Communications problems – Zebra ZM400 User Manual

Page 117

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109

Troubleshooting

Communications Problems

3/27/07

ZM400/ZM600 User Guide

79695L-001 Rev. A

Communications Problems

Table 18

identifies problems with communications, the possible causes, and the recommended

solutions.

Table 18 • Communications Problems

Problem

Possible Cause

Recommended Solution

A label format was sent to
the printer but was not
recognized. The DATA
light does not flash.

The communication
parameters are incorrect.

Check the printer driver or software
communications settings (if applicable).

If you are using serial communication, check
the serial port setting in the control panel
menu. See

Set Serial Communications

on page 75

.

If you are using serial communication, make
sure you are using a null modem cable or a null
modem adapter.

Using the control panel controls, check the
protocol setting. It should be set to

NONE

. See

Set Protocol on page 77

.

If a driver is used, check the driver
communication settings for your connection.

A label format was sent to
the printer. Several labels
print, then the printer
skips, misplaces, misses, or
distorts the image on the
label.

The serial communication
settings are incorrect.

Ensure that the flow control settings match.

Check the communication cable length. See

Table 5 on page 19

for requirements.

Check the printer driver or software
communications settings (if applicable).

A label format was sent to
the printer but was not
recognized. The DATA
light flashes but no
printing occurs.

The prefix and delimiter
characters set in the printer
do not match the ones in the
label format.

Verify the prefix and delimiter characters. See

Set Format Prefix Character on page 78

and

Set Delimiter Character on page 79

for the

requirements.

Incorrect data is being sent
to the printer.

Check the communication settings on the
computer. Ensure that they match the printer
settings.

If the problem continues, check the label
format.

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