Communication Problems And Preventing Data Loss - Intermec 3400 User Manual

Print Quality Problems (continued)
Symptom Possible Causes
Print quality is Media may be slipping against
poor. (continued) the platen roller causing the
printing to compress.
The printer skips The label format extends beyond
labels randomly the label length.
or sends an
intermittent error.
Continuous media The label mark sensor is not in
fault light (yellow the correct position.
LED).

Communication Problems and Preventing Data Loss

If your printer is not receiving downloaded data, try the solutions in the
accompanying table.
Symptom Possible Causes
Printer does not Serial port is incorrectly
communicate configured.
with the host.
Damaged or incorrect I/O cable.
Several problems can cause data loss or communication problems on the
printer. Data loss can result in printing errors or missing field data.
Your printer is a serial ASCII device. It communicates with the host through an
ASCII serial communication I/O port. Hardware handshaking involves the use
of a hardware wire. Software handshaking involves a two-way datalink
between the devices. The two devices communicate with each other without
losing data through the use of handshaking. The printer sends both forms of
handshaking simultaneously when the printer's input buffer is full. Any loss of
data can cause printing errors.
NugFont
HelvC
Solution
Switch to approved media or clean the
printhead and platen roller as described in
Chapter 3, "Maintaining the Printer."
Edit the format to ensure that the text fits on the
label.
Properly position the label mark sensor. For
help, see "Adjusting the Label Mark Sensor" in
Chapter 5.
Solution
Make sure the printer's serial port settings match
those of the host. Print a software test
configuration label as described in Chapter 1 to
check the serial port settings.
Check the connections at both ends or replace the
cable. See Appendix C for cable information.
C o d e 39
Troubleshooting
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