HP Photosmart Pro B8353 Printer - Manual (Page 100)

The printer is rejecting the pen
Poor contact between the print cartridges and print cartridge cradles may cause the pen to be rejected.
When this occurs, try cleaning the electrical contacts on the print cartridges and print cartridge cradles:
1. Remove the print cartridge from the printer (see Inserting the print cartridges ).
2. Clean the electrical contacts on the print cartridge cradle with a dry cotton swab.
90 Chapter 6 Troubleshooting ENWW