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From VGA Source to Printer in One Click

October 31, 2008 by Victor · Leave a Comment 

Do you need to print handouts or create hard paper copies directly from your presentation projector, PC, electronic microscope, navigation system, or any other VGA source? Even it today’s digital age, paper copies provide not only and easy way to distribute something (amongst a classroom, for example) but are also much more secure, and often cheaper, than any digital storage medium. For that reason, paper is still the primary method of archiving information in most parts of the world.

So what exactly do you need to print VGA to paper? There are several alternatives to be looked at. The cheapest, and least reliable, is using a simple VGA frame grabber coupled with a PC and a printer. This is a great alternative for those that already have a computer that is connected to a printer that they can use.

As shown in the diagram above, the VGA source is connected to the frame grabber which is tethered to the PC either through an internal PCI slot or external USB connection. A printer is connected to the computer. This can be a USB, parallel, wireless, or even a network printer. In order to perform the printing action, the user must navigate to the print function in the frame grabber’s software. Before buying a frame grabber, one must make sure that its software has full support for printing.

Since printing to paper does not require high frame rates, pretty much any frame grabber will be able to handle the task at hand. The most cost efficient one, at just under $300, is the Epiphan Systems VGA2USB. While it is not as advanced as the VGA2USB LR that we reviewed, the VGA2USB uses the same software as the VGA2USB LR, meaning that it fully supports printing. Please refer to our frame grabber specification table for complete specifications on the most common VGA and DVI frame grabbers manufactured to date.

 

Using a Dedicated Device

Imagine you are conducting a presentation and you need to give paper printouts to your audience of something they see on the screen. Suddenly, your computer freezes up and you are no longer able to produce the needed handouts.

For applications where printing from a VGA source is critical, a stand-alone device is much more reliable and easier to use than the setup described above. One such device is the Epiphan Systems VGA Printer.

The diagram above, taken from Epiphan Systems’ webpage, explains how a the VGA Printer works. Basically, the small VGA Printer replaces the frame grabber and PC entirely. The VGA-in of the VGA printer is connected to the equipment with the VGA output, while the USB or Ethernet is connected to a printer or network printer. The user then has a small control unit which controls when and how many printouts are to be made.

 

Final Thoughts

If you have any VGA source, whether it be a PC, a server, navigation equipment, or a projector, creating paper copies is easy with the use of frame grabbers or stand-alone dedicated devices. For those on a budget or those that don’t need to print often, the first “frame grabber” method of VGA printing costs only $300 for the frame grabber.

Those that depend on printing from VGA for critical tasks should prepare to shell out $1500 for the VGA Printer, as it is the only stable and reliable solution to converting a VGA video feed into physical paper.

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