Question about Samsung ML-2240 Laser Printer
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Posted on Jan 02, 2017
SOURCE: HP Deskjet 5150 - top cover open
I had the same problem, and the cause turned out to be the cover switch not being fully pushed in. On the underside right edge of the top cover, there's a little triangular protrusion that pushes down a black rectangular button (the cover switch) when the cover is closed. The problem occurs because the flimsy top cover is made of plastic and flexes slightly when you close it. This means that sometimes, the right edge of the cover won't seat properly even though it appears as if the cover is closed all the way. When this happens, the triangular protrusion isn't fully pressing the switch down.
To test if this is this is happening, send a print job to the printer and wait for the "top cover is open" error message to appear. Next, open the top cover door and locate the cover switch. It's a little black button in a rectangular hole at the right edge of the doorway near the ink cartridges. Take a pen or a car key and use it to push the cover switch down. You can also use your fingertip to do this if it's skinny enough. If you keep the cover switch pressed down, the power button should start blinking to indicate a print job is coming through. If the print job actually starts printing, then you know the problem was the cover switch.
In my case, all I had to do the fix the problem was close the cover and make sure it was fully seated by firmly pressing down the right edge of the cover until I heard a plasticky "click" noise. After that, the problem went away.
Hope this helps.
Posted on Sep 16, 2008
This is a "Sensor" issue, there is a sensor that detects when the Cover is closed, this is either faulty, not being activated, or being activated but not registering at the CPU. Sometimes it is an actual switch, others it is a hall effect sensor, optical, magnetic sensor or the like. Have a squiz and see if ya can see any sensor etc. maybe its blocked etc. Otherwise I think it's gonna have to go 4 repair.. If so get a firm "Quote" B4 allowing them to proceede.
Posted on Aug 01, 2007
SOURCE: SAMSUNG CLP 500
The order iin which you open and close two of the covers is important, as there is an interlock between two of them. This can (and does) get damaged.
The toner access door is the first one you open, THEN the top cover (the one that gives access to the Transfer Belt and Drum.
Make sure the Drum unit is properly pushed into the printer, and that the Transfer Belt is lacated properly AND the two locking levers fot the Transfer Belt are in their locked positions PROPERLY.
THEN close top cover - you shouldn't need to force it.
Followed by the Toner access door.
Yes check the duplex door too !
If this fails it is likely to be a broken case part, or failed sensor.
Posted on Jan 17, 2008
Front cover is on the right hand side, back is on the left hand side in the middle, and the top cover is like a little button on top. All the others are little openings.
Posted on Dec 02, 2008
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