Question about Canon MF8350Cdn AllInOne Laser Printer

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Close front cover error

Front cover is not closed, can't get the error to go away

Posted by Anonymous on


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Gail Damerau

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Any pictures for this issue

Posted on May 22, 2020


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SOURCE: my mp600 keeps saying close inner cover-which is closed

I had the same issue, turning off didn't solve it.
There's a plastic flap the width of the print tray just inside that I flipped up and it solved this problem. It is directly in front of the ink tanks. I'm assuming we flipped it down and forgot about it. It seems it needs to stay up, although you wouldn't notice it when it flips down when you close the top, as it closes just fine with it down. It's easy to overlook. This took me a few hours to realize.

The top of the flap has a half circle cut out of it in the middle.

Posted on Dec 18, 2008



  • 1 Answer

SOURCE: "Close the front cover" sign even the door is closed already

is your problem solved ?

Posted on Mar 31, 2009

Ronnie Gregorio

  • 118 Answers

SOURCE: i have a canon ir 400 the machine shows close the

Try to open and closed the front door several times,If the left cover and the front door are closed properly and still showing "close front door" most
probably the internal contact of door switch are not good , door switch replacement is needed

Posted on Jul 06, 2009

Xanda Frederica

  • 183 Answers

SOURCE: The inner cover (flap in front of cartridges) is

When the message shows means inner cover sensor is faulty so it cannot detect inner cover state correctly. Try to clean the contact sensor with contact cleaner is good idea since it sometimes an oxidation occurs. Many times I success fix the problem like this.

Posted on Jan 03, 2010

Jaime Velez

  • 31 Answers

SOURCE: canon machine message front cover is close but

there are switch behind the front door that are activated by the front cover. you may have a broken or missing actruator pin on the front door. look very carefully on the door for anything that seems to be missing. if ther is just use a piece of paper to actuate the switch. jaime

Posted on Jul 16, 2010

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There are many possibles that can cause "Close Front Cover"
Check the front cover actuator, switch. If all covers, switches is working fine, probably power supply is faulty.

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The front door switch or actuator is broken or the door may be warped .Have you tried putting pressure on the front cover? as this may help to indicate if the switch is faulty.

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Replace drum/cartridge. Close front cover.

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E 803 error in 3170

this is Door close error.

Check if the door's nose that goes into the sensor hole broken, check the door closed/open switch, Check on connection of the front cover open/close switch (SW3) , Replace the front cover open/close

It's hard to locate it without service manual, but... if you manage to remove the plastic cover over the toner inlet then you will be able to see the hole where the nose of the door ( inner side of the door ) goes into.

For service manual, You can send me the mail on [email protected]

Hope that helps!

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1 Answer

Message 'Clean Sensor' has appeared. Followed advise to open Cover D and close it again but to no avail. Has anyone got any other suggestions, please?

Follow the steps below to clear the "Clean Sensor" error message.
  1. Open the front cover of the printer (cover D). c2600_cover_d.jpg
  2. Slowly close the cover again. c2600_close_cover_d.jpg This action will move the lever shown below and clean the sensor.
  3. Open and close the cover several times. Once the front cover is left closed the printer will start to calibrate.
Once complete, the error should no longer appear and the printer should resume normal operation.

Note: If the error message is still apparent after following the steps above, contact Epson for further advice.

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You can download the service manual free at

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make sure the protrusion that activates the switch telling the machine that the door is closed is not damaged.

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Canon MF3220 System error E000

Hi there Mark765,

According to Canon, the unit needs to be reset.
To do this: Open the front cover. Close the front cover. (I'm serious)

Click here for the canon page concerning this error. It's alsao a good source of additional info.

Let me know if the error persists (or goes away)

Remember: Good things come to those who Rate!

Aug 15, 2008 | Office Equipment & Supplies

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