
* Printhead pressure is incorrect.
* Ribbon installation is incorrect.
* Media installation is incorrect.
* Print density is incorrect.
* Media feeding is incorrect.
* Make sure the label guide touch the edge of the
media guide.
* Make sure label, paper core and ribbon are set
at the center of the spindle.
Gray line on the blank
label
* The printhaed is dirty.
* The platen roller is dirty.
* Clean the printhead.
* Clean the platen roller.
* The printer is in Hex Dump mode.
* The RS-232 setting is incorrect.
* Turn off and on the printer to skip the dump
mode.
* Re-set the Rs-232 setting.
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