Monday, December 5, 2011

Have You Cleaned Your Filter This Week?

Image clipped from
Using all these gadget-y things in the classroom is fun and it helps kids learn, but ed tech also requires some basic standard maintenance, too.

Please help prolong the life of the projectors associated with SMART Boards by cleaning the projector frequently and regularly. Once each week is a good rule of thumb.

Within the District, I send a weekly email update every Tuesday. When that message shows up in your inbox, consider that your reminder to clean out the filter on the projector. 

Here's how to clean the filter each week:
  1. Turn the projector off. Unplugging it wouldn't hurt, either.
  2. Stand on a step-stool or ladder. Avoid standing on a chair or desk, etc. Ask your custodian for assistance as needed.
  3. Locate the filter. As you are looking into the big fish-eye lens, you'll see a small black plastic part just to the side. That's the filter. (It's circled in red in the image above.
  4. Remove the Filter. Grab the black plastic filter with your thumb and index finger and pull it straight out toward the SMART Board.
  5. Gently shake or blow the dust off the filter. You might want to do that over a trash can.
  6. Reinsert the filter. It only fits one way - the same way you took it out. Don't force it.  You can wash it off, too, but don't scrub it... If the foam material is torn, the filter is useless.
  7. Examine  the projector for dust buildup. If you see a lot of dust & debris built up, especially around the cooling vents, gently brush it away from the projector (never in towards it).
NEVER RUN THE PROJECTOR WITHOUT A CLEAN FILTER PROPERLY INSTALLED! You wouldn't run your car's engine without an oil filter, would you? Let's hope not.

NEVER USE COMPRESSED OR "CANNED" AIR TO CLEAN THE SURFACE OR COOLING VENTS OF THE PROJECTOR! This will only force surface dirt & other crud DEEPER into the projector. And that's not good.

If you notice a lot of dirt built up in and around the cooling vents, if the image seems to be getting dimmer, or if your projector starts "making noise," it probably needs professional attention. Submit a Tech Help Request from your classroom computer... quickly...  to have someone from the Tech Department drop by and check it over for you.

And remember, each week when you get my Tech & PD Update, ask yourself...
"Did I clean my filter this week?"

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