Metrologic Instruments MS7320 사용자 설명서

30

T

ROUBLESHOOTING

G

UIDE

SYMPTOMS POSSIBLE

CAUSE(S)

SOLUTION

Scanning a particular

symbology that is not

enabled.

UPC/EAN, Code 39, interleaved

2 of 5, Code 93, Code 128 and

Codabar are enabled by default.

Verify that the type of bar code

being read has been selected.

The unit powers

up, but does not

scan and/or

beep.

The scanner has been

configured for a

character length lock,

or a minimum length

and bar code being

scanned does not

satisfy the configured

criteria.

Verify that the bar code that is

being scanned falls into the

criteria.

(Typical of Non-UPC/EAN

codes. The scanner defaults to
a minimum of 4 character bar
code.

)

The unit scans

a bar code, but

locks up after

the first scan

(red LED stays

on).

The scanner is

configured to support

some form of host

handshaking but is not

receiving the signal.

If the scanner is setup to support

ACK/NAK, RTS/CTS,

XON/XOFF or D/E, verify that

the host cable and host are

supporting the handshaking

properly.

The unit scans,

but the data

transmitted to

the host is

incorrect.

The scanner’s data

format does not match

the host system

requirements.

Verify that the scanner’s data

format matches that required by

the host. Make sure that the

scanner is connected to the

proper host port.