Star Micronics LC-8521 user manual Troubleshooting guide, Problem Possible Cause

Troubleshooting guide 73

Troubleshooting guide

Use the following table to help track down the causes of problems and to determine the best solution to deal with them.

Problem	Possible Cause	Recommended Action
The ON LINE indicator does	The printer is not receiving	Check whether the power
not light.	power.	cord is correctly plugged into
		the power outlet.
		Check whether the power
		outlet is working by
		unplugging the printer and
		plugging in another device.
Printer sounds like it is	The ribbon is jammed,	Make sure that the ribbon
printing, but it is not.	twisted, or not set correctly	cassette is installed
	between the print head and	correctly.
Printing is weak.	the print head shield.
	The printer is not set up	Set up the printer for the
	correctly for the thickness of	paper thickness you are
	paper you are using.	using. See “Adjusting for
		paper thickness” on
		page 58.
	The ribbon is worn out or	Replace the ribbon with a
	“used up.”	new one.
Printer test works, but printer	The wrong emulation is	Check the emulation
will not print out data from	selected.	selection and change it if
the attached computer.		necessary. See page 31.
	Your application program’s	Check the printer selection
	or system software’s printer	of your application software.
	selection is wrong.
	The computer’s system	Check the system software
	software is not set up	settings. Check the settings
	properly for the printer or for	for LPT1, COM 1, or COM 2
	the port you are using.	if you are using the Serial
		Interface.