Hi @JB22B,
Thank you for your response,
The HP DeskJet D1520 printer rejecting both cartridges could have been due to several possible factors.
- Cartridge Positioning or Poor Contact: If the cartridges were not properly seated in their respective slots or the contacts were dirty, the printer may have failed to recognize them. The carriage movement you initiated likely helped to reset the position, allowing the printer to reestablish a proper connection.
- Ink Cartridge Protection Mechanism: Some printers have built-in mechanisms to protect against counterfeit or damaged cartridges. If either cartridge was flagged as being incompatible or problematic, the printer could reject them. Replacing both cartridges simultaneously might have reset the printer's recognition process.
- Printer Firmware Glitch: Printers can occasionally experience software or firmware glitches that prevent them from detecting cartridges correctly. A reset or removal of the cartridges followed by a restart of the printer can help resolve such issues.
- Cartridge Expiration or Damage: If the cartridges were old, expired, or physically damaged, they might have failed to work properly. Replacing them with fresh ones would naturally fix this issue.
In your case, pushing the power button to allow manual movement of the carriage and replacing both cartridges seemed to resolve the problem. This suggests that the issue was likely related to the cartridge connection or the printer's temporary error in recognizing the cartridges.
Is there anything else that I can help you with today?
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Take care and have a great day ahead!
Alden4
HP Support