https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-G7020-got-error-message-6004-after-ink-flush/m-p/604822#M85421 <P>The black print became scratchy, so I did a deep clean, but that didn't help. After conducting an ink flush (there was enough ink), I heard a clicking noise and the printer stopped and displayed error code 6004.</P> <P>I turned the printer off and unplugged it, then turned it on again, but the error message stayed.</P> <P>What can I do?</P> Mon, 17 Aug 2026 12:36:25 GMT Nyanko36 2026-08-17T12:36:25Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-G7020-got-error-message-6004-after-ink-flush/m-p/604822#M85421 <P>The black print became scratchy, so I did a deep clean, but that didn't help. After conducting an ink flush (there was enough ink), I heard a clicking noise and the printer stopped and displayed error code 6004.</P> <P>I turned the printer off and unplugged it, then turned it on again, but the error message stayed.</P> <P>What can I do?</P> Mon, 17 Aug 2026 12:36:25 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-G7020-got-error-message-6004-after-ink-flush/m-p/604822#M85421 Nyanko36 2026-08-17T12:36:25Z https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-G7020-got-error-message-6004-after-ink-flush/m-p/604864#M85434 <P><BUTTON class="F5IKNpSmIP_1Wj8OKse_" type="button" aria-controls=":r1c:" aria-expanded="true"><SPAN class="Zd4Uh_Wqt1sTPjx15N3b wZ4JdaHxSAhGy1HoNVja xrWcR15SIZQFwwZBfYi3">What causes error 6004 in Canon PIXMA G7020 after an ink flush?</SPAN></BUTTON></P> <DIV id=":r1c:" class="m94aMCA3hTXDNQYZ_qAz"> <DIV class="VO6OBbJHGJ9HHR1c8l8g"> <DIV class="qcramu8merKO3n5WPVV0"> <DIV class="space-y-4 whitespace-normal *:first:mt-0 *:last:mb-0 CpfDLoDlD1PEiIyG8vo9 PEx7PVUCjg3ME7Q6CffN QnKMPm2RQV5wdPzny40H"> <P>Error 6004 in the Canon PIXMA G7020 after an ink flush is <SPAN class="font-semibold" data-streamdown="strong">typically caused by a clogged printhead or issues</SPAN> with the ink delivery system. It indicates that the printer is unable to properly deliver ink to the printhead, often due to air bubbles or blockages. You can turn it off, remove the power cable wait ten minutes and restart the printer. If this does not remedy the situation, you should talk to Canon tech support.&nbsp;</P> <P><A href="https://www.usa.canon.com/contact-us/support" target="_blank">https://www.usa.canon.com/contact-us/support</A></P> </DIV> </DIV> </DIV> </DIV> Mon, 17 Aug 2026 17:48:49 GMT https://community.usa.canon.com/t5/Desktop-Inkjet-Printers/PIXMA-G7020-got-error-message-6004-after-ink-flush/m-p/604864#M85434 DerrickL 2026-08-17T17:48:49Z