floor

Not Applicable

User’s Guide 2-3

Page 39

Site Requirements f or Your 7890 Scanner

Understanding Your 7890 Scanner Requirements

Your 7890 Presentation Scanner operates on only 9

Power Considerations

Vdc. It receives current through the Scanner Module Cable, from a power module that plugs into an electrical outlet. One of four power modules comes with your scanner, depending on the requirements you specify. It is critical that you have the proper power module for your elect rical circuit. Th e following power modules are available.

• 104 Vac to 127 Vac, 60 Hz, USA/Canada

• 220 Vac to 240 Vac, 50 Hz, European

• 220 Vac to 240 Vac, 50 Hz, Au s tralia

• 90 Vac to 104 Vac, 50/60 Hz, Japan

When identifying a location for your 7890 Scanner,

Scanner Location

consider t h e le n gth of the co n n e ct in g ca ble s . The electrical outlet used for the Power Module can be approximately 74 in. (188 cm) from the host terminal. Depending on the Scanner Module Cable, the scanner can be approximately 6.6 ft (2 M) or 13.1 ft (4 M) from the host terminal or PC. These distances are normally shorter depending on how you route the connecting cables. Be sure that the Scanner Module Cable is long enough to permit the scanner to be picked up when required for large packages .

2-4 User’s Guide

Like any electronic device, your 7890 Presentation Scanner sh ou ld n ot be loca t ed in direct s u nlight. Temp eratu res above 104 degrees Fahrenheit (40 degrees Celsius ) ca n occu r wh e n sunlight falls on objects through windows or on an ou tdoor checkstand.

Page 40

Contents

Chapter 3

Installing Your 7890 Scanner

Installing Your 7890 Scanner ....................................... 3-1

Overview ................................................................. 3-1

Preparing for Installation ...................................... 3-1

Insta llin g t h e Sca n n e r ............................................ 3-2

Preparing for Installation ............................................. 3-3

What is in the Box .................................................. 3-3

Reporting a Damaged Scanner ............................ 3-3

Interpreting the 7890 Product Number ............... 3-4

Identifying Scanner Module Cables .................... 3-4

Identifying Interface Cables ................................. 3-5

Determining Scanner Location ............................. 3-6

Identifying Available Kits ..................................... 3-7

Determining the Communication

Protocol ................................................................... 3-9

Insta llin g t h e Sca n n e r .................................................. 3-11

Connecting the Scanner Module Cable ............ 3-12

Connecting the Power Module .......................... 3-12

Modifying the Scanner Program ........................ 3-13

Connecting the Interface Cable .......................... 3-13

User’s Guide i

Page 41

Contents

ii User’s Guide

Page 42

Overview

Preparing for Installation

Installing Your 7890 Scanner

This overview of the Installing Your 7890 Scanner is intended to help you understand the steps necessary to install the scanner. It identifies each of the things you must consider to have a successful installation.

There are several things you should do when preparing for the installation. These are listed as follows.

1 Open the box and verify that you have received

all the necessary components.

2 Inspect the scanner for damage. 3 Verify the communication protocol required by

your host terminal or PC. The 7890 comes from the factory programmed for OCI A NCR Short.

4 Verify that you have the correct Interface Cable

for your host terminal or PC.

5 Determine where you want to locate your 7890

Scanner.

6 If you are installing a Holde r, verify tha t you

have the correct kit.

User’s Guide 3-1

Page 43

Installing Your 7890 Scanner

Installing the Scanner

Installing the 7890 Scan n er in volves con n ectin g all th e cables, m aking any program chang e s , and ins ta llin g a Holder if one is bein g used. P erform this proces s a s follows.

7 Install the Scanner Module Cable.

8 Install the Power Module.

9 Make any necessary changes to the program.

10 Install th e Holde r if on e is be in g used.

11 Ins tall the In terface Cable to your host term inal or

PC.

3-2 User’s Guide

Page 44

What is in the Box

Installing Your 7890 Scanner

Preparing for Installation

Before installing your NCR 7890 Presentation Scan ner, there are some tasks that you need to perform. There is also some information that is useful as you get ready to install th e scanner.

After you have unpacked the 7890 Scanner according to the instructions printed on the box, take inventory to assure that you have received all components. The following list ide n t ifies the pack a g e con te n t s .

• 7890 Presentation Scanner

• Power Module

• Scanner Module Cable

• Interface Cable

Reporting a Damaged Scanner

• Documentation The optional Holders do not come in the same box with

the scanner, but are shipped separately.

If your scanner has been damaged due to shipping, notify the shipping carrier and your NCR representative. If you find other damage, notify NCR, or other sup p lie r if n ot purchased directly from NCR .

User’s Guide 3-3

Page 45

Installing Your 7890 Scanner

Preparing for Installation

Interpreting the 7890 Product Number

Currently, there are two models of the 7890 Presentation Scanner that can be configured with one of four different Power Modules. Figure 3-1 shows the interpretation of the 7890 Product Number.

Figure 3-1 Product Number

Identifying Scanner Module Cables

90X X

C lass: 7890

M ajor M odel: 01 (O nly O ne A vailable)

Sub M odel: 00 (None)

Power:

00 = 104-127 Vac, 60 H z, U S /C anada 25 = 220-240 Vac, 50 H z, European 26 = 220-240 Vac, 50 H z, Australia 62 = 90-104 Vac, 50/60 H z, Japan

Language: 90 (N o Characteristics)

7890 0100--

There are three available Scanner Module Cables. The following chart gives the Corporate ID Num ber for each.

Scanner Module Cable

Cable Descripti o n

2-Meter, Straight 1416-C047-0020 4-Meter, Straight 1416-C034-0040 3-Meter, Coiled 1416-C124-0030 Checkpoint EAS 1416-C242-0020 Checkpoint EAS with

Interlock

Corporate ID Nu mber

1416-C353-0030

R 0007

3-4 User’s Guide

Page 46

Identifying Interface Cables

Installing Your 7890 Scanner

Preparing for Installation

The following table ide n tifie s the interface cable required for the different host connections that can be made with 7890 Presentation Scanner

Interface Cable

Host Connection Interface

2122 OCIA 1416-C046-0004 2123 OCIA 1417-C024-0004 2126 OCIA 1417-C022-0004 2127 OCIA 1417-C023-0004 2151/2152 OCIA 1417-C026-0004 2155/2157 OCIA 1417-C025-0004 2552/2557 OCIA 1417-C019-0004 7050/7051 OCIA 1417-C025-0004 7052/7053/7054/7450 OCIA 1417-C020-0014 7058 OCIA 1417-C024-0004 Beetle RS-232 1416-C271-0004 Dynakey Wedge 1416-C309-0012 Fujitsu Atrium 28-Pin RS-232 1416-C201-0005 Gilbarco 9-Pin RS-232 1416-C256-0004 Verifone RS-232 1416-C272-0004 Wayne Controller RS-232 1416-C257-0004 IBM 468x Port 5B IBM 468x 1416-C024-0004 IBM 468x Port 9B IBM 468x 1416-C023-0004 IBM 468x Port 9B (Remote Power) IBM 468x Port 17 IBM 468x 1417-C021-0004 Non NCR OCIA OCIA 1416-C050-0004 RS-232 2170 RS-232 1416-C039-0004 RS-232 Wedge RS-232 1416-C038-0004

IBM 468x 1416-C354-0004

Corporate ID No .

User’s Guide 3-5

Page 47

Installing Your 7890 Scanner

Note:

Preparing for Installation

Determining Scanner Location

Interface Cable

Host Connection Interface

RS-232 9-Pin RS-232 1416-C037-0004 RS-232 25-Pin RS-232 1416-C247-0004 RS-232 Eavesdrop RS-232 1416-C122-0004 RS-232 Omni-Link RS-232 1416-C200-0004

Corporate ID No .

You can also interface your 7890 Scanner to other host terminals not shown in the previous list. You norm ally do this by using R S -2 32 communications through a keyboard wedge. Your application m a y a ls o requ ire a s oft wa re wedg e .

When identifying where to locate your 7890 Presentation Scanner, be sure to consider the length of the connecting cables. The straight cables are either 6.6 ft (2 M) or 13.1 ft (4 M) long. The coil cable is 6.6 ft (2 M). You must also consider how to route the cables to the host terminal or PC and how to route the power cable to an electrical outlet. Within the constraints of the cable lengths, locate the scanner in a position that is comfortable for presenting the merchandise (labels). Also consider a position that gives extra cable for picking u p the scan n e r wh en requ ired for large packages. Figure 3-2 shows the cable lengths.

3-6 User’s Guide

Do not locate scanner in direct sunlight. The temperature may rise above the specified range causing poor op eration or p ossible damage.

Page 48

Figure 3-2 Scanner Cables

Identifying Available Kits

Installing Your 7890 Scanner

Preparing for Installation

H ost Term inal

In te rfa c e C a b le

Scanner M odule C able

Pow er M odule

7890 Scanner

6.6 ft (2 m )

13.1 ft (4 m )

1 5 .5 in .

(39.4 cm )

74 in.

(188 cm )

R0 006

Although it is not necessary, a Holder is very useful for keeping the scanner from sliding around on the counter top as you scan labels. There are four available Holder Kits: Cup Holder, Dish Holder, Hook Holder, and Combination (all three holders). Each of these holders are designed to hold the scanner in a different position.

Through normal scanner use, the scan window can become scratched. The Window Assembly is made available in case you scratch the scan window sufficiently to reduce the scanner’s effectiveness.

User’s Guide 3-7

Page 49

Installing Your 7890 Scanner

Preparing for Installation

A Power Module for the electrical requirements you specified comes with the 7890 Scanner. However, replacement Power Modules are available.

The following table identifies the kit number for each available kit.

Kit Descripti o n Kit Number

Laser Fog Kit, Model 02 7890-K750-V001 Cup Holder 7890-K350-V001 Holder Cup with Stand 7890-K600-V001 Dish Holder 7890-K400-V001 Hook Holder 7890-K500-V001 Combination Holders (Cup, Dish, and

Hook) Checkpoint Assembly 7890-K800-V001 Checkpoint Assembly, Model 02 7890-K802-V001 Window Assembly 7890-K200-V001 Checkpoint Window with Antenna 7890-K201-V001 Window Assembly, Model 02 7890-K205-V001 Diamonex Window Assembly, Model 02 Power Module, 104-127 Vac, 60 Hz,

USA/Canada Power Module, 220-240 Vac, 50 Hz,

European Power Module, 220-240 Vac, 50 Hz,

Australia Power Module, 90-104 Vac, 50/60 Hz,

Japan Power Module, 240 Vac, 50 Hz, U nited

Kingdom

7890-K300-V001

7890-K206-V001

7890-K020-V001

7890-K030-V001

7890-K040-V001

7890-K010-V001

7890-K050-V001

3-8 User’s Guide

Page 50

Determining the Communication Protocol

Installing Your 7890 Scanner

Preparing for Installation

Kit Descripti o n Kit Number

Power Module, 104-127 Vac, 60 Hz, USA/Canada Piggyback

Auxiliary Power C able (7450 0xxx and 1xxx)

Auxiliary Power C able (7450 24xx)

Auxiliary Power C able (7452 only)

Two-Three Tag Firmware 7890-K511-V001 2123 Cable with Opto Isolator 7890-K617-V001

7890-K060-V001

7890-K070-V001

7890-K071-V001

7890-K072-V001

Before connecting your 7890 Scanner to a host terminal or PC, you m u s t verify th e com m un ication p rotocol being used. The 7890 comes from the factory programmed for OCIA NCR Short; however, the communications p rotocol is easily changed without taking the unit apart. Refer to Ch ap ter 5, Programming

Your 7890 Scann er and C h ap ter 6, Troubleshooting Your 7890 Scanner. Also, be sure that the application program

running on your host terminal or PC can communicate with the 7890 Scanner. Us e the following procedure if you need to determine the communications protocol programmed in your 7890 Scanner.

1 Apply power to the 7890 Scanner.

2 Scan the Diagno stics tag; must be first tag scanned

after applying power.

User’s Guide 3-9

Page 51

Installing Your 7890 Scanner

Preparing for Installation

3 Scan the Hex 3 tag. The good read tone for this tag

sounds (three beeps).

The Status Indicator flashes green and the tone beeps, identifying th e com m unications p rotocol. Th e followin g table identifies the number of beeps that sound for each communication protocol.

Tone Communication Protocol

1 short, high-pitched beep

(No beep on earliest versions of t he firmware)

1 Beep OCIA NCR Long 2 Beeps OCIA Non-NCR 3 Beeps IBM 468x - Addr 4A 4 Beeps IBM 468x - Addr 4B (1520 Bar Code

5 Beeps RS-232 6 Beeps IBM 468x - Addr 4B (Hand Held Bar

OCIA NCR Short

Reader)

Code Reader)

3-10 User’s Guide

4 Remove power from the 7890 Scanner.

End of procedure.

■

Page 52

Figure 3-3 7890 Scanner Connections

Installing Your 7890 Scanner

Installing the Scanner

The Interface Cable shipped with your 7890 Scanner connects directly to the host terminal or PC. Since the installation is different from one terminal to another, you need to refer to your terminal documentation for instructions about how to connect the Interface Cable. Refer to the terminal and the application documentation for specific information about the hardware and software configuration needed to make the terminal scanner ready. Refer to Figure 3-3 while performing the following inst a llat ion s t e p s.

Interface C able

Scanner M odule C able

7890 Scan ner

Pow er M odule

R0 014

User’s Guide 3-11

Page 53

Installing Your 7890 Scanner

Installing the Scanner

Connecting the Scanner Module Cable

Connecting the Power Module

1 Connect one en d of the Scanner Module Cable to the

7890 Scanner.

2 Connect the other end of the Scanner Module Cable

to the box on the end of the Interface Cable.

1 Verify that y ou have the correct Power Module for

your electrical outlet.

2 Connect the power connector on the end of the

Power Module Cable to the box on the end of the Interface Cable.

3 Plug the Power Module into an electrical outlet.

When the 7890 Scanner receives power, the diagnostics checks various hardware components. If the scanner passes the diagnostic tests, it gives a "ready" indication; four quick beeps of increasing frequency and two flashes of the Status Indicator.

Does the scanner give "ready" indication?

3-12 User’s Guide

Yes

End of procedure. ■

Continue to Chapter 6

Troubleshooting Your 7890 Scanner ➝➝

Page 54

Modifying the Scanner Program

Installing Your 7890 Scanner

Installing the Scanner

Your 7890 Presentation Scanner comes from the factory with all programming parameters set to default values. You need to change any values that do not match your system requirements. Refer to Chapter 5, Programming

Your 7890 Scann er and Appendix A, Programming Worksheet s.

If you have an NCR 7890 Presentation Scanner already programmed th e way you want it to be, you can transfer that program to another 7890 Presentation Scanner using Clone Programming as described at the end of Chapter 5 of this book.

If you change the comm u nication p rotocol, you m ay need to change the Interface Switch setting. This switch identifies the type of interface being used: OCIA, RS232, and IBM 468x. R efer to Chap ter 6, Trou bleshootin g Your 7890 Scanner for information about the Interface Switch.

Connecting the Interface Cable

1 Verify that you have the correct Interface Cable.

Refer to Terminals And Cables in this chapter.

2 Connect the Interface Cable to your host terminal or

PC. Refer to the terminal documentation for these procedures. Some terminals require a trained technician to perform this function.

User’s Guide 3-13

Page 55

Contents

Chapter 4

Operating Your 7890 Scanner

The 7890 Scanner Components ................................... 4-1

Presentation Scanning ............................................ 4-2

Pick-Up Scanning ......................................................... 4-5

Label Orientation .......................................................... 4-6

Scan Pattern Location ........................................... 4-6

Label Rotation ......................................................... 4-7

Distance from Scanner .......................................... 4-8

Read Indicators ............................................................. 4-9

Status Indicator ...................................................... 4-9

Audible Indicator ................................................... 4-9

Indicator Functions .............................................. 4-10

Bar Code Quality ......................................................... 4-11

Taking Care of Your Scanner ..................................... 4-13

Scanner Operation Summary .................................... 4-14

1 Scan the Bar Code Label ................................... 4-14

2 Observe the Read Indication ........................ 4-14

User’s Guide i

Page 56

Contents

ii User’s Guide

Page 57

Figure 4-1 NCR 7890 Presentation Scanner

Operating Your 7890 Scanner

The 7890 Scanner Components

The 7890 Scanne r Components

Before using your 7890 Presentation Scanner, you need to be familiar with some of its com p o n ents. F ig u re 4-1 shows the scanner and identifies some of the parts and features.

Scanner M odule C able

Status Indicator

Scan W indow

Handle

R0 021

User’s Guide 4-1

Page 58

Operating Your 7890 Scanner

Presentation Scanning

Presentation scanning is much different from that used at checkout stands, such as in grocery stores. In the checkout stand environment, normally large quantities of items must be scanned in a short amount time. Therefore, you pass the items over the scanner, moving them from one side of the checkstand to another. The scanner reads the label while the items are moving by.

With presentation scanning, you simply present the label to the scanner and then remove it. Do not move the label past the scanner, but to the scanner. Presentation scanning is particularly useful in a retail environment where the number of items associated with each transaction is normally small. There are three simple steps to presentation scanning.

1 Move the bar code label to the scanner as shown in

Figure 4-2. As the package approaches the scanner, the Item Detector senses the package. If the laser light is off, it turns on to scan the bar code. The Item Detector emits an invisible light through the corner of the Scan Window. If you have a small item, be sure to initially position it to ward th e corner of the Scan Window so it can be detected by the item detector.

4-2 User’s Guide

Page 59

Figure 4-2 Presentation Scanning (1 of 3)

Operating Your 7890 Scanner

The 7890 Scanner Components

Ite m D e te c to r

Figure 4-3 Presentation Scanning (2 of 3)

Scan W indow

11536

2 Position the bar code label completely within the red

Laser Scan Pattern as indicated in Figure 4-3.

Normally the bar code should be three to four

inches from the scanner. When the label is read the

Status Indicator turns red, then returns to green. If

enabled, a Good Read Tone also sounds.

Laser S can Pattern

Status Indicator

11537

User’s Guide 4-3

Page 60

Operating Your 7890 Scanner

The 7890 Scanner Components

Figure 4-4 Presentation Scanning (3 of 3)

3 Move the bar code label away from the scanner as

shown in Figure 4-4. The scanner is now ready to read another bar code label. After not detecting an item for a period of time, the laser light turns off. To read another bar code, simply perform these three steps again.

11538

4-4 User’s Guide

Page 61

Figure 4-5 Pick-Up Scanning

Operating Your 7890 Scanner

Pick-Up Scanning

Occasionally you have merchandise that cannot be picked-up and presented to the scanner. The package may be too heavy or too awkward to hold while trying to position the bar code label. In these circumstances you can pick up the scanner and take it to the merchandise. The 7890 Scanner includes a handle so that you can easily pick the scanner up and hold it. Being light-weight, you can present the scanner to the merchandise with little effort. Figure 4-5 shows the pickup operation.

Careful

R 0025

User’s Guide 4-5

Page 62

Operating Your 7890 Scanner

Label Orientation

Scan Pattern Location

Label Orientation

Because your 7890 Scanner produces a dense, omnidirectional scan pattern, labels can be read from many different angles.

In order for the scanner to read a label, the center 90% of one scan line must cross the bar code. To successfully read Code 39 and Interleaved 2 of 5 labels, the scan line must cross the entire label, not missing any of the bars or spaces. UPC and Code 128 labels can be read by piecing together two reads of slightly more than half of each side of the bar code. Therefore, these labels are much easier to read and do not require as much accuracy when presenting the label to the scanner.

Because of the large scan pattern, you do not have to be very precise when you position the label. However, the concentration of scan lines is greater in the center of the scan pattern. Because of this, fewer rejects occur if you try to position the merchandise so that the label is presented toward the center of the scan pattern.

4-6 User’s Guide

Page 63

Label Rotation

Operating Your 7890 Scanner

Label Orientation

Your 7890 Scanner can read labels that are presented in many different positions. As shown in Figure 4-6, you can present labels that are rotated left or right 30 degrees from center, up or down 30 degrees from center, and 360 degrees around center.

Figure 4-6 Label Rotation

360

R 0024

User’s Guide 4-7

Page 64

Operating Your 7890 Scanner

Label Orientation

Distance from Scanner

For optimum reading, the distance that you must place the label from the 7890 Scanner depends on the density and height of the bar code. You can relate this to focusing a camera, where you change the focus setting based on how far away the object is.

Depending on the la bel, reading can ran ge from zero to six inches. Therefore, when you use your scann er, move the label toward the scanner to a comfortable distance in front of the scan window (approximately three to four inches) an d h old t h e ite m momentarily. Normally the "Good Read" indication occurs within one fourth of a second. If this does not happen, try moving the label a little closer to the scanner.

4-8 User’s Guide

Page 65

Status Indicator

Operating Your 7890 Scanner

Read Indicators

Your 7890 Presentation Scanner provides two methods of indicating valid reads: Status Indicator (visual) and audible tone. The Status Indicator is always enabled; however, you can disable the audible tone.

The Status Indicator light is located on the corner of the scanner, close to the Scan Window. When the 7890 Scanner detects an object, the laser and the mirror motors turn on and the Status Indicator turns g reen. When an accurate read of a valid bar code occurs, the Status Indicator turns red until the bar code is removed, it then turns green again. If the scanner does not detect another label, the Status Indicator stays green until the scanner turns itself off.

Audible Indicator

When using IBM 468x communications, the Status Indicator flashes red (group of nine flashes repeated at 3-second intervals) when the 7890 is offline. This can be caused if the IBM host terminal has not established communications with the 7890, the host terminal is not turned on, or the interface cable is not connected.

You can program a "Good Read" tone that indicates the scanner’s ability to a ccu rat e ly read ba r code s . This permits you to identify good reads without having to observe the Status Indicator. No tone is generated if the scanner does not detect a valid bar code.

User’s Guide 4-9

Page 66

Operating Your 7890 Scanner

Read Indicators

Through programming, you can enable, or disable the "Good Read Tone." If the "Good Read Tone" is enabled, you can also specify its frequency and duration. The details for programming the "Good Read Tone" are in Chapter 5, Programming Your 7890 Scann er. Your 7890 Scanner comes with the "Good Read Tone" enabled.

As you move the bar code label into the scan pattern,

Indicator Functions

the scanner tells you if it is able to read th e labe l. The following chart identifies the meaning of each read indicator.

Indicatio n Meaning Action To Take

Successful Power Up

• Statu s I ndicator flashes

twice

Scanner successfully passed Level 0 Diagnostics.

Scanner is ready to use.

• Four quick beeps going

from low to high frequen cy

Good Read

• Status Indicator goes red,

then returns to green

Scanner accurately read the bar code label.

• Good Read tone sounds if

enabled

No Indication

• Statu s I n dicator stays green

4-10 User’s Guide

Scanner ha s no t detected a bar code.

Continue t o ne x t i t e m .

Verify that label appears good. Straighten label if folded, as sur e that bar code is not covered, and try to read again. Be sure bar code is within the scan pattern and close to the scan window. If scanner still cannot read label, key in merchandise information on terminal.

Page 67

Figure 4-7 Unreadable Bar Codes

Operating Your 7890 Scanner

Bar Code Quality

The ability of your 7890 Scanner to read bar code labels depends greatly on the quality of the label. Althoug h the 7890 can often read bar codes that appear to be bad, it cannot read bar codes that are obstructed, defective, or damaged. If the scanner cannot read the bar code, you must key in the merchandise information at the terminal and go on to the next item. Be sure to tell your supervisor if many ba r code labe ls are defective. F igure 4-7 shows some examples of bad bar codes. These are only exam ples and are no t a ll in clu sive.

02345

23 4 5

678

2345

02345

678

R 0026

User’s Guide 4-11

Page 68

Operating Your 7890 Scanner

Bar Code Quality

The readability of a labe l de p e n ds on variables such as sizing, placement, color, paper type, ink viscosity, and package coatings. The middle of a printing run can yield erroneous labels due to the many variants involved. In particular, poor color contrast and marginal print quality can make a label hard to read.

A label should be considered readable if it m e et s or exceeds the requirements set forth in the UPC Symbol Specification put out by the UPC Council, Inc. and dated March 1982, and the General Specification for Article Symbol Marking, C op y righ t EAN-1977.

4-12 User’s Guide

Page 69

Operating Your 7890 Scanner

Note:

Taking Care of Your Scanner

Although your 7890 Scanner is rugged, remember to treat it carefully. Keeping the Scan Window clean helps keep th e read ra te e x ceptionally high. Follow th e se simple instructions to keep your scanner clean and wellmaintained.

• Clean the scanner body with a soft cloth dampened

by lukewarm water and a mild soap.

• When the Scan Window is dirty, clean it with a cloth

dampened by a common cleaning agent such as

Windex, Glass Plus, or 409.

Spray the cleaner on the cloth, do not spray directly on the scanner. Also, totally avoid abrasive scrubbing or excessive cleaning agents.

Your 7890 Scanner is designed to provide you with long, trouble-free s e rvice . Howe v er, it is up t o y o u t o care for your scan n e r. The following lis t id en t ifies things you should consider in taking care of your scanner.

• U s e the Holder if you have on e.

• Handle the scanner with care.

• Keep the Scan Window clean.

• Replace the Scan Window if excessively scratched.

• Do not pick up the scanner by the cable.

• Do not submerge the scanner or let it get wet.

User’s Guide 4-13

Page 70

Operating Your 7890 Scanner

Scanner Operation Summary

This is a summary description of how to operate your 7890 Presentation Scanner. Us e this s u m mary after you have read this entire chapter and have scanned a few bar code labels.

1 Scan the Bar Code Label

2 Observe the Read

Indication

Presentation Scanning

Move the merchandise toward the scanner so that the bar code label moves toward the center of the Scan window. To minimize scratching, try not to contact the Scan Window.

Pick-up Scanning

Carefully pick up the scanner and move it toward the merchandise so that the center of the Scan Window moves toward the bar code label. To minimize scratching, try not to contact the merchandise.

The scanner gives either a Good Read Indication or no indication. A Good Read is indicated by the Status Indicator going from green to red and then back to green. If the Good Read tone is enabled, the 7890 also beeps.

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Operating Your 7890 Scanner

Scanner Operation Summary

Good Read Indication

Put merchandise on counter top and go to next item entry.

End of this item entry.

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No Read Indication

Examine the bar code label. If it appears to be good, remove any folds or obstructions and try to read it again. Be sure you position the label within the scan pattern and close to the s cann er. If bar code still does not read, key in merchandise information on the terminal.

End of this item entry.

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User’s Guide 4-15

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Contents

Chapter 5

Programming Your 7890 Scanner

Overview - Programming Your Scanner .................... 5-1

Preparing for Your Program ................................. 5-1

Completing the Worksheets ................................. 5-1

Entering Your Program .......................................... 5-2

Requirements .......................................................... 5-2

Helps ....................................................................... 5-2

Suggestion .............................................................. 5-2

Programming Considerations ..................................... 5-3

Programming Worksheets .................................... 5-3

Programming Tags ................................................. 5-3

Programming Mode ............................................... 5-5

Entering Your Program ................................................ 5-6

Communications Protocol ........................................... 5-7

Protocol ................................................................... 5-7

Sample Program ..................................................... 5-8

Entering the Program ........................................... 5-8

Good Read Tone ......................................................... 5-10

Tone On/Off ......................................................... 5-10

Tone Frequency .................................................... 5-10

Tone Length ........................................................... 5-11

Parameter Shortcuts .............................................. 5-11

Sample Program ................................................... 5-12

Entering the Program ......................................... 5-12

Timers .......................................................................... 5-16

Lockout Time ........................................................ 5-16

User’s Guide i

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