What do the error codes E3, E4, E5, E6, E7, and E9 mean on the control panel display?

These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)

From the official HP Ink Tank 310 manual, page 11

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What does error code E3 mean on my HP Ink Tank 310?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)
What error does E4 on my HP printer mean and how do I fix it?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)
What error does E4 on my HP printer mean and how do I fix it?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)
How do I fix error code E4 on my printer?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)
How do I fix error code E4 on my printer?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)
Can you explain what each of the error codes (E3 through E9) displayed on an HP InkTank 310 means?
These error codes appear when the Number of copies icon alternates between the letter E and a number. E3 means the print carriage has stalled; E4 means there is a paper jam; E5 means the scanner is not working; E6 means the printer is in a general error state; E7 means the printer has reached the maximum number of primes allowed; and E9 means ink system maintenance is required. For E3 and E4, press the Resume button after clearing the obstruction or jam. For E6, turn the printer off, unplug the power cord, wait a minute, plug back in, and turn on again. (Page 11-12)

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