Metrologic Instruments MS2422, MS2421 Scanner and the communication port match and the program is

TROUBLESHOOTING

Symptom	Possible Cause(s)	Solution
All Interfaces
	The print quality of the bar
	code is suspect.
Scanner beeps at some		The type of printer and/or the printer settings could be the
		problem.
bar codes and NOT form	Check the character length
others of the same bar	lock.	Check the print mode or change the printer settings. For
code symbology.
		example change to econo mode or high speed.
	The aspect ratio of the bar
	code is out of tolerance.
	The unit is trying to scan a	UPC/EAN and Code 128 are enabled by default. Verify that
	particular symbology that is
		the type of bar code being read has been selected.
	not enabled.
The unit powers up but
	The unit has been
does not scan and/or	configured for a character	Verify that the bar code that is being scanned falls into the
beep.	length lock or a minimum	criteria.
	length and the bar code
	being scanned does not	Typical of Non-UPC/EAN codes. The scanner defaults to a
	satisfy the configured	minimum of 4 character bar code.
	criteria.
	The bar code may have	Check if it is a check digit, character or border problem.
	been printed incorrectly.
The unit beeps at some
	The scanner is not
bar codes but NOT for	configured correctly for this	Check if check digits are set properly.
others of the same bar	type of bar code.
code symbology.
	The minimum symbol length
	setting does not work with	Check if the correct minimum symbol length is set.
	the bar code.
RS232 Only
	The com port at the host is
	not working or is not
The unit powers up OK	configured properly.
		Check to make sure that the baud rate and parity of the
and scans OK but does
	The cable is not connected	scanner and the communication port match and the program is
not communicate properly
	to the proper com port.	looking for RS232 data.
to the host.
	The com port is not
	operating properly.

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