Question about Sharp AL 1631 Copier

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Sharp AL-1631 misfeed light will not go out.

We have checked and rechecked. There is not even a bit of paper to be found. Where are the "sensors" and how do you reset them?

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Not familiar with this particular model but I can tell you that every flag that the paper goes past has another flag at the other end of it's stem that blocks and unblocks a photoelectric sensor, these get clogged with paper dust which can be removed with a can of air. Just have a rag handy to block the dust and toner. You should also remove your developer tank and drum cartridge before you start spraying around (cover the drum or keep it out of the light). Take out your paper trays and make sure that there's no paper wedged behind it so that the motor cannot get turn it. Get a flashlight in the tight areas of the paper path and look for torn little bits. Mabye your rollers are dirty and need a cleaning with soap and water. It should be said that if you do not know how to do any of this without scratching your drum or spilling toner or developer, to just leave it alone and call for a service tech!!

Posted on Jul 09, 2009

  • unkl foddy Jul 09, 2009

    PS when you remove the drum cartridge keep it upright, don't turn it so the drum faces up, you may get waste toner dropped onto your charge sawtooth grid which will in turn put obnoxious thin lines all across your copies.

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Sensors are pretty much hidden and can't be accessed without taking the machine apart. You need someone trained on them to get to them.

Posted on Jul 03, 2009

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1 Answer

We can not clear the paper jam error. We have cleared the paper jam, turned the unit on and off, unplugged the unit, moved all the rollers, can not see any pieces of paper that are still in the misfeed but...


This copier has 4 sensor
1. paper sensor
It is called paper sensor its installed paper tray
2.Drawer sensor
3. Drive sensor its installed middle position
4. Exit sensor it is in fuser unite.
May be any sensor displace or broken.So you should check it.
Good luck.

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There is a paper misfeed so check for a jammed paper inside the copier.

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Oct 03, 2009 | Sharp AL 1631 Copier

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We have a sharp AL1631 copier and the misfeed paper light will not go out even though we have removed all the paper that was jammed. We have read that perhaps a sensor flag has been disturbed, but we do...


there is proberly an sensort that has not been reset or a smalll bit of paper still in copier start from the begining off the process and pull the paper tray out and check to see if the papaer is set properly in the tray then follow the path through the copier to teh drum section and check the sensor arms are all free to move then to the fuser (HOt Section) make sure there are no small pieces left inside the path of the paper open all doors and check they close properly.. if you have checked all this correctly the light shoul go out on reset and you will be fine if not there is sensor not moving freely and yuo need to check again..Good Luck A

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1 Answer

Sharp al-1631 misfeed light will not go out


This usually happens when a sensor that detected a paper jam has not reset itself after removing the paper. Make sure that when the jam was removed - all the paper came out and there is/was not a small piece missing that could have been left behind in the copier and is hiding somewhere. If you are sure the paper has all been removed then what could have happened is when the jam was being removed it could have caught on one of the paper sensors. This could pull the little flag that activates the sensor out of place - giving a false paper jam message. there are only a handfull of sensors in the paper path. remove the paper tray and make sure there is no paper stuck behind the tray or in the cavity where the tray goes. look and follow very closely the path the paper takes - look for any sensors/flags the paper would avtivate and make sure the flag moves freely and is not lopsided.
Make sure you also try unplugging and replugging the copier from the wall.
Hope this helps

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1 Answer

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Dear sir;I suggest you go to simulation mode 30 & 40 to find out which sensor got problem procedure as follow;
1, press "program", "interupt" "clear", "interupt"
2, enter 30, press "start", enter 01, pres start again,then all the sensor light in the paper path are on the abnormal one blinking.
3, repeat same step for 30 sub 02 that's for paper path in the feed section.
4, repeat same step for simulation 40 sub code 01,that's for by-pass paper path sensor.
After you done those procedure you will find out which sensor block out or defect, good luck.
HAVE A HAPPY HOLIDAY !!!

Dec 11, 2008 | Sharp AL 1631 Copier

1 Answer

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open right door and look on top there should be a littl lever there check carefully to see if there is a paper crumbled inside.
remove tray and look where paper feeds out.

Nov 19, 2007 | Sharp AL 1631 Copier

1 Answer

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hi im jules_09 if the misfed sensor is on there is no process that can restart,the light togo off.once again check which sensor is on,there are 3 misfed sensor in the machine 1st is in the bypass tray area the 2nd in inside the machine itself  the 3rd is at the fusing check which sensor is on better yet shieck all sensor,there just a piece of paper or something stock in thoose sensors

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1 Answer

Sharp al-1631


there is some paper path sensor in your machine first you should check the area where misfeed light is coming then check the sensor of that area

Sep 28, 2007 | Sharp AL 1631 Copier

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