Question about OKI B4100 Laser Printer

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OKI B4100 paper output. Frustrating!

We had a paper jam in our OKI B4100. Now, the thing will only print face up in the rear output tray. We hate this, as we have to clean the tray out every 50 sheets.

How do we get the thing back to printing face down in the front tray? There is no option for tray output, only tray input -- I've scoured the internet and I've scoured people's problems with this printer. I've gotten NOTHING.

Please help. This printer has a mind of its own.
- Jayne, a transcriptionist.

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Re: OKI B4100 paper output. Frustrating!

If your oki is like the 4300 we use it may be as simple as making sure the extention for the back tray (where the paper is printing to now) is pushed all the way in. This actually selects the tray option. If this tray extention is pulled out at all, your printer will print to the back tray.

Posted on Oct 25, 2007

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My paper feeds out the back and I want it to print out the front. How can I set this up?

If the paper output tray is pulled out at the bak then paper will exit through the back (face up). If you push this tray down then paper will exit out the top and lie face down on top of the printer. The tray that pulls out of the front of the printer is a input tray only and cannot be used to output any pages.

Jul 28, 2011 | OKI Electric Industry B4600 Laser Printer

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Our machine shows E051. so what can i do.

The JAM DUPLEX message appears if you remove a sheet of paper from the face down output tray after only one side has printed.
The paper sizes you can use with the duplex printing function are A4, Letter or Legal.

If the paper adjustment lever for duplex printing is not set correctly for the paper size, paper jams may occur and the printing will be out of position on the page.

Open the back output tray.
Use both hands to slowly pull the jammed paper out of the fuser unit.

Close the back output tray.
If the paper jam cannot be cleared, go to the next step.
Pull the duplex tray and paper tray out of the printer.
Pull the jammed paper out of the printer
Put the duplex tray and paper tray back in the printer.

Click solved and vote if problem is solved. Otherwise post again

Aug 02, 2010 | Printers & Copiers

1 Answer

How to clean an OKI B4100 (new toner, blotchy printing)

Open the cover, remove the cartridge and vacuum carefully the interior. Clean the leds when the cover is open and it should work.

Apr 04, 2010 | OKI B4100 Laser Printer

1 Answer

Oki B4600 ONLY prints to rear tray - how to print to front?

Yes. click on your printer icon. select properties then look for Tray or Output Tray or Tray settings and change it

Jul 08, 2009 | OKI B4600 Laser Printer

1 Answer

OKI B4100 paperjam warning

Acording your explained you need do
1) clean the input tray roller surface, to make sure it has enough grip force.
2) looking for a sensor around the roller rear, it could be cause the paper jam there, because if the sensor does not detect any input paper go throug there then should be stoped at roller rear.
3) if you find a optical sensor there, please use a slft cotton stick to clean its surface. (maybe open some cover needed)
hope you fix it , ask me any time please!

May 17, 2009 | OKI B4100 Laser Printer

1 Answer

HP LJ P3005 13.31.00 ERROR

As i can understand whenever you try to print with rear door closed printed page should come on top from top output roller however paper gets jammed.
Try to print a page using rear door open and it should come out from the rear drop down tray it printed page comes out successfully with rear flap open than paper gets jammed at top due to faulty top output roller.
However if the paper gets jammed at fuser with rear door closed than it is issue with fuser in that case you need to get fuser replaced at the same time replace 20 tooth gear next to fuser.

Thanks and Regards
Neeraj Sharma

Apr 11, 2009 | HP LaserJet P3005n Printer

1 Answer


Dear jamin4volks;

As per this excerpt from the Oki B4350 User manual:

For face down printing, make sure the rear paper exit tray is closed (the paper exits from the top of the printer). The paper exit bin on the top of the printer stacks printed pages face down, capacity 150 sheets of 20 lb. paper. Pages printed in reading order (page 1 first) will be sorted in reading order (last page on top, facing down).

For face up printing, make sure the face up rear paper exit tray is open and the paper guide is extended if required. In this condition, paper will exit via this path, regardless of driver settings. Paper is stacked in reverse order, capacity 50 sheets of 20 lb. paper.

Always use this tray and the manual feed tray for heavyweight stocks to reduce the possibility of paper jams."

This manual is available at

Hope this helps;


Apr 18, 2008 | OKI B4350 Laser Printer

2 Answers

Persistent paper jam message

In response to a question by Fixya. I solved it by searching throgh all references to paper jams on Fixya. I found a solution which I have already described. This is a very helpful site.

Feb 27, 2008 | OKI B4100 Laser Printer

2 Answers

Error LED blinking after paper jam, won't print

I have a similar but different model B4300. Several others, & I have found that a small piece of paper 1/2 square may lodge under a plastic guide, holding open a switch. This is very difficult to notice if you don't know where to look.
Open top lid
Remove the ink cartridge/roller drum as a single unit.
Look in the printer at the metal roller in front.
A Plastic strip on top & in front of the roller covers 2 square holes which should look dark. On your LEFT, as you face the unit, there is a small magnetic switch, to the LEFT of the LEFT square hole, under the plastic.
In my case, the paper was seen as white in the hole, and extended under the switch. I was able to grasp it with a small medical forceps, next to the switch. By gently twisting, I pulled it out without taking the unit apart.
The printer then worked perfectly after the paper under the switch was removed.

Dec 13, 2007 | OKI B4100 Laser Printer

4 Answers

B4100 - Yellow Light

U can have stuck a little piece of paper, that it mess whit some sensor. Try to open the Oki, push the drum unit out and watch if there is no paper stucked.

Nov 26, 2007 | OKI B4100 Laser Printer

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