Metrologic Instruments MS7100 - Manual (Page 25)

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SYMPTOM
The unit powers up properly, lasers come on, but the unit does not scan and does not
beep when a bar code is presented
POSSIBLE CAUSE(S) SOLUTION
Beeper disabled. No tone selected Enable beeper. Select tone
Scanning a particular symbology that is UPC/EAN, Code 39, interleaved 2 of 5,
not enabled Code 93, Code 128 and Codabar are enabled
by default. Verify that the type of bar code
being read has been selected
The scanner has been programmed for a Verify that the bar code that is being scanned
character length lock, or a minimum falls into the criteria. (Typical of Non-
length and bar code being scanned does
not satisfy the programmed criteria UPC/EAN codes.) (The scanner defaults to
a minimum of 4 character bar code)
SYMPTOM
The scanner scans a bar code but the scanner locks up (green LED comes on and stays
on) after the first scan
POSSIBLE CAUSE(S) SOLUTION
The scanner is configured to support If the scanner is setup to support ACK/NAK,
some form of host handshaking but is RTS/CTS, XON/XOFF or D/E, verify that
not receiving the signal the host cable and host are supporting the
handshaking properly
SYMPTOM
The scanner scans and transmit but the data is not correct at the host
POSSIBLE CAUSE(S) SOLUTION
The scanner’s data format does not Verify that the scanner’s data format
match the host system requirements matches that required by the host. Make sure
that the scanner is connected to the proper
host port