Need a projector that works from the BACK of the classroom

Thank you for telling us. For practical help, however, you need to contact either the original vendor or the manufacturer.

An image is produced in these projectors by passing color through three different LCD panels. One is a Red, one a blue, and the last one a purple. It sounds like the green panel is damaged. The only way to tell is to take it to an Epson authorized service center.

First suggestion is checking to make sure that the tray/chains are secure - that it's not going to fail at at a point of connection either at the ceiling or point where the chains fasten to the tray. The tray must be strong enough for the weight of the projector (most InFocus classroom projectors are not that bulky and heavy).
Hanging anything with weight from the suspension ceiling braces is not recommended. If possible, having the wire/chain continue thru the ceiling panel (a small inconspicuous hole can be made through the panel) up to actual ceiling joists or whatever material the ceiling system itself is fastened to is best & the most secure. I've used steel aircraft cable (available at any Home Depot or hardware store) in place of chain, partly because it only requires a small pencil-sized hole thru the ceiling panel, hardly noticeable.

Most hanging fixtures (theatrical lights, projectors, etc.) have a secondary/backup safety cable or strap system should the main fasteners fail. In this case, if the tray and ceiling connection is secure, a safety strap holding the projector onto the tray so it's not sitting up there loose or able to be knocked out at all should be used. This also will help keep the projector's aim aligned to your screen should something bump the tray, you won't have to readjust it. (See this link attached for an example of a strap securing a projector).
(In all cases, if you have a building or school district maintenance administrator or someone who's job description requires them to be aware of state or district safety regulations/OHSA rules, they should be consulted to make sure you're following any safety issues that may apply specific to your classroom/student needs.)

I'm a techie with a school district and have the same problem. My suspicion is it's a lamp issue, though the teacher using it says there was no low hours warning. Unfortunately I don't have a spare to try out so if anyone can state categorically that it IS the bulb then I will purchase one.

Hi please follow these steps:In a world of PowerPoint presentations and the latest digital downloads, the overhead projector may seem obsolete. The fact of its continuous use in schools and colleges across the nation shows the perseverance of this classroom essential. But, when it breaks down...then what? Look below for a few tips on how to repair an overhead projector.

Ensure the wire is not loose from the plug by tugging gently on the cord. Cover any exposed or frayed wires with electrical tape, get a new wire and plug if there is significant damage.

Step 3Remove the top of the projector and compare the wiring with the diagram in the projector's manual. Check all the wires are connected as listed and none are missing. If you don't have the original manual use the model number located on the back label to get a replacement online.

The temperature in the classroom is to hot. Turn down the
temperature in the classroom or get a small fan and place it near the
projector. The projector is running at border line and just needs a few
degrees of cooling...

Are you a UK school district? the thermal trip has been a problem on sevral makes of projectors including Sanyo, your problem now may be lamps what hrs do you have on the lamps?

Marc Engineer

I had one with the same issue. After checking and rechecking the projector, I found that there was a lose conection between the CPU and the RGB output connection. It's really touchy.

I had the same problem, the first couple of replacement bulbs i ordered worked fine but the last 3 i got, 2 of them have been faulty, i just sent them back and they replaced them. If its too late to send the bulb back you can go to the settings on projector, select lampsaver setting, its probably set at off, turn it on. Your bulb will be a little dimmer in this setting but shoud let the projector run ok.