Troubleshooting guide – Star Micronics LC-1021 User Manual
Page 58
 
52 Optional Accessories
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 
not light.
The printer is not receiving 
power.
Check whether the 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 
printing, but it is not.
Printing is weak.
The ribbon is jammed, 
twisted, or not set correctly 
between the print head and 
the print head shield.
Make sure that the ribbon 
cassette is installed 
correctly.
The printer is not set up 
correctly for the thickness of 
paper you are using.
Set up the printer for the 
paper thickness you are 
using. See “Adjusting for 
paper thickness” on 
page 42.
The ribbon is worn out or 
“used up.”
Replace the ribbon with a 
new one.
Printer test works, but printer 
will not print out data from 
the attached computer.
Your application program’s 
or system software’s printer 
selection is wrong.
Check the printer selection 
of your application software. 
The computer’s system 
software is not set up 
properly for the printer or for 
the port you are using.
Check the system software 
settings. Check the settings 
for LPT1, COM 1, or COM 2 
if you are using the optional 
serial interface unit.
The interface cable is 
connected incorrectly or 
damaged.
Check to make sure that the 
printer interface cable is 
connected correctly. If it is, 
try a different cable.