Table of Contents
Advertisement
Introduction
This chapter provides suggested scanner maintenance, troubleshooting, technical specifications, and signal descriptions (pinouts).
Maintenance
Cleaning the scan window is the only maintenance required. A dirty window can affect scanning accuracy.
• Do not allow abrasive material to touch the window.
• Remove any dirt particles with a damp cloth.
• Wipe the window using a tissue moistened with ammonia/water.
• Do not spray water or other cleaning liquids directly into the window.
Troubleshooting
Problem
The aiming pattern does not appear when pressing
the trigger.
Scanner emits short low/short medium/short high
beep sequence (power-up beep sequence) more than
once.
Digital scanner emits aiming pattern, but does not
decode the bar code.
Digital scanner emits 4 short high beeps during
decode attempt.
Table 3-1. Troubleshooting
Possible Causes
No power to the digital scanner.
Incorrect host interface cable is used.
Interface/power cables are loose.
Digital scanner is disabled.
If using RS-232 Nixdorf B mode, CTS is not asserted. Assert CTS line.
Aiming pattern is disabled.
The USB bus may put the digital scanner in a state
where power to the digital scanner is cycled on and
off more than once.
Digital scanner is not programmed for the correct bar
code type.
Bar code symbol is unreadable.
The symbol is not completely inside aiming pattern. Move the symbol completely within the aiming
Digital scanner has not completed USB initialization. Wait several seconds and scan again.
Maintenance and Technical Specifications 3-3
Possible Solutions
If the configuration requires a power supply,
re-connect the power supply.
Connect the correct host interface cable.
Re-connect cables.
See the technical person in charge of scanning.
Enable the aiming pattern. See
Decode Aiming
Pattern on page
5-7.
Normal during host reset.
Program the digital scanner to read that type of bar
code. See
Chapter 10,
Symbologies.
Scan test symbols of the same bar code type to
determine if the bar code is defaced.
pattern.
Advertisement
Table of Contents
