Question about Samsung SCX 4521F All-In-One Laser Printer

1 Answer

Front and rear cover open but all covers are closed

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  • 360 Answers

Hello check again properly.i think front cover is open
if you replace toner and didnt close front cover properly or you open it and didnt close properly.

Posted on Sep 09, 2010

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Posted on Jan 02, 2017

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SOURCE: Error: "Back cover is open. Close back cover."

We had this problem. It turned out there was actually a piece of paper stuck in the printer! It wasn't so easy to see it from the rear.

We removed the paper from the front by taking out the ink cartridge first. Turned the printer back on and everything was fine.


Posted on Apr 06, 2009

Soulvisitor
  • 1113 Answers

SOURCE: doc cover open

Yes there is and I know your problem have a look at the left hinge on lid that you lift to put down an original for copying, it will be breaking apart, the switch is black in that same corner on doc feeder base, as the hinge breaks apart the doc feed lifts in that corner causing "doc cover open" cause that switch no longer gets pushed in when lid is shut

Dodgy repair - tape switch closed, but doc feeder will not work properly/can use glass.

Repair - Easy removal of three screws and replacing 20buck hinge bought from brother dealer...part no.LE8731001 Hinge assy left.

Now that's FIXYA!

Posted on Nov 19, 2007

  • 1 Answer

SOURCE: Brother DCP 7020 error 'back cover open close

Thank you Daniel - it worked for me!
I just spoke with a Brother Customer Service Rep. and he did not mention this potential fix. He ended up recommending a local service center, but suggested that it might be less expensive to purchase a new pinter instead.

Note to others: the tiny perpendicular appendage is on the (this thin black plastic)flap that you pull down to expose the orange roller. There was a separate black piece on the flap that was slightly bent & "jossled out of the slot" as Daniel mentions.

I hope this works for you as Daniel's advice above just saved me about $170 on a new printer - Thank you!

Posted on Apr 28, 2010

  • 1 Answer

SOURCE: Canon MX860 Rear Paper Jam

I have a small piece of paper jammed in my Canon MX-860 that Cannot be seen from anywhere. Can you help me find so I can clear it

Posted on Sep 14, 2011

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1 Answer

Front or vrear cover open


there are 2 switches regarding this error message " front and rear cover open." so pls. check with the front door right side portion. you can see a small leaver there, pls. check that liver correctly go inside the cover after we close the front door.
other switch at the back door paper exit area. pls. check the door closed properly nor not ? that door control a switch liver attached with the fuser unit.
first switch in the HVPS board and second switch at SMPS.
kindly check it and revert back.

May 05, 2014 | Samsung SCX 4521F All-In-One Laser Printer

Tip

Main Error MINOLTA DI 1611, DI 2011 Messages and Their Remedies


PAPER JAM A paper misfeed occurred in the
main unit.
Open the cover at the indicated
location, and then remove the
misfed paper. (“When the Message
(Flashing alternately)
OPEN XXX SIDE COVER
All misfed paper was not removed
from the main unit.
Check the message in the display
for the location of the paper misfeed,
and then remove the misfed paper.
ORIGINAL DOC.JAM A paper misfeed occurred in the
Document Feeder.
All misfed paper was not removed
from the Automatic Document
Feeder.
Open the Document Feeder Cover
and the Document Feeder, and then
remove the misfed paper.
(Flashing alternately)
OPEN DOC.FEED COVER
∗REMOVE PAPER IN
BYPASS TRAY∗
Paper is loaded in the Manual
Bypass.
Remove the paper from the Manual
Bypass.
FRONT COVER OPEN The Front Cover of the main unit is
open or not securely closed.
Securely close the Front Cover.
(Flashing alternately)
CLOSE FRONT COVER
DUPLEX COVER OPEN The Duplex Unit Cover is open or
not securely closed.
Securely close the Duplex Unit
Cover.
(Flashing alternately)
CLOSE DUPLEX COVER
DOCUMENT COVER
OPEN
The Document Feeder is lifted up
(while a document is loaded into
it).
Securely close the Document
Feeder.
(Flashing alternately)
CLOSE DOCUMENT
COVER
DOC.FEED COVER OPEN The Document Feeder Cover is
open.
Securely close the Document
Feeder Cover.
(Flashing alternately)
CLOSE DOC.FEED
COVER
TONER EMPTY The toner is empty. Copying and
printing cannot be performed.
Replace the toner bottle with a new
one.
SUPPLY TONER
PAPER EMPTY The selected paper tray has run
out of paper.
indicates the paper tray, and
“XXX” indicates the paper size.
Load paper of the specified size into
the specified paper tray.

on Dec 18, 2009 | Office Equipment & Supplies

1 Answer

Unable to print 70


  1. Open the Outer Back(Rear) Cover (1) at the back of the machine. Pull the jammed paper out of the machine.

    jam03.gifjam04.gif
  2. Close the Inner Back(Rear) Cover (1) if it is open as shown in the illustration.

    jam06.gif
  3. Close the Outer Back(Rear) Cover. Make sure the cover is closed properly.
    jam07.gif
  4. Pull the paper trays (1) out of the machine.

    jam01.gif
  5. Push the two green levers up on both sides.

    greenlever.gif
  6. Pull out the jammed paper (1) and press Stop/Exit.

    jam02.gif
  7. Push the green duplex unit up.

    greenduplex.gif
  8. Reset the machine by lifting the scanner cover from the front of the machine and then closing it.
    If you cannot remove the jammed paper from the front of the machine, or the error message still appears on the LCD after you have removed the jammed paper, please go to the next step.

  9. Using both hands, use the plastic tabs on both sides of the machine to lift the Scanner Cover (1) into the open position. Make sure that there is no jammed paper left in the corners of the machine under the plastic covers.
    jam08.gif

    Note
    • If ink gets on your skin or clothing immediately wash it off with soap or detergent.

    • If the paper is jammed under the print head, unplug the machine from the power source, and then move the print head to take out the paper.

    • If the print head has stopped in the right corner as shown in the illustration, you cannot move the print head. Press Stop/Exit until the print head moves to the middle. Then unplug the machine from the power source, and take out the paper.

    jam09.gif
    1. Gently close the scanner cover using the finger holds on both sides of it as you push down on the Scanner Cover Support (1).
      jam096.gif
    Caution Be careful not to trap your fingers under the scanner cover. Always use the finger holds provided on both sides of the scanner cover when opening and closing it.

    1. Push paper tray #1 and paper tray #2 firmly back into the machine.

    Note Make sure you pull out the paper support until it clicks.

    jam11.gif

Nov 11, 2011 | Brother MFC-6890CDW Printer

1 Answer

My Dell MFP 1815dn has a paper Jam 2. I removed the toner cartridge and pulled the paper out, before I realized that I needed to open the back. I believe I thought I got the paper out, but the printer is...


After a paper jam occurs in the rear cover of a Dell Laser Multi-Function Printer 1815N, the printer will not resume when the jammed paper is removed. This is the normal behavior of the printer as there is no sensor on the rear cover of this printer.

To open the back cover and remove any stuck paper, perform the following steps:
  1. Open and close the front cover.
    The jammed paper may automatically exit the printer. If the paper does not exit, go to the next step.
  2. Gently pull the paper out of the output tray.
  3. If you cannot see the paper in the output tray or the paper does not move when pulled, open the rear cover.
  4. Skip to step 9. If you do not see the paper, go to the next step.If you see the jammed paper, push the two blue pressure levers up and remove the paper.
  5. Release the blue strap, the rear cover stopper, and fully open the rear cover.
  6. Unfold the duplex guide fully.
  7. While pushing the fuser lever to the right, open the fuser door. NOTICE: Make sure to unfold the duplex guide before opening the fuser door, or the fuser door may be damaged.
  8. Pull the jammed paper out.
  9. Return the levers, fuser door, rear cover stopper, and duplex guide to their original position.
  10. Close the rear cover.
  11. Open and close the front cover.
    Printing automatically resumes.

Jun 24, 2011 | Dell 1815dn All-In-One Laser Printer

1 Answer

Brothers Printer MFC 7420 Error Message "Back Door Open" I opened it and closed it several times still getting message. I unpluged it andtried again. Help


Hi. You have to follow these steps: Be very careful:

1. Open front cover, like in this image:
hiddenul_0.gif

2. Pull out your printer's toner cartridge & drum unit:
hiddenul_1.gif

3. Open back cover
hiddenul_2.gif

4. Pull the tab which is in front of you in order to open the rear chute cover.
hiddenul_3.gif

5. If there is any, pull the jammed paper out of the fuser.
hiddenul_4.gif



6. Close back cover and put the cartridge toner & drum unit back where it belongs.
hiddenul_5.gif

7. Close front cover too and see if it works! If your error will still appear, try powering your printer OFF & ON

I hope I helped you!

May 20, 2011 | Office Equipment & Supplies

1 Answer

Lcd shows "Front or Rear" (Cover Open). What is


There is probably a broken sensor on your printer. Try to open and close the cover some times it works.

Mar 01, 2011 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

I have a paper jam with a samsung CLX 3175FN. Can't get the stuck paper out! Turning on and off didn't work.


If the paper is jammed inside the machine follow these steps:
1. Open the front cover and pull the toner cartridge out, lightly pushing it down.
2. Remove the jammed paper by gently pulling it straight out.
3. After removing the jammed paper, make sure there is no additional paper in the paper path.
4. Insert the toner cartridge and close the front cover.

If the paper is jammed in exit are follow these steps:
1. Open and close the front cover. The jammed paper is automatically ejected from the machine.
2. Gently pull the paper out of the output tray.
- If you do not see the jammed paper or if there is any resistance when you pull, stop and go to the next step.
3. Open the rear cover.
4. Carefully remove the paper by pulling in the direction.
- If the paper tears, make sure that all of the paper fragments are removed from the printer.
5. Close the rear cover. Printing automatically resumes.

Nov 17, 2010 | Samsung Office Equipment & Supplies

1 Answer

Front or rear cover open


your front cover is open close it.i think you replace new toner and didnt close it propely

Aug 26, 2010 | Samsung SCX 4521F All-In-One Laser Printer

1 Answer

Says front of rear cover open - won't print, how to fix?


hello your front cover is open .i think you are install new toner and didnt close front cover properly

Aug 26, 2010 | Samsung SCX 4521F All-In-One Laser Printer

3 Answers

Error: "Back cover is open. Close back cover."


We had this problem. It turned out there was actually a piece of paper stuck in the printer! It wasn't so easy to see it from the rear.

We removed the paper from the front by taking out the ink cartridge first. Turned the printer back on and everything was fine.


Mar 26, 2009 | Brother MFC 7420 All-In-One Laser Printer

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