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Epson LQ-1050 -- Printing Vertical Graphic Li
DocumentID: 644899
Revision Date: 29-Feb-96 8:19:01 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Symptoms: When printing Tables on the Epson LQ-1050, the vertical lines are printing wavy. This has also been reported with the Fujitsu DL2400 printer. Solutions: The printer does not accurately print bidirectionally. To help fix this problem, you can add a unidirectional code to the beginning of the graphics code and a bidirectional code to the end of the graphics transfer code. This will solve the problem with any Epson printer that is not printing vertical graphics lines properly. The steps are as follows:

1.      Enter the PTR program, retrieve the .PRS file (or .ALL file), and press Enter on the printer name.
2.      Highlight "Graphics" and press Enter.
3.      Highlight "Bitmap Graphics" and press Enter.
4.      Either "Monochrome Column Data Format" or "Monochrome Raster Data Format" will have an asterisk next to it. Highlight whichever category has the asterisk and press Enter.
5.      Highlight "Start Graphics Data Transfer" and press the right arrow key. Add the code [27]"U"[1]. This code turns on unidirectional printing.
6.      Move the cursor down to the line across from "End Graphics Data Transfer" and insert the code [27]"U"[0]. This will turn unidirectional printing off.
7.      Exit the PTR program, and save the file.

If these steps do not correct the problem, the following steps can also be used:

1.      Enter PTR Program, retrieve the .PRS file, and press Enter
2.      Move to Initialize and Reset and press Enter
3.      Move to the end of the string listed for Initialize at Start of Print Job and add [27]"U"[1]
4.      Move to Reset at End of Print Job and move to the end of the currect string and add [27]"U"[0].
5.      Exit and save

NOTE: This will make all printing unidirectional, and will slow printing down considerably. Another alternative is to enter <27>U<1> as a printer command before any graphics, and <27>U<0> after the graphic. This may be set up in a macro for the customer.

The printer should handle the graphics in bidirectional mode, but because of the speed involved this will not be a change made to the driver at this time. Since we are not receiving that many calls on this, or at least not that many STR's, we will simply continue to handle this on a case by case with fixes. The change does effect the speed of printing graphics considerably, so the change would probably result in more speed related calls than does the current inconsistency with lines. A change to the driver can be made if the numbers warrant it. It is a simple change, but overall, we think that we would end up with more problems than it would take care of.

Answer:

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