Question about OKI C3400n Laser Printer

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I have an Oki C3400 that wont print

I have an Oki C3400 printer that wont print. The amber light is blinking on the alarm status light and the detailed printer status says "Drum and toner life (black)." I can't seem to figure out what is wrong because I just replaced the toners and the drum works fine in my other Oki printer. Any help?

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  • 2 more comments 
  • barkbuster Dec 16, 2008

    Light is blinking even though I have replaced toner. I cannot get printer to reset post toner replacement. It will not print.



  • savchem Dec 31, 2008

    replaced the cyan toner and get error that says, not locked or needs replacing. specific for cyan only

  • cassbu Jan 12, 2009

    We also have tried replacing all the cartridges, it still doesn't work.

  • snargledorf Jan 29, 2009

    Amber light is blinking. Was printing fine replaced the cyan toner cartridge has an empty black toner but never seemed to cause a problem before. I am getting new toner tomorrow so I will try to swap out the cartridges then and update here.

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  • 63 Answers

Could very well be the sensor window. I suggest looking at the side of the drum on the right side and pushing a q tip into the opening. heres an older model thats sort of similar instructions. http://www.c3400.co.uk/index.asp?menumode=0&content=sensorerror
Also you can check the exact error code here. http://www.okic3400.co.uk/library/downloads/utilities/c3300c3400smv1115.exe

Posted on Sep 22, 2009

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Amber light on oki c3300 continues to flash and printer will not print


Here's what the owner's manual has to say:

Error status (Amber, blinking): you cannot continue to use the
printer. Intervention is required to recover from the error. Fatal
errors are irrecoverable and require a service call.

Blinking 1 (2S cycle)
An error has occurred but
printing can continue if you
press the ON LINE or CANCEL
switch.

Blinking 2 (500mS cycle)
An error has occurred. You
need to replace consumables
or remove jammed paper, for
example. The printer then
recovers from the error and
printing becomes possible
again.

Blinking 3 (120mS cycle)
A serious error has occurred.
rebooting or a service call is
required.

The Status Monitor in Windows provides a readable description
of the printer status corresponding to the indications of the
LEDs. In Mac, the printer driver provides status information
once you have sent a document to print. In Windows, if you
have the Status Monitor Preferences set to Pop up on alerts,
this readable message will be presented on screen whenever
an abnormal condition occurs.

There's no further information. Sorry.

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1 Answer

I have and OKI C3400. My printer is showing globs


yuo have a leaky black toner cartridge
take out the cartridge and look for damage
aslo check the fuser for damge or leaks

replace any damaged cartridge

Mar 22, 2010 | OKI C3400n Laser Printer

1 Answer

On an OKI C3400 the alarm lights blinks amber once a second. Cannot print status page. Replaced black toner and drum and re-installed other colors with no change.


THIS SOLUTION IS FOR AN OKI C3400N ONLY

As I'm sure you know, that blinking amber light indicates that:
  1. A toner lock is not fully "locked", or
  2. A toner is empty, or
  3. A drum is empty or near empty
The first question should be what does your C3400 monitor software tell you is wrong? I am assuming it said the black toner and/or drum needed to be changed - so you are fairly certain it is the black that is where the problem is? You may also have run the report from the printer that you get by pressing the "On-line" button and seen what is failing.

Assuming that is the case, and one or both of these signals an empty black toner, the problem may be in the new black toner cartridge. You can try this:
  1. Make sure the toner "lock" on all toners is fully engaged - assuming they are

  1. Open the top
  2. Lift out the entire black assemble including the toner and drum components.
  3. Keeping the assembly in the same orientation as you lifted it out, look on the RIGHT end.
  4. You should see two metal contact points, near the top at about the same level as the top of the toner.
  5. Just below these contact, you should see a small, rectangular hole - about 1/4" square.
  6. If you look in there you may see what looks like a small piece of black plastic that covers the hole from inside.
  7. If so, take a small pointed object (like a bent paper-clip) and gently reach in the hole and touch the small plastic piece on the inside that is covering the hole.
  8. You should be able to gently lift that piece of plastic UP.
  9. You may have to try lifting it a time or two, but it should stay UP if you have a new black toner installed.
  10. Once you have it UP carefully reinstall the assembly.
  11. Close the top and let the printer recycle.
  12. You may need to try this a couple of times to get the plastic to stay up on your new toner.
So you understand, here is what may be happening. That little piece of black plastic actually sits in line with a sensor in the printer that monitors toner / drum levels. When a new toner is placed in, that piece of plastic should be UP, so the sensor can monitor the level. As the toner gets used, the plastic liece gradually falls down until it completely blocks the sensor - indicating the toner is empty. That is how the monitoring software knows how to signal you.

This has worked for me several times - most especially when I tried using non-OKI OEM 'compatible" toners - but no guarantees this will help you

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