Problems Transmitting Data Through The Serial Port; Problems While Scanning Bar Codes - Intermec CK30 User Manual

Chapter 6 — Troubleshooting and Maintaining the CK30

Problems Transmitting Data Through the Serial Port

If you are having problems sending or receiving data through the
integrated serial port on the CK30, check these possible
problems:
• Make sure the CK30 is connected to the PC, host computer,
or RS-232 serial device using the appropriate cable adapter
and null modem cable.
• If the CK30 is in a communications dock, make sure that the
communications dock is connected to the serial device using
the appropriate cable.
• You cannot use the decoded serial adapter or AA2 to connect
to any device other than a decoded scanner. The CK30 auto-
detects the serial adapter or AA2, and the scanner software
makes the COM port unavailable. Instead, use the AA3 to
connect a device like a printer to the CK30. The AA3
requires an external power source.
For more information on using the serial port, see "Configuring
Serial Communications" on page 46.

Problems While Scanning Bar Codes

Problem
You cannot see a red beam of light
from the scanner when you press the
Scan button and aim the scanner at a
bar code label.
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Solution
Make sure that you are using a supported
scanner. For details, see "Attaching a Tethered
Scanner" on page 25 or "Attaching a Scanner to
the Serial Port" on page 27.
If you are using a supported scanner, there are
two possible problems:
You may be too far away from the bar code
•
label. Try moving closer to the bar code label
and scan it again.
You may be scanning the bar code label
•
"straight on." Change the scanning angle and
try again.
You can test the effective range of the scanner.
Move within 2 feet of a wall and test the scanner.
You need to be within the scanning range to scan
bar code labels. For help scanning bar codes, see
"Scanning Bar Codes" on page 22.
CK30 Handheld Computer User's Manual