HP Computer Dokumentacja Pobierz pdf (Strona 48)

Drive handling

CAUTION: Drives are fragile components that must be handled with care. To prevent damage to the

computer, damage to a drive, or loss of information, observe these precautions:

Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer

is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

Before handling a drive, be sure that you are discharged of static electricity. While handling a drive, avoid

touching the connector.

Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and be sure

that the optical drive tray is closed.

Handle drives on surfaces covered with at least one inch of shock-proof foam.

Avoid dropping drives from any height onto any surface.

After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.

Avoid exposing an internal hard drive to products that have magnetic fields, such as monitors or speakers.

Avoid exposing a drive to temperature extremes or liquids.

If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective

packaging and label the package “FRAGILE.”

Grounding guidelines

Electrostatic discharge damage

Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure

determine the degree of sensitivity. Networks built into many integrated circuits provide some protection,

but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.

A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or

microcircuitry. Even if the spark is neither felt nor heard, damage may have occurred.

An electronic device exposed to ESD may not be affected at all and can work perfectly throughout a normal

cycle. Or the device may function normally for a while, then degrade in the internal layers, reducing its life

expectancy.

CAUTION: To prevent damage to the computer when you are removing or installing internal components,

observe these precautions:

Keep components in their electrostatic-safe containers until you are ready to install them.

Before touching an electronic component, discharge static electricity by using the guidelines described in this

section.

Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.

If you remove a component, place it in an electrostatic-safe container.

The following table shows how humidity affects the electrostatic voltage levels generated by

different activities.

CAUTION: A product can be degraded by as little as 700 V.

40 Chapter 4 Removal and replacement procedures

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Argox AS-9500 Manual de usuario (159 paginas)

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NOTICE:

Using the ArgoxScan 9500

CONTENTS

Introduction

Default Setting

AS-9500 Specification

Reading Skills of AS-9500

Interface Selection

Handshaking

USB HID

USB Virtual COM

Pin Assignments

Keyboard Layout Setting

Switzerland (German)

System Control

Scanning Output

Scanning Mode

Indication

Thermal and Centering

Decode Search Mode

Output Sequence

Enter Sequence

Default Sequence

Required

On/Not Required

Print Contrast

Video Reverse

Working Orientation

Code Option

Codabar

Code 39

Append On

*Append Off

Code 32

Interleaved 2 of 5

Code 93

Straight 2 of 5 Industrial

Straight 2 of 5 IATA

Matrix 2 of 5

Code 11

Code 128

Code Page

Telepen

UPC-A

UPC-E0

EAN/JAN-13

EAN/JAN-8

Plessey Code

Off

GS1 DataBar Expanded

PosiCode

Codablock F

Code 16K

Code 49

MicroPDF417

EAN•UCC Composite Codes

Postal Codes

Message Length

Default = 80

QR Code

Data Matrix

100

MaxiCode

101

Aztec Code

102

Minimum Message Length

103

Maximum Message Length

103

String Format

104

Prefix/Suffix

104

Disable

107

*Enable

107

Intercharacter Delay

108

Delay Length

108

Character Trigger Delay

108

Interfunction Delay

109

Intermessage Delay

109

Data Formatting

110

To Add a Data Format

111

Data Format Editor Commands

113

Search Commands

114

Miscellaneous Commands

114

Data Formatter

115

Alternate Data Format 1

116

Alternate Data Format 2

116

Alternate Data Format 3

116

Imaging Commands

117

Image Ship - IMGSHP

119

IMGBOX Modifiers

124

OCR Programming

126

OCR Fonts

127

U.S. Currency Font

128

MICR E-13B Font

128

SEMI Font

129

OCR Templates

130

Character Match Sequences

131

Reading Multi-Row OCR

135

OCR Check Character

136

137

OCR ISBN Application Example

141

OCR Template Codes

143

Utilities

144

Test Chart

146

Terminal ID

151

Product Code ID

152

Save OCR Template

156

Discard OCR Template

156

( Page.145)

157

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