Ribbon and media is loaded
incorrectly.
Dust or adhesive accumulation on
the print head.
Print density is not set properly.
Printhead element is damaged.
Ribbon and media are
incompatible.
Reload the supply.
Clean the print head.
Clean the platen roller.
Adjust the print density and print
speed.
Run printer self-test and check
the print head test pattern if there
is dot missing in the pattern.
Change proper ribbon or proper
label media.
The print head mechanism does
not latch the print head properly.
Label size is not specified
properly.
Sensor sensitivity is not set
properly.
The media sensor is covered
with dust.
Check if label size is setup
correctly.
Calibrate the sensor by Auto Gap
or Manual Gap options.
Clear the GAP/Black mark sensor
by blower.
The printing position of
small label is incorrect
Media sensor sensitivity is not
set properly.
Label size is incorrect.
The vertical offset setting in the
driver is incorrect.
Calibrate the sensor sensitivity
again.
Set the correct label size and gap
size.
If using the software BarTender,
please set the vertical offset in the
driver.
Missing printing on the
left or right side of label
Wrong label size setup.
Set the correct label size.
Ribbon installation is incorrect.
Media installation is incorrect.
Print density is incorrect.
Media feeding is incorrect.
Please set the suitable density to
have good print quality.
Make sure the label guide touch
the edge of the media guide.
Gray line on the blank
label
The print head is dirty.
The platen roller is dirty.
Clean the print head.
Clean the platen roller
The printer is in Hex Dump mode.
Turn off and on the printer to skip
the dump mode.