124 Troubleshooting Chapter 8Printing ProblemsIf you are having printing problems, check the problems and solutions inthe following table.Problem Cause SolutionData from computer is There may be a communica- Check the computer or theprinted, but is not what tion problem between the application to see if the hostyou expected printer and your computer. is configured correctly:printer port, printer driver,print manager.Cable connections may Check that your cablenot be secure. connections are secure.Interface cable may be Make sure your paralleltoo long. cable is less than 6.6 feet(2 m).Emulation switching may Turn off Automaticnot be functioning properly. emulation switching mode;see Chapter 9, Customizingthe Printer, for details.The printer driver may not Make sure you selected thebe correct. correct printer driver in yoursoftware.Printer control mode may Check that the printernot match the printer device. control mode (BJ or EpsonLQ) matches the printerdriver you selected.Previous software settings Check that the printer wasmay not be cleared. cleared of the previoussoftware settings before theprint job started.Printed characters do not Many graphics characters Set the correct Control modematch characters on the and special symbols are using the operator panel.screen produced by different ASCIIcodes according to the type Set the correct characterof printer and computer table using the printer’sbeing used. FUNCTION settings. Fordetails on character tablesand character sets, contactthe Canon fax retrievalsystem and request theBJC-70 Printer CommandSummary.
