OfficeJet Pro 8500 not printing after cleaning print heads

[DrBJ1]

My OfficeJet Pro 8500 had not been used for three months.  At first, it printed faint and streaky bkack text.  I cleaned the print heads, after which it is not generating any visible text.  I printed a Print Quality Report: the magenta lines are faintly visible.  Nothing else is.

[8lives · Accepted solution]

The ink has dried in the printheads.

Inkjets are not meant to sit unused for long periods of time.

You have two options new printheads or new printer.

[DrBJ1]

Thanks: all too helpful!  In the past, leaving it unused for 6 weeks or so has not produced this problem. 

[8lives]

Consider getting a laser printer if you do not print often.

[JessikaV]

Hello,

Diagnostic Tool-Fixes installation and driver issues (1)

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11.5 MB

Dec 8, 2022

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Make sure the printer is ready to print

The printer should be on, have paper in the input tray, have sufficient ink or toner, and display no errors or blinking lights.

1. Make sure the printer is not off or in Sleep mode. Press the Power button to wake it or turn it on.

2. Make sure paper is loaded into the input tray and the paper width guides rest gently against the sides of the stack.

3. Make sure the correct ink or toner cartridges are installed and the printer has sufficient ink or toner for your print job.

4. Make sure no error messages or blinking lights display on the printer control panel. Resolve any errors before you use the printer.

5. Restart the printer to clear any error states. Turn the printer off, wait 30 seconds, and then turn it on.

   Reset the printer

   Reset the printer to recover from printer errors or failures.

   1. If your printer has a rechargeable battery, remove it.

   2. With the printer turned on, disconnect the power cord from the printer.

   3. Unplug the power cord from the power source.

   4. Wait 60 seconds.

   5. Reconnect the power cord to a wall outlet and to the printer.

      NOTE: 

      HP recommends plugging the printer directly into a wall outlet.

   6. Turn on the printer to complete the reset.

   JessikaV
   HP Support Community Administrator