When you get the error message
"Replace imaging unit, 0 estimated pgs remain [84.3x]"
This means the imaging unit has reached end of life and needs to be replaced. The device will not print, and this message will not be cleared, unless you replace it with part number
50F0Z00
(or
500z)
Vertical streaking.
If the imaging unit is near end of life, or the device has had problems with non standard toner, vertical streaks may occur on the page. Replacing the imaging unit will resolve the problem.
Vertical streaks on page
Vertical band at top of page.
This typically appears on printed images, but can also appear on text. The most likely cause is toner contamination on the charge roll, however if the band is still visible after printing 30-40 continuous pages this means the
imaging unit needs to be replaced.
Vertical Banding on images
Seal failure on the imaging unit.
Occasionally seal leaks have been seen from the Imaging Unit.
Toner will be seen on the main frame near the Imaging Unit sides.
If toner build up is excessive, it may even fall into the Tray below. Cleanup with a toner vacuum may be needed.
Replace the Imaging Unit to fix the problem.
Spots, scratches, marks on the page.
If they are random, this indicates a problem with toner scatter.If they are repeating patterns, measure the distance between matching marks or spots. If the distance is one of 97mm, 47mm or 38mm, this indicates marks or dents on the imaging unit and it will need to be replaced.
You receive the message
Replace defective imaging unit
The imaging unit is defective and needs to be replaced. If you just installed it, it will be covered under warranty - contact Lexmark Australia on 1300 362 192
You receive the message
Reinstall missing or unresponsive imaging unit and the below instructions don't resolve the problem.
Try one or more of the following:
- Check if the imaging unit is missing. If missing, install the imaging unit.For information on installing the imaging unit, see the "Replacing supplies" section of your device's User's Guide
- If the imaging unit is installed, then remove the unresponsive imaging unit, and then reinstall it.
- Note: If the message appears after reinstalling the supply, then the imaging unit is defective. Replace the imaging unit.
You receive the message
Replace unsupported imaging unit
The imaging unit you attempted to install was either non-genuine, or was from a different region. Buy a genuine
Lexmark imaging unit from an authorised Lexmark supplier in your country/region.
You receive a 31.6x error
One of the following errors is shown on the display:
31.60 Imaging unit smart chip error
31.61 Imaging unit I2C packet timeout
31.62 Imaging unit I2C packet has been sent but code timed-out on receiving the data (callback)
31.63 Imaging unit security error in the send challenge sequence
31.64 Imaging unit ROM signature error
31.65 Imaging unit stuck busy (status register and/or CRI Arbiter register report busy)
31.66 Toner failed to replenish into the imaging unit
In this case you need to ensure that the imaging unit is properly installed. If yes, check if the imaging unit is supported. Replace with a supported imaging unit if necessary.
If the problem remains, you will need to organise a Lexmark service call (Australia 1300 362 192)
You receive error message
32.11 Imaging unit smart chip compatibility error
This could be caused by an unsupported imaging unit (non-genuine or incorrect region). Replace with correct imaging unit to clear this error. If your imaging unit is supported, you will need to organise a Lexmark service call (Australia 1300 362 192).
You receive error message
84 Imaging unit low
If expected, replace the imaging unit. If unexpected, call Lexmark Support (Australia 1300 362 192)
Replacing the imaging unit
, and select
an image from a PDF. 
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