Intermec EasyCoder 4420 User Manual page 55

Print Quality Problems (continued)
Symptom
Print quality is poor.
(continued)
The printer skips labels
randomly or sends an
intermittent error.
Label prints too close to
front or back edge of label.
Continuous media fault
light.
EasyCoder 4420 and 4440 Bar Code Label Printer User's Manual
Possible Causes
Uneven print contrast (density). The
printhead pressure may be set incorrectly
for the media width.
Poor quality label or ribbon stock.
Ribbon wrinkling. The printhead
pressure may be set incorrectly for the
media width.
Ribbon installed upside down.
You are using the wrong core-locking
bracket on the ribbon hub.
Direct thermal/thermal transfer switch set
in the wrong position.
You have exceeded the maximum
recommended print speed.
Media may be slipping against the platen
roller causing the printing to compress.
The label format extends beyond the label
length.
The label gap sensor is not in the correct
position.
The top of form position is not adjusted
properly.
The label mark sensor is not in the correct
position.
Chapter 4 — Troubleshooting the Printer
Solution
Adjust the bias adjust screw. See "Correcting
Uneven Print Quality" in Chapter 5.
Use only Intermec label and ribbon stock to
ensure superior print quality and product
performance.
Check to make sure that you installed the
ribbon correctly. For help, see "Loading
Thermal Transfer Ribbon" in Chapter 1.
Adjust the bias adjust screw. See "Correcting
Uneven Print Quality" in Chapter 5.
Make sure you installed the ribbon correctly.
For help, see "Loading Thermal Transfer
Ribbon" in Chapter 1.
Use the plastic core-locking brackets for
plastic core ribbons and the cardboard core-
locking brackets for cardboard core ribbons.
For help, see "Loading Thermal Transfer
Ribbon" in Chapter 1.
Set the switch for the type of media you are
using. For help, see "Loading Media Into the
Printer" in Chapter 1.
Reduce the print speed.
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 gap sensor. For
help, see "Adjusting the Label Gap Sensor"
in Chapter 5.
Use the top of form switch to adjust the top
of form position. For help, see "Fine-Tuning
the Top of Form Position" in Chapter 5.
Properly position the label mark sensor. For
help, see "Adjusting the Label Mark Sensor"
in Chapter 5.
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