Question about Panasonic Office Equipment & Supplies

1 Answer

I have a panasonic fp 7742 it has a u1 code front door is open but it is in fact closed what do i do?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 224 Answers

There are two plastic sections, that when the door is closed, activate two switches telling the machine the door is closed. these plastic pieces do break off. the mechanism behind the cover where the switches are may need to be adjusted. the actual sensors may be at fault or there is a small pcb that has faulty components on it. my suggestion would be that a technician pay you a visit. sorry, good luck

Posted on Apr 30, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Close Front Panel U1 Error

Check actuator on door to make sure it's not bent or missing. Actuator tab should engage with photo sensor to tell machine door is closed.

Mar 01, 2011 | Panasonic FP-7750 Black and White Copier

1 Answer

My Panasonic FP 7850 is showing the e3-11 error code. I cannto get it off from that, what do i do?

E3-11 means a problem with a High Voltages Power Supply Leak..... this most commonly is caused by a dirty corona unit,..probably covered with spilling toner from within the machine.
Open the front door, realease to the left the Green handle in the middle at the bottom...this will lower the Transfer corona unit. You can then pull it out... you will see inside 3 wires, this unit is supposed to be "clean" ...if there is toner on it try cleaning it off with a soft brush or compressed air...DO NOT BREAK THE WIRES.....if you break them you will most definately need a serviceman to replace them because it will not work if you break them!!
Once you have cleaned the corona unit put it back into the holder that you removed it from...reverse your actions and close the machine back up...hopefully that will get rid of the error code.

Feb 28, 2011 | Panasonic FP-7850 Copier

1 Answer

My sharp ar5516 use to display h4, l1, h1, p1, u1, ch and i need the solutions to open them.

For H4 enter the following codes # interrupt C interrupt 14 Start button twice For ch check whether all the doors(side door,front door) are closed.

Jan 15, 2011 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

Error Code U 6

Error code U-6 means the door on the RHS of the machine is not closed properly.

Jun 24, 2010 | Panasonic FP-7735 Black and White Copier

1 Answer


E3-50 is the malfunction of the transfer wire cleaner. The transfer wire assembly is under the drum. The transfer wire is on the right. The cleaner moves back and forth. If you feel comfortable taking it out, respond. There are fine metallic wires in each slot, so don't break them

Oct 04, 2009 | Panasonic FP-7735 Black and White Copier

1 Answer

U 1 error message

U1 is a right cover open error. So either that cover is not closed all the way, the tab on the door itself is not hitting the sensor that detects if it is closed, the sensor itself isn't working properly and lastly it could be board malfunctions. Most times on this model it is either a broken tab on the door or it is not shutting correctly. The front door has to be completely shut before the right door will shut. If you are looking at the right dooor straight on the sensor is at the bottom left corner of the machine. There is a little **** in the plastic that is where the sensor is. There is a piece of plastic on a spring that is on a guide that slides back when "triggered" some times that can come off the guide.
Hope this helps.

Dec 31, 2008 | Panasonic DP-150A Copier

1 Answer

Panasonic FP 7742 Copier

check drum and drum sensor. if the Drum cleaning blade (DCB) has failed and is smearing toner around the drum then the drum sensor can't see the drum. clean it with a brush. the sensor sits in the drum/ cleaning station.

Oct 14, 2008 | Panasonic FP-7735 Black and White Copier

2 Answers

Error code on panasonic copier fp-1670

Welcome to Fixya.
Hopefully we can answer some if not all of your questions.

An E3-01 is an error code for your toner hopper. Did you just recently change your toner bottle?
If so, open your front door, take the toner bottle out. Close the front door, turn the machine on, and let the machine cycle and stop.
After the machine is stopped, then open the door and then place the toner cartridge back in.
Close the door, and if the error code doesn't come back your problem should be fixed.

Let me know if you have any other problems.
Good luck
Please post a rating if I have helped you with your question/problem.
have a good day
Mac =)

May 20, 2008 | Computers & Internet

1 Answer

Panasonic 7735

Hi Yes can help but need to know the code. If you open and close front cover machine should reset.If not need the code

Jul 15, 2007 | Panasonic FP-7735 Black and White Copier

5 Answers

Panasonic 7735 problem

did you tried to restart the copy machine or to disconnect it from electricity for few minutes?

Jul 15, 2007 | Panasonic FP-7735 Black and White Copier

Not finding what you are looking for?
Office Equipment & Supplies Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Office Equipment & Supplies Experts


Level 3 Expert

1362 Answers

Norman  J Weimar Jr
Norman J Weimar Jr

Level 3 Expert

6161 Answers

Mitch S
Mitch S

Level 1 Expert

25 Answers

Are you a Panasonic Office Equipment and Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides