Metrologic Instruments MS1890 User Manual download pdf (Page 23)

19

T

ROUBLESHOOTING

G

UIDE

Symptoms Possible Causes Solution

The unit powers

up, but does not

beep when bar

code is scanned.

The beeper is

disabled and no tone

is selected.

Enable the beeper and select a

tone.

The unit powers

up, but does not

scan and/or

beep.

The bar code

symbology trying to

be scanned is not

enabled.

UPC/EAN, Code 39, interleaved 2

of 5, Code 93, Code 128, Codabar

and PDF 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 is trying

to scan a barcode that

does not match the

configured criteria.

Verify that the bar code being

scanned falls into the configured

criteria (i.e. character length lock or

minimum bar code length settings).

The unit scans

a bar code, but

locks up after

the first scan

and the white

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, or

XON/XOFF, 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.

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