Maintenance, Troubleshooting
& Technical Specifications 3-3
Introduction

This chapter provides suggested scanner maintenance, troubleshooting, technical specifications, and signal descriptions (pinouts).

Maintenance

Cleaning the exit window is the only maintenance required. A dirty window may affect scanning accuracy.

• Do not allow any 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

Table 3-1. Troubleshooting

Problem Possible Causes Possible Solutions
Beeper Indications
The scanner emits frequ ent beeps. No power to the scanner. Check the system power. If the configuration requires
a power supply, re-connect the power supply.
Incorrect host interface cable is used. Verify that the correct host interface cable is used. If
not, connect the correct host interface cable.
Interface/power cables are loose. Check for loose cable connections and re-connect
cables.
Scanner emits low/high/low beeps. ADF transmit error. See Chapter 14, Advanced Data Formatting.
Invalid ADF rule is detected. See Chapter 14, Advanced Data Formatting.
Scanner emits low/high beeps. Input error, incorrect bar code or Cancel bar code
was scanned.
Scan the correct numeric bar codes within range for
the parameter programmed.
Scanner emits low/high/low beeps. The Code 39 buffer was erased or there was an
attempt to clear or transmit an empty buffer.
Normal when scanning the Code 39 Buffering Clear
Buffer bar code or upon attempt to transmit an
empty Code 39 buffer.
Scanner emits low/high/low/high beeps. Out of host parameter storage space. Scan Default Parameters on page 4-5.
Out of memory for ADF rules. Reduce the number of ADF rules or the number of
steps in the ADF rules.
Scanner emits high/low beeps. The scanner is buffering Code 39 data. Normal.
Scanner emits high/high/high/low beeps. RS-232 receive error. Normal during host reset. Otherwise, set the
scanner's RS-232 parity to match the host setting.
Scanner emits four long low beeps. A transmission error was detected in a scanned
symbol. The data is ignored.
This occurs if a unit is not properly configured. Check
option setting.
Scanner emits four short high beeps (USB only). Scanner has not completed initialization. Wait several seconds and scan again.
Scanner emits a short low/high/low/high beep
sequence while it is being programmed.
Out of ADF parameter storage space. Erase all rules and re-program wi th shorter rules.