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Duplex Printing - LaserMaster LX6 800 DPI
DocumentID: 600471
Revision Date: 29-Feb-96 1:28:25 PM

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

Problem

Symptoms: The customer has the LaserMaster 800 DPI with 6M of memory on the board. When the customer uses his HP LaserJet IID with the LaserMaster LX6 600 DPI driver for duplex forms, an 8.5" x 11" page is reduced by approximately two thirds. When his 800 dpi driver is selected, as suggested in memo P51_1839B, the document prints in simplex instead of duplex. Can you print a duplex page that is not reduced? Solutions: There are four different 800 DPI boards. They are distinguished by the memory they have. There is a 2M, 4M, 6M, and 8M board. The 2M board is unable to print duplex.

To find out how much memory is on a board, run LXLOAD from the DOS prompt. This will usually be found in the C:\LM\UTILS\ directory. All LM boards can be run in only 2 modes, TurboRes and LowRes. The 800 DPI board has two TurboRes Modes, 800 DPI and 600 DPI. This means you must tell LM what you want selected for your device, and make sure that the same DPI printer driver is used in WP. If you have your LM board configured at 800 DPI, then you can only print duplex using the 300 DPI printer driver. The following paragraph explains why you would use the 300 DPI driver:

If the LM Board is configured at 800 DPI, then it is in Turbo Res mode. In order to duplex, LM must have enough memory to image two pages on the LM card's memory. At 800 DPI this is impossible if you are using full page graphics. So to be on the safe side, when LM receives a duplex command, it switches to 300 DPI (LowRes). If you are using a 800 DPI driver, spacing at 1/800ths, and the printer has switched to moving in 1/300ths, you can see that spacing is going to be incorrect.

If the card is set for TurboRes at 600 DPI, and a duplex command is received, it does not switch to LowRes. There is enough memory available to image both pages without any problems. So in this case, you could continue to use the 600 dpi printer driver.

The TurboRes DPI is selected by going into SETUP from the C:\LM\UTILS\ directory. If you only want to check its current mode, use TYPE C:\LM\CONFIG.LM. The "Device=" line will give the current resolution. If you are able to use SETUP to change the DPI device to 600 DPI, then you can use the 600 DPI printer driver to duplex.

If the customer is getting incorrect spacing when trying to duplex with the 600 DPI driver, then it is because he is currently running his TurboRes at 800 DPI. He must use the 300 DPI printer driver.

Answer:

Details:


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