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Oki c3400, Have replaced cyan toner 3 times now but still saying toner empty cyan

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Check the window on the side of the drum where the sensor sits. It is on the right side of the drum and can be pushed open with a Q tip it is a small black window.

Posted on Sep 22, 2009

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Can I reset the belt


How to reset your OKI C3300 C3400 C3600 laser printers ...

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How to reset your OKI C3300 C3400 C3600 laser printers drum unit ... drum message you can install the chip on your drum unit and continue printing. ... Replacing the Transfer Belt on an OkiC3000 Series Printer - Duration: ...

Nov 26, 2015 | OKI C3400n Laser Printer

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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

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I have attempted to install 3 different black toner cartridges in my OKI c3400. I keep getting an error: "Toner cartridge lock lever is improper, drum missing, or toner sensor error. OFFLINE." I first...


The plastic shutter in the ID is fully or partially covering the toner sensor window.

Move the cover upward to allow for the sensor to become fully exposed prior to reinstalling the drum.

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Mar 16, 2010 | OKI C3400n Laser Printer

1 Answer

I have an OKI C3400 color laser printer. Can the


The counters reset when you install the new drums. Did you purchase Oki drums or were they after market drums..that could be the problem.

Feb 11, 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

Jan 07, 2010 | OKI C3400n Laser Printer

1 Answer

OKI 3300 Image Drum Problem


Did you remove the plastic tape from the new cartridge?

Feb 16, 2009 | Oki Electric Industry C3300n Laser Printer

1 Answer

I have an Oki C3400 that wont print


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

Dec 10, 2008 | OKI C3400n Laser Printer

1 Answer

Oki c3400 paper jam


Run Status Monitor and make sure it is really a paper jum that prevents printer from printing. It is very likely that another reason is in place. For instance - toner empty of change drum request. All of this causes the "Attention" LED to blink: it's not only paper jam that causes it.

Oct 07, 2008 | OKI C3400n Laser Printer

2 Answers

Toner sensor problems


sensor window on the drum is closed - or the r/h side of the printer has a sensor that needs cleaning.

Dec 24, 2007 | OKI C3100 Led Printer

2 Answers

Toner sensor problems


On the base of machine after removing drums and transport, there are 4 sets of 3 pins that connect to left hand bottom of each drum, these can get toner on them and not make proper contact, each set of 3 pins just pop out with the help of a flat blade, out of base to be cleaned. in yout case just switch the set under the cyan with another lot from different colour.

I am taking it that you are using genuinne non imported oki drum and toner. If this doesnt fix your problem then you must have fauly drum/toner

Nov 13, 2007 | OKI C9300 Led Printer

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