Question about HP Officejet Pro L7590 All-in-One InkJet Printer

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Changing the printhead

I have tried two (2) different new printheads (K) and the system keeps giving me the message that there is no ink and I need to replace the new with the old cartridge. Please advise.

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  • Kim Tyler May 11, 2010

    make sure you took the tape off the bottom of the cartridge

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FYI: The L7590 doesn't have any tape on either the cartridge or the printhead.

Right couple of things here...

1. The printheads in the L7590 are either K/Y (black/yellow) or C/M (cyan/magenta)... There's no single black printhead unless of course this is not an L7590 we're discussing here.

2. The cartridges ARE individual with K, Y M C (Black, Yellow, Magenta and Cyan).


It's likely that the printer has one of the following faults.

  • Chip contacts and/or chips on the cartridges are soiled and/or damaged. Try checking for ink on chips and contacts in the cartridge bay

  • The little white oval pump in the bottom of the cartridge bay has become disconnect or broken. This is used by the printer to pump ink into the printhead but it also detects pressure variations and has a logic circuit which declares low pressure as "no ink".

If the problem is the latter then you need to get the printer serviced and/or repaired at a service center.

If it's the former you should be able to fix it yourself.

If you're using non OEM (ie: not by HP) cartridges I'd recommend getting a new OEM/HP one to test before you go for a service as some cartridges are just poorly filled and/or designed.

Hope that helps.

Posted on Feb 19, 2009

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Do any one have trouble with the hp 920 inkjets/refills


Regarding your question about the HP 920 (or 920XL) refilled cartridge usage/problem...we are guessing you are observing poor print quality or a missing color(s)? Please note this type of problem occurs now and then and is completely recoverable. The most common cause of poor print quality is trapped air between the ink cartridge and PRINTHEAD*, so we suggest you perform the "Clean PrintHead" procedure from your printer control panel (i.e. select 'Tools' - 'Clean Printhead', or similar), you may need to perform it twice (2X) to recover the ink system. If this doesn't work you may wish to jump straight to procedure E.

Please read thru all the checks below prior to beginning:
NOTE: If one or more the colors were previously dry fired during printing (i.e. if you continued printing using only a few colors to one, air may have been accidently ingested into the ink lines between the cartridge(s) and PRINTHEAD*. To recover from this problem, you may have to run the "Clean Printhead" procedure 2-3 times: http://inkjet411.com/?page_id=1589

A. Watch the video on the HP 920 support page which describes some of the common issues you may encounter with refilled ink cartridges: http://inkjet411.com/?page_id=1983
- Please note that poor print problems are somewhat common and is completely recoverable in most cases.

B. Then to verify the lines are clear and working correctly, print the "INK RECOVERY TEST PRINT" from our Test Prints page: http://inkjet411.com/?page_id=146

C. Then we suggest you run the self-test print (under maintenance/tools menu), this will verify nozzle performance and that each color is firing a solid band of color (i.e. you should not see any bands or missing lines in the pattern). This is also a good test to help isolate which color (or portion of the electronic PRINTHEAD*) may be causing the issue.

D. If a problem persists (poor print quality/missing colors, etc.), then we suggest that you thoroughly review the steps outlined on our HP 920 support pages, including PRINTHEAD* removal/printer cleaning and service station cleaning. It is suggested you refer to printer manufacturer instructions first as the Inkjet411 procedures are provided for general guidance purposes only. Please note that a dirty service station can also cause poor image quality and/or ink cross-contamination or bleed between different colors: http://inkjet411.com/?page_id=1495

E. If the poor/degraded print quality problem still cannot be corrected, then the PRINTHEAD may be dry and may need to be flushed. Refer to PRINTHEAD flushing video procedure at the following link or refer to steps below: http://inkjet411.com/?page_id=2412

1. Remove all ink cartridges from the printer.
2. Remove the printhead - in most cases you will need to pull up on the lever at right side of carriage assembly to unlock the printhead. Lift printhead straight up to remove.
3. Over a sink, run warm tap water directly into the 4 ink ports for approximately 2 minutes - this will effectively saturate the foam ports and blow ink out/thru the nozzle plate bottom.
4. Using a lint-free towel, remove water from rear/bottom electrical contacts. Ensure printhead electrical contacts and exposed surfaces are fully dry.
5. Install the printhead into the printer. You may observe a "Replace Printhead message" so you will need to cycle printer power by turning printer off and then on to clear the error.
6. Install ink cartridges and retest printer. You should observe a New PRINTHEAD alert message followed by an approx. 4-minute preparation countdown prompt.
7. If permissible, activate the 'Clean Printhead'. This can be done from the printer's control panel or software printer driver (for example, by selecting 'Tools' - 'Clean Printhead', or similar).
F. To perform advanced PRINTHEAD diagnosis please visit our 'HP Printer Diagnostic Test' page: http://inkjet411.com/?page_id=1813

*The HP 920 printer models have an electronic PRINTHEAD (customer replaceable) within the base of the carriage assembly (responsible for pulling ink from the 4 ink cartridges and then firing the ink droplets onto the paper) - the PRINTHEAD will eventually fail over time depending on printed content, frequency of printing and printer duty cycle.

Video of how the PRINTHEAD functions: http://inkjet411.com/?page_id=2054

NOTE: "Empty" and "Low Ink" alerts are COMPLETELY NORMAL for HP 920 ink cartridges which have been refilled! While at first this may be an unusual workflow, it does allow print operations to proceed. Only brand new ink cartridges support ink level monitoring. For "Low Ink", "Unauthorized ink", "Non-HP ink", "Fraud", "Counterfeit ink" or similar messages, you may ignore/dismiss this message by pressing 'OK' once for each cartridge, so that the printer resumes its normal operation. We suggest you do this at the printer's control panel immediately following ink cartridge(s) installation.

For information on HP 920 refilling tips please watch the video here: http://inkjet411.com/?page_id=1983

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Alternatively you can try to see where the leakage is taking place and try to seal it with silicon sealent so it can atleast last untill someone attends to the probelm from HP.

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Hello there:
This problem is usually due to a print head that needs to be replaced
I have provided the information that you will need ok
best regards mike
This document provides information on how to replace a printhead or ink cartridge.A printhead may need replacing when print quality issues cannot be resolved by cleaning the printheads or a front-panel display message indicates a printhead needs to be replaced.An ink cartridge needs replacing when a front-panel display message indicates either:
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CAUTION: Never remove an ink cartridge and a printhead at the same time. Use the table below to identify the correct ink cartridge part number: Ink cartridge Part number HP 14 black print cartridge C5011A HP 14 tri-color print cartridge C5010A Use the table below to identify the correct printhead part number: Printhead Part number HP 14 black printhead C4920A HP 14 cyan printhead C4921A HP 14 magenta printhead C4922A HP 14 yellow printhead C4923A Replacing the ink cartridges Follow the instructions below to replace the ink cartridges:
  1. Turn on the unit, and open the print-carriage access door by lifting the handle until the door locks into place. Figure 1: Opening the access doorc00064456.jpg
  2. The print carriage will move to the center of the unit.After the print carriage stops, remove the ink cartridge by pressing the gray release button, then lifting the cartridge up and out of its slot. Figure 2: Removing the ink cartridgec00064457.jpg
  3. Remove the new ink cartridge from its packaging and, being careful to touch only the black plastic, remove the tape. Figure 3: Removing the tapec00064458.jpg
  4. With the ink cartridge label face-up, push the new ink cartridge firmly down into the appropriate slot until it clicks into place.The color ink cartridge inserts into the right-hand slot as indicated by the rainbow colored oval. Figure 4: Inserting the new cartridgec00064459.jpg
  5. Close the print carriage access door. CAUTION: If the ink cartridge is removed before a replacement is available, close the print carriage access door and replace the ink cartridge within 24 hours.
Identifying parts of the printheads Use the table below to identify the parts:
  1. Printhead handle
  2. Printhead tower
  3. Copper contacts
  4. Plastic tape
  5. Ink nozzles
c00064460.jpg Do not touch:
  • Copper contacts
  • Ink nozzles
  • Printhead tower
c00064461.jpg

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You can find it here.

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