Tip & How-To about Office Equipment & Supplies

Document feeder malfunction model biz600/750/920

Reason:external light falling on on document size detecting sensors.

Quick solution:most probably ceiling light falling on the df sensors.
Move or shift the machine little away from the ceiling light.

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I have a Defiant motion sensor light, model DF 5416 BK A...How do I get it to turn on when only motion is detected?


Try Googling (defiant)(DF 5416 BK A)(manual) without parens to get instructions.

May 04, 2017 | Get Home Security

1 Answer

I want to replace a ceiling light fixture with a ceiling fan/light combo. the existing fixture is about 32 inches from a wall. what size fan can I put there?


I have replaced a couple ceiling light fixtures with ceiling fan/light combos in bedrooms where the light was basically in the center of the room. This was fairly straight forward and for me required replacing the electrical box that the light fixture was using with a heavier duty fan mounting box which you should make sure you use (that way the fan/light combo won't fall on your head later on -- literally). As far as the size of fan you can put there depends on whether the fan mounting electrical box can be mounted in the "exact" position of your original ceiling light fixture. I say this because the new box MUST be anchored to the ceiling joist structure in some way as a ceiling fan (usually) weighs more than a light fixture and tends to vibrate lending to more stress on the electrical box it's mounted to. Have someone who is an electrician or at the very least has a clear understanding of the importance of proper electrical work do the work or at least clearly explain what you need in your specific situation.

It is generally accepted that you should have at least 18" of space between a wall and the tip of your fan blade. In order to do this with the 32" figure you gave, ideally you should have a (32" - 18") x 2 = 28" fan. A fan in the 28" to 30" range is probably about as big as you should go in this area. You could technically place a 60" fan in that location and leave only about 2" of space between the fan blade and the wall, but that's asking for trouble and should NOT be done in my opinion. The smaller the fan, the less air you will be able to move, therefore you need to balance size, air flow requirements, and the restrictions of your particular location with what you can put there.

Do a quick internet search on "what size ceiling fan do I need" for more information on this topic.

May 26, 2014 | Computers & Internet

2 Answers

Paper is getting jammed in the document feeder


This problem occur due the DF is not detecting the Orginal size.
Check the Size detection sensor,located when u open the ADF cover u can see, Clean the sensor by blowing.

Aug 12, 2009 | Gestetner - DSm675sp Digital Imaging...

2 Answers

canon pc980 dF error


Page 62 of PS980 manual shows how to get rid of the dF error, and it worked for me just now. If you can't see any paper causing a jam, there could be a small piece of paper above the white feeding belt. 1) turn off copier, lift lid, and gently pull the feeding belt. If nothing falls out and you still get the error, 2) insert a postcard to the left of the feeding belt and wiggle vertically and horizontally. To my surprise, a small piece of paper I had copied and forgotten about emerged on top of the copier lid!

May 08, 2008 | Canon PC-980 Color Copier

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