20 Most Recent Lexmark JetPrinter Z55 InkJet - Page 8 Questions & Answers

Hi there

You should always mention the printer model as well as what operating system you use.

This is what i found on LEXMARK's website about your error, and it seems you have one or 2 faulty cartridges, or you are using compatible cartridges instead of Lexmark Originals:

Problem Error messages; Error: "Cartridge Error 50C"; Cartridge error; Black cartridge missing; Color cartridge missing Solution Cartridge Error 50C
Your print cartridge has shorted.

  1. Power off your All-in-One and unplug it.

  2. Plug in your All-in-One again and turn it on.

  3. Uninstall and then reinstall your cartridges.

  4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.

Error: Black Cartridge Missing
The black cartridge is not installed. (Install cartridge PN 82)
Error: Color Cartridge Missing
The color cartridge is not installed (Install cartridge PN 83)
Cartridge Error
Complete the following instructions:

  1. Power off your All-in-One.

  2. Use both hands to lift up the scanner unit until the scanner support holds it open.

  3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.

  4. Remove the color print cartridge.

  5. Lower the scanner unit until it is completely closed.

  6. If the error message reappears, replace the black print cartridge with a new print cartridge.
    If it does not repeat steps 1-3 and then go to step 7.

  7. Reinstall the color cartridge and remove the black print cartridge.

  8. Lower the scanner unit until it is completely closed.

  9. If the error message occurs again, replace the color cartridge.

  10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.

  11. Lower the scanner unit until it is completely closed.

  12. If you receive the error message again, replace both cartridges.
Hope it helps


Lexmark Office... | Answered on Feb 27, 2019

if not used for a while the print head would have dried up.
You can try being it back to life by cleangin the heading with some nail varnish remover and cotton bud.
If this doesn’t work you will need to just buy a new cartridge.

Lexmark Office... | Answered on Feb 23, 2019

Try this link. It is a similar problem and it gives pictures with instructions.http://support.lexmark.com/index?id=SO5018&locale=EN&segment=support&productcode=lexmark-prevail_pro705&page=content&userlocale=EN

Lexmark Office... | Answered on Feb 12, 2019

Possible fix in free manual for a Lexmark printer:


Tray 2 sensors not plugged on or a possible controller board part failure.

Lexmark Office... | Answered on Feb 09, 2019

Using water can really do damage, especially if it was not completely dry. Ammonia is way better, rubbing alc is ok. Try another new color cartridge, many times cartages are bad when you get them, also go to Setting / devices / and see if black only is selected as default.

Lexmark Office... | Answered on Feb 04, 2019

If you have the old cartridge, put it back in the machine and see if you get the same message. If the message changes, then the problem likely has to do with the new cartridge and something being wrong with it.

Lexmark Office... | Answered on Feb 02, 2019

Ensure that the proper paper size is being used in the ADF.

Are the paper guides on the ADF tray properly adjusted?

Inspect the ADF separator roll and ADF separator pad for wear. If they are worn,

replace them. If they are dirty or have a buildup on them, clean them with a damp


If the ADF fails to pick check to make sure that the paper height in the ADF input

tray is beneath the height marker on the ADF paper guides.

Inspect the paper present sensor on the ADF.

• Check the flags on the sensor. Are they able to move freely? If the sensor

flags are damaged, replace the ADF assembly.

Make sure the ADF cable is securely connected to the ADF and the controller


If the cable is properly connected, perform the following checks:

• Check the ADF cable for continuity.

• Check pin 1 on controller card connector J2 for +5V.

• Pin 3 should be ground.

If voltages are present, replace the ADF.

If replacing the ADF does not fix the problem, replace the controller card.

If the ADF is multi feeding, check the ADF pick roller and pad for dirt. Remove

them from the MFP, and clean them with a lint free cloth and isopropyl alcohol.

If the leading edge of the paper is damaged, instruct the user to lessen the

number of documents being copied from the ADF at one time.

If there are excessive misfeeds from the ADF, verify that the ADF paper tray and

extender are properly installed.

Skews and jams at the ADF paper present sensor might be caused by an
improperly closed ADF cover. Ensure the ADF cover is closed properly.

Lexmark Office... | Answered on Jan 30, 2019

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