So that the Community can help you better, we need to know exactly which Canon printer model you're using. We've made three different printers with the number 6020 in its model name, specifically the PIXMA G6020, the PIXMA TS6020, and the MAXIFY GX6020. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.
Thanks and have a great day!
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM