Epson Lq680 User Guide

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Changing Printer Settings From the Printer’s Control Panel      4-5
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Page length for tractor
This setting allows you to set the page length for continuous 
paper.
Skip over perforation
This feature is available only when continuous paper is selected. 
When you select On
, the printer provides a one-inch (25.4 mm) 
margin between the last line printed on one page and the first line...

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Print direction
You can select auto print direction (Auto
), bidirectional printing 
(Bi-D
), or unidirectional printing (Uni-D
). Printing is normally 
bidirectional for faster printing; however, unidirectional printing 
allows for precise vertical printing alignment, which is useful for 
printing graphics.
When...

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Changing Printer Settings From the Printer’s Control Panel      4-7
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I/F (interface) mode
The printer comes with a built-in parallel interface and an 
interface slot in which you can install one optional interface. For 
information on using an optional interface, see “Optional 
interface cards” on page A-19.
If your printer is connected to only one computer, select Parallel
 
or...

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Auto CR (carriage return)
This setting is available only in IBM 2390 Plus emulation mode. 
When auto carriage return is on, each line feed (LF) code or ESC 
J code is accompanied by a carriage return code. This moves the 
print position to the beginning of the next line. If the printer adds 
an extra line after...

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Manual feed wait time
This sets the amount of wait time between when paper is inserted 
into the paper guide and it is fed. If the paper feeds before you 
can adjust its position to your satisfaction, you can increase the 
wait time.
Buzzer (beeper)
The printer beeps when an error occurs. (See “Using the Error...

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1. Make sure paper is loaded and the printer is turned off.
 
c
Caution:
Whenever you turn off the printer, wait at least five seconds 
before turning it back on; otherwise you may damage the 
printer.
2. While holding down the Font
 button, turn on the printer. The 
printer enters the default-setting mode and...

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Chapter 5
Troubleshooting
Using the Error Indicators  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Problems and Solutions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Power supply problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Single-sheet paper loading or feeding problems . . . ....

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Using the Error Indicators 
You can identify many common printer problems using the lights 
on the control panel. If your printer stops working and one or 
more control panel lights are on or flashing or the printer beeps, 
use the following table to diagnose and fix the problem. If you 
can’t fix your problem using this table, go to the next section.
Panel...

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n = on, 
 
f = flashing
•••= short series of beeps (three beeps)
• • • • •= long series of beeps (five beeps)
Note:
The printer beeps once if you press a control panel button when the corresponding 
function is not available.
 
f Paper Out
 
n Pause•••
Continuous paper is not fed back to the 
standby position.
Tear off the printed document at the...

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Problems and Solutions 
Most printer problems are easy to solve. Use the information in 
this section to find the cause and solution to any printer problems 
that occur.
Determine what type of problem occurred, and see the 
appropriate page listed below:
Power supply problems. . . . . . . . . . . . . . . .  page 5-5
Single-sheet paper loading or 
feeding...