User guide Troubleshooting111Problems 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 Inserting the ribbon cassette(page 10).2 The print head to platen gap is not correctly set, refer to the sec-tion Setting the print head gap (page 43).3 For printers with the AGA = ON: Enter a correction value <0.See the section Setting the print head gap (page 43).Smudged print 1 The ribbon is damaged (e.g. frayed). Change the ribbon as de-scribed in the section Inserting the ribbon cassette (page 10).2 The print head gap is too small, increase the gap. See the sec-tion Setting the print head gap (page 43).3 For printers with AGA = ON: Enter a correction value >0 (cor-rection value 0 to +10). See the section Setting the print headgap (page 43).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 123).4 Set CX-bid in the advanced menu to Off, see sectionBidirectional parallel interface (CX-bid) (page 80).5 Check that the printer is properly adapted to the computer (con-figured). Refer to section The control panel (page 26). Checkthe parameter set in the Setup menu under Settings for inter-faces (I/O) (page 57)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 69).Dots within characters aremissing1 Check whether the ribbon is damaged, if necessary replace it.See the section Inserting the ribbon cassette (page 10).2 Set the correct print head gap.3 Check whether the platen is damaged.4 Check whether the print head is damaged.We recommend to use genuine ribbon cassettes only. Incase of points 3 or 4, please contact your dealer.
