User guide Troubleshooting113Problems with the print qualityProblem Corrective actionPrint is too pale 1 The ribbon is used up or the ribbon cassette is not correctly fit-ted. Refer to the section Changing the ribbon cassette,(page 17).2 The printhead to platen gap is not correctly set, refer to the sec-tion Setting the print head gap, (page 45).3 For printers with the AGA = ON: Enter a correction value <0.See the section Setting the print head gap, (page 45).Smudged print 1 The ribbon is damaged (e.g. frayed). Change the ribbon as de-scribed in the section Changing the ribbon cassette, (page 17)2 The printhead gap is too small, increase the gap. See the sec-tion Setting the print head gap, (page 45).For printers with the AGA = ON: Enter a correction value >0(correction value 0 to +10). See the section Setting the printhead gap, (page 45).Prints undefined characters 1 Check that the interface plug is correctly connected to the com-puter and to the printer.2 Check that the proper emulation and the correct character set(country, CG table or character set) is selected in the Setupmenu.3 Check the length of the interface cable, see section Interfacespecifications, (page 127).4 Set CX-bid in the advanced menu to Off, see section Bidirec-tional parallel interface (CX-bid), (page 103).5 Check that the printer is properly adapted to the computer (con-figured). Refer to section The control panel, (page 29). Checkthe parameter set in the Setup menu under Settings for inter-faces (I/O), (page 67)and if necessary correct it.The first line is not completelyprinted out at the topCheck the function FormAdj. Refer to the section First printingposition (FormAdj), (page 82).Dots within characters aremissing1 Check whether the ribbon is damaged, if necessary replace it;see the section Changing the ribbon cassette, (page 17).2 Set the correct printhead gap.3 Check whether the platen is damaged.4 Check whether the printhead is damaged.Only use genuine ribbon cassettes. In case of points 3or 4, please contact your dealer.STOP
