What error information can I find on the display?
The display shows error codes in the format E + number (for example, E01, E02, etc.). When an error code appears, you should see the online User Guide for specific information about that error. The display also shows problem messages such as paper problems or Wi-Fi connectivity issues. (Page 2)
From the official HP Deskjet Ink Advantage 2700 All-in-One Printer manual, page 2
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