Print Troubleshooting - Citizen CLP-6401 User Manual

4.5 Print Troubleshooting

Problem
Printing doesn't
start.
Missing lines.
Dropouts.
Print is too light or
dark.
Other printing
abnormalities
･ Power to the printer is off.
･ Printer is not properly
connected to computer.
･ Printer setting is not
correct.
･ Print head connector
connection failure.
･ Print head is dirty.
･ Platen is dirty.
･ Ink ribbon and paper are
not the recommended
type.
･ Paper quality doesn't
match the print head
offset.
･ Paper width doesn't
match the print head
pressure.
･ Printer setup mode is not
correct.
･ Setting of printing energy
level is not correct.
･ Check the error message on the control panel and correct it
according to the descriptions on Section 2) Errors and corrective
actions, 4.1 Error Messages.
Cause and remedy
®
Turn the power switch to ON.
If power still doesn't turn on,
follow steps in Section 4.2
Power Troubleshooting.
®
Turn the power switch to OFF and
connect it properly.
®
Correct the printer setting.
®
If the print head connector is not
properly connected, insert it
correctly.
®
Check the print head
heat-generation body for dirt. If
it's dirty, wipe the surface of the
print head heat-generation body
with a soft cloth soaked in
ethylalcohol etc.
®
Remove dirt or label or tape
scraps stuck to the platen.
Note: If those can't be removed,
contact our service personnel for
maintenance.
®
Change to the recommended
type after checking the ink
ribbon and paper maker and
identification number.
®
Adjust the offset. See Section
3.6 Print Head Offset
Adjustments.
®
Adjust the print head pressure.
See Section 3.7 Print Head
Pressure Adjustments.
®
Check whether the setting mode
is for direct-thermal or
thermal-transfer printing and if it is
not, change it as necessary.
®
Check the setting value of printing
energy level and adjust it as
necessary.
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