Q85984: Epson LQ-950 Prints Jagged Characters or Vertical Lines

Article: Q85984
Product(s): Microsoft Windows 95.x Retail Product
Version(s): WINDOWS:3.1,3.11
Operating System(s): 
Keyword(s): 
Last Modified: 08-DEC-1999

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The information in this article applies to:

- Microsoft Windows versions 3.1, 3.11 
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SYMPTOMS
========

When you print from Microsoft Windows 3.1 to an Epson LQ-950, jagged vertical
lines or characters may result.

CAUSE
=====

This problem may be caused by the bidirectional printing option within the Epson
LQ-950 printer.

RESOLUTION
==========

On the motherboard of the Epson LQ-950 printer, there are two banks of switches.
To correct this problem, on bank 1, turn switch 5 to "On" to set the printer to
unidirectional mode instead of bidirectional mode.

MORE INFORMATION
================

The jagged lines and character problem usually occurs with specific characters
or vertical lines within the document, not randomly. The problem is in the way
the LQ-950 interfaces with different drivers used to emulate it, such as the
Epson LQ-2500 or LQ-2550. It will print these graphics in a bidirectional
pattern, that is, it is approaching the area from a different direction every
other time. This creates the appearance of a jagged edge because graphical
characters are printed out of alignment.


Additional query words: 3rdparty 3.10 Setup Mode Directional 3.11

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Keywords          :  
Technology        : kbWin3xSearch kbZNotKeyword3 kbWin310 kbWin311
Version           : WINDOWS:3.1,3.11

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