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Chapter 13: Scanners
Types Of Scanners
93
Psion Mobile Devices Developers Guide
13.1 Types Of Scanners
The Mobile Devices SDK enables applications to use the Psion Scanner Services. Scanner Services supports
the following types of bar code scanner:
• Non-decoded Laser Scanners
• Decoded Laser Scanners
• 1D imagers
• 2D imagers (for legacy applications only, see Section below)
For a list of the scanners supported by your Psion computer, see the user manual for the computer.
Non-decoded Laser Scanners
Non-decoded laser scanners present unprocessed scan data to the computer. These scanners rely on
Scanner Services to do the decoding. The Mobile Devices SDK returns the scan data as a character string to
the calling program.
There is only one set of configuration parameters for non-decoded laser scanners on each computer. So, if
there is more than one non-decoded laser scanner in, or attached to, a computer, they all use the
same configuration.
Decoded Laser Scanners
Decoded laser scanners have built in decoders; they process the raw scan data themselves. The Mobile
Devices SDK returns the scan data as an undelimited character string.
Imagers
The Mobile Devices SDK supports bar code scanning by legacy imagers; however, the Mobile Devices SDK
must not be used for new applications involving recent imagers—the Imaging Services SDK supports the
current imager models.
For a list of Psion devices and the SDK to use to control the imagers see community.psion.com/knowl-
edge/w/knowledgebase/how-to-select-an-sdk-for-an-application-that-uses-an-imager-or-a-scanner.aspx
The Mobile Devices SDK does not support the capture of pictures on any imager. All picture capture must
be controlled through the Imaging Services SDK.
13.2 External Scanners
A Psion computer can have several external scanners. On the 753x, 8525, and 8530, models one of them
can be a non-decoded laser scanner. On all other Psion computers, they must all be decoded scanners.
The ports that the scanners are connected to can be on one of the following:
• Psion computer
•Docking station
• Snap module
The port can be:
•USB port
• Serial port
• Tether port
See the User Manual for your Psion computer for the availability and the location of tether ports, USB
ports, and serial ports.
13.2.1 Scanner connected to a USB port
This applies to decoded scanners only. These scanners must be externally configured by scanning configu-
ration bar codes. Bar code data is received by the Mobile Devices SDK as keyboard input.
Important: For all non-legacy imagers, the Imaging Services SDK must be used for all 2D imager
applications including reading bar codes.
- MOBILE DEVICES 1
- TA B L E O F 5
- CONTENTS 5
- Chapter 4: Reset 6
- Chapter 5: Display 6
- Chapter 6: Indicators 6
- Chapter 8: Peripherals 6
- Chapter 9: Card Slots 7
- Chapter 10: Serial Ports 7
- Chapter 13: Scanners 7
- Chapter 14: Audio 8
- Chapter 16: Windows Shell 9
- Chapter 17: Trigger Control 9
- Table of Contents 10
- Chapter 21: GPS 11
- Chapter 22: Sensors 11
- Chapter 23: Other Features 12
- Appendices 12
- Appendix A: Resources 12
- Appendix B: Registry Keys 12
- INTRODUCTION 13
- 1.1 About This Manual 14
- 1.2 Text Conventions 15
- 1.3 Non-Psion Computers 15
- Chapter 1: Introduction 16
- BACKLIGHT 17
- 2.1 Backlighting 19
- 2.5 Backlight API Elements 25
- BATTERIES AND POWER 27
- MANAGEMENT 27
- 3.1 Suspend Timeout 29
- 3.2 Psion Power States 30
- 3.2.7 Power Off 31
- 3.6.1 Initiation of Suspend 34
- 3.9 Suspend API Elements 35
- 3.10 Power Management 35
- 3.11 Battery Information 36
- 3.11.3 Smart Batteries 37
- 4.1 Reset Types and Effects 41
- Chapter 4: Reset 42
- Reset Types and Effects 42
- 4.5 Code Samples for Resets 47
- 4.6 Reset API Elements 47
- DISPLAY 5 49
- 5.1 Display 51
- 5.4 Display API Elements 53
- INDICATORS 55
- 6.1 Indicators 57
- 6.2 Using LED Colours 57
- 6.3 Controlling Pulses 58
- 6.7 Indicator API Elements 58
- KEYBOARD AND 59
- KEYBOARD REMAPPING 59
- 7.1 Key b o a rd 61
- 7.1.2 Disabling The Keyboard 62
- 7.2 Keyboard Remapping 63
- 7.2.1 ORANGE Key and SYM Key 64
- Function Description 65
- 7.3 Key Insertion 71
- Key Insertion API Elements 72
- PERIPHERALS 73
- 8.1 Overview 75
- 8.2 Definition of Terms 75
- 8.3 Events 75
- 8.4 Docking Station 75
- 8.5 Tether Ports 76
- Chapter 8: Peripherals 77
- CARD SLOTS 79
- 9.1 Card Slots 81
- Chapter 9: Card Slots 84
- SERIAL PORTS 85
- 10.1 Overview 87
- Port Assignments 89
- 10.9 Java 90
- Chapter 10: Serial Ports 91
- Serial Port API Elements 91
- PERMANENT STORAGE 93
- 11.1 Permanent Storage 95
- RAS (REMOTE ACCESS 97
- SERVICE) 97
- 12.1 Overview 99
- 12.3 RAS Architecture 100
- 12.5 Getting Started with RAS 100
- 12.6 Code Samples for RAS 100
- 12.7 RAS API Elements 101
- SCANNERS 103
- 13.1 Types Of Scanners 105
- 13.2 External Scanners 105
- Chapter 13: Scanners 106
- 13.3 Internal Scanners 107
- 13.4 Symbologies 109
- 13.5 Configuring Scanners 110
- Decoded Laser Scanner Options 116
- Scanner setting key = Decoded 116
- 13.6.2 Code 39 Settings 120
- 13.6.3 Trioptic Code Settings 122
- 13.6.4 Code 128 Settings 123
- 13.6.5 EAN 13 Settings 125
- 13.6.6 EAN 8 Settings 127
- 13.6.7 UPC A Settings 129
- 13.6.8 UPC E Settings 131
- 13.6.10 Codabar Settings 135
- 13.6.11 Code 93 Settings 137
- 13.6.12 Code 11 Settings 139
- 13.6.14 MSI Plessey Settings 143
- 13.6.17 IATA 2 of 5 Settings 147
- 13.6.18 Telepen Settings 148
- 13.6.20 PosiCode Settings 152
- 13.6.21 Composite Codes 152
- 13.6.22 TLC-39 Settings 154
- 13.6.23 PDF417 Settings 155
- 13.6.25 Code 16K Settings 157
- 13.6.26 Code 49 Settings 158
- 13.6.27 Codablock Settings 158
- 13.6.29 2D QR Code Settings 160
- 13.6.30 2D MaxiCode Settings 161
- 13.6.31 2D Aztec Settings 162
- 13.6.37 Postal - Kix Settings 167
- 13.7 Reading Bar Codes 171
- 13.8 Scanner Events 172
- AUDIO 14 173
- 14.1 Sound Hardware 175
- 14.6 Sound API Elements 176
- 14.7 Microphone 177
- 14.8 Audio Input 177
- 14.9 Audio Input API Elements 178
- SYSTEM INFORMATION 179
- 15.1 System Information 181
- 15.2 Machine Type 181
- 15.3 Model 181
- 15.5 Psion Build Codes 181
- 15.6 Psion Version Numbers 182
- WINDOWS SHELL 185
- 16.1 Windows Shell 187
- 16.2 Setting Windows Security 187
- TRIGGER CONTROL 189
- 17.1 Overview 191
- 17.2 Definition Of Terms 191
- 17.4 Trigger Source IDs 191
- 17.5 Trigger Associations 192
- 17.6 Double-Clicks 192
- 17.7 Events 193
- WIRELESS LOCAL-AREA 195
- NETWORKING 195
- 18.2 Supplicants 197
- 18.2.1 Namespaces 198
- 18.3 Configuring WLAN Radios 199
- 18.4 Authentication Modes 199
- 18.6.2 Encryption Modes 201
- 18.8 Summit Radio Features 202
- 18.11 Ad hoc Networks 203
- 18.12 Getting Started 203
- 18.13 Code Samples 203
- 18.14 WLAN API Elements 204
- WIRELESS WIDE-AREA 205
- 19.4 Supported WWAN Modems 208
- 19.4.2.2 Configuration 209
- 19.4.2.3 AT Commands 209
- 19.4.4 Packet Data 211
- 19.4.6 GSM Power Driver 211
- 19.5 Initializing WWAN 212
- WWAN Driver Status Flags 213
- Initializing the WWAN Driver 215
- 19.6 Closing WWAN 217
- Connecting to the Internet 218
- 19.7.3 The DbGprs.csv File 221
- 19.7.5 Roaming 222
- 19.8 Access Flags 223
- 19.10 WWAN API Elements 225
- 19.11.1 SMS API Elements 226
- 19.13 Voice Calls on a WWAN 227
- 19.13.1 Initializing WWAN 228
- Initializing Voice Over WWAN 229
- 19.13.4 Making a Phone Call 230
- 19.13.5 Voice Call States 231
- Voice Call States 232
- Receiving a Phone Call 233
- Processing Voice Calls 234
- Terminating Voice Calls 235
- 19.13.9 Call Forwarding 236
- Audio for Voice Over WWAN 237
- 19.14 Phone Books 238
- 19.14.2 Phone Book Types 239
- 19.15 Resource Materials 240
- REGISTRY-BASED WWAN 241
- 20.1 Overview 243
- 20.2.3 Network Status 245
- 20.2.4 Packet Data Status 245
- 20.2.5 Voice Call Status 246
- 20.5 Sample Source Code 248
- Sample Source Code 249
- 21.1.1 Built-in GPS 255
- 21.1.2 End-cap GPS 255
- 21.1.3 External GPS 255
- 21.3 GPS Configuration 256
- 21.4 Processing GPS Data 256
- 21.5 Getting Started with GPS 256
- 21.6 Code Samples for GPS 256
- 21.7 GPS API Elements 256
- SENSORS 22 257
- 22.1 Introduction 259
- 22.2 Accelerometer 259
- 22.3 Gyroscope 259
- ±9 milli-degrees per second 260
- ±4 gauss 260
- 22.5 Light Sensor 261
- 22.6 Proximity Sensor 261
- Chapter 22: Sensors 262
- OTHER FEATURES 263
- 23.1 Vibration 265
- 23.3 PsionVU 266
- APPENDIX: RESOURCES 267
- Manuals and URLs 268
- APPENDIX: REGISTRY 271
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