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NCR 7870 User Manual

NCR 7870
228 pages
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NCR 7870 Scanner/Scale
Release 1.0
User's Guide
BST0-2121-90
Issue G

Table of Contents

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NCR 7870 Specifications

General IconGeneral
Scanning TechnologyLaser
Power Supply5 VDC ± 10%
ConnectivityRS-232, USB, Keyboard Wedge
Operating Temperature0° to 40° C
Storage Temperature-40°C to 70°C
Humidity5% to 95% (non-condensing)

Summary

Chapter 1: Introduction

Chapter 2: Features, Functions, and Kits

Programming the 7870

Introduction to how programming tags alter unit operating parameters.

Scale Features and Functions

Details the load cell, reset, and auto-zero functions of the scale.

Chapter 3: Site Preparation

Customer Responsibilities

Outlines customer duties for site preparation and compliance.

Environmental Requirements

Specifies operating, storage, and transit conditions for the unit.

Checkstand Power and Wiring Considerations

Guidelines for power supply and electrical wiring at the checkstand.

Chapter 4: Installation

Installing Unit in Checkstand

Step-by-step guide for physically mounting the unit in the checkstand.

Determining if the Unit is Operational

How to confirm unit functionality using diagnostics after installation.

Programming

Initial programming steps for setting parameters from factory defaults.

Determining Communications Protocol

Method to identify the current communications protocol setting.

Scale Address for IBM

Setting the scale address for IBM terminals in single-cable configurations.

Chapter 5: Calibration

Calibration Procedure

Comprehensive steps to calibrate the scale accurately.

Verifying Calibration

Methods to confirm the calibration process was successful and accurate.

Securing the Calibration Switch

Procedures for securing the calibration switch after completion.

Chapter 6: Operation

Operating Instructions

Steps for powering up and initiating operation of the unit.

Scanning Procedure

Detailed instructions for scanning items correctly.

Weighing Procedure

Step-by-step guide for using the scale function.

Chapter 7: Programming

General

Introduction to the programming chapter and its sections.

How to Program the NCR 7870

Overview of the programming process, including creating and entering programs.

Program Parameter Descriptions

Detailed explanation of each programmable parameter and its settings.

Communications Protocol

Settings for selecting the communication protocol with the host terminal.

Good Read Tone

Configuration of tone parameters for successful bar code reads.

Timers

Parameters for lockout time and active time settings.

Bar Codes – 1

Programming options for UPC/EAN bar code reading.

RS-232 Parameters – 1

Configuration of Baud Rate, Parity, Stop Bits, and Handshake for RS-232.

RS-232 Parameters – 2

Configuration of BCC, Interface Control, and Check Digit for RS-232.

Chapter 8: Troubleshooting

Fault Identification

How scanner and scale problems are indicated through signals and codes.

Scanner Troubleshooting Chart

Guide to diagnosing and resolving scanner operational issues.

Scale Troubleshooting Chart

Guide to diagnosing and resolving scale errors and operational problems.

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