Metrologic Instruments MS7120 Series - Manual (Page 27)

23
Troubleshooting Guide (continued)
SYMPTOMS POSSIBLE CAUSE(S) SOLUTION
The unit powers Beeper disabled. No tone Enable beeper. Select tone
up, but does not selected
scan and/or beep
The unit powers Scanning a particular UPC/EAN, Code 39, interleaved 2 of
up, but does not symbology that is not 5, Code 93, Code 128 and Codabar
scan and/or beep enabled are enabled by default. Verify that the
type of bar code being read has been
selected
The unit powers The scanner has been Verify that the bar code that is being
up, but does not programmed for a scanned falls into the criteria. (Typical
scan and/or beep character length lock, or a
minimum length and bar
code being scanned does
not satisfy the programmed
criteria of Non-UPC/EAN codes.) (The
scanner defaults to a minimum of 4
character bar code)
The unit scans a The scanner is configured If the scanner is setup to support
bar code, but to support some form of ACK/NAK, RTS/CTS, XON/XOFF or
locks up after the host handshaking but is not D/E, verify that the host cable and host
first scan (red receiving the signal are supporting the handshaking
LED stays on) properly
The unit scans, The scanner’s data format Verify that the scanner’s data format
but the data does not match the host matches that required by the host.
transmitted to system requirements Make sure that the scanner is
the host is connected to the proper host port
incorrect