Poor print quality

[JeffBee]

HP OfficeJet 5230. Changed the black cartridge yesterday with a 302, which was sent by HP. Print quality awful.

I have cleaned heads, re-aligned with no success.  Printing is blurred and unusable.

[sandytechy20]

@JeffBee

Welcome to the HP support community.

I understand that you are getting print quality issues, I am glad to assist you.

Manually clean the area around the ink nozzles

• Gather the following materials:
• A clean, lint-free cloth or a clean, dry cotton swab
• Distilled or bottled water
• CAUTION: Do not use tap water because it might contain contaminants that can damage the printhead.
• Gently grasp the handles on either side of the printer, and then raise the ink cartridge access door until it locks into place.
• The carriage moves to the center of the printer.
• 
• Wait until the printer is idle and silent before you continue.
• Lift up the lid on the ink cartridge slot, and then pull up on the ink cartridge to remove it from the slot.
• 
• Hold the ink cartridge by its sides.
• 
• Lightly dampen a clean, lint-free cloth or swab with bottled or distilled water.
• Clean the face and edges around the ink nozzle with the cloth or swab.
• CAUTION:Do not clean the ink nozzle plate.
• 
• Nozzle plate - Do not clean
• Area surrounding ink nozzle - Do clean
• Ink cartridge contacts - Do not clean
• Wait for the cleaned area to dry before you continue (approximately 10 minutes).
• With the nozzles toward the printer, insert the ink cartridge into its slot until it snaps into place.
• NOTE:Install the color ink cartridge on the left and the black ink cartridge on the right.
• 
• Close the lid on the ink cartridge slot to secure the ink cartridge into place.
• Repeat these steps to clean around the nozzles on the other ink cartridge.
• Close the ink cartridge access door.

Refer to this HP document for further assistance:- Click here

Keep me posted.

If this helps, please mark the public post as an accepted solution so that it benefits several others. 

Cheers.