Intermec 3400

HelvC
NugFont
Code39
Troubleshooting
4-7
4
Print Quality Problems (continued)
Symptom Possible Causes Solution
Print qualit
y
is
poor. (continued)
Media ma
y
be slippin
g
a
g
ainst
the platen roller causin
g
the
printing to compress.
Switch to approved media or clean the
printhead and platen roller as described in
Chapter 3, “Maintaining the Printer.”
The printer skips
labels randoml
y
or sends an
intermittent error.
The label format extends be
y
ond
the label length.
Edit the format to ensure that the text fits on the
label.
Continuous media
fault li
g
ht (
y
ellow
LED).
The label mark sensor is not in
the correct position.
Properl
y
position the label mark sensor. For
help, see “Ad
j
ustin
g
the Label Mark Sensor” in
Chapter 5.
Communication Problems and Preventing Data Loss
If your printer is not receiving downloaded data, try the solutions in the
accompanying table.
Symptom Possible Causes Solution
Printer does not
communicate
with the host.
Serial port is incorrectl
y
configured.
Make sure the printer’s serial port settin
g
s match
those of the host. Print a software test
confi
g
uration label as described in Chapter 1 to
check the serial port settings.
Damaged or incorrect I/O cable. Check the connections at both ends or replace the
cable. See Appendix C for cable information.
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.