https://community.usa.canon.com/t5/Office-Printers/MF455dw-knocking-noise/m-p/437378#M20283 <P>Hello,</P> <P>That description does not seem to match the normal operating sounds the printer would make. You can try reseating the toner using the steps in the link <A href="https://oip.manual.canon/USRMA-6512-zz-SSM-450-enUS/contents/devu-mainte-rep_tnr.html#1009_h2_04" target="_self">HERE</A>. If that does not resolve the issue, I would suggest contacting support over the phone at 1-800-652-2666. Our agents would be happy to help and can provide any service options if needed.</P> Thu, 21 Sep 2023 16:41:30 GMT Hector 2023-09-21T16:41:30Z https://community.usa.canon.com/t5/Office-Printers/MF455dw-knocking-noise/m-p/424750#M19626 <P>So, from day-1 after getting my MF455dw, the printer makes a light knocking or banging noise when it prints. But oddly, this noise is the loudest after the the printer wakes up from a long sleep. But with continuous use the noise seems to wane away. It's not a very loud noise, more like you just tapping your knuckle on a desk.</P><P>Is this normal, is it a feature of some sort?</P> Fri, 23 Jun 2023 19:02:19 GMT https://community.usa.canon.com/t5/Office-Printers/MF455dw-knocking-noise/m-p/424750#M19626 Vapor5 2023-06-23T19:02:19Z https://community.usa.canon.com/t5/Office-Printers/MF455dw-knocking-noise/m-p/437378#M20283 <P>Hello,</P> <P>That description does not seem to match the normal operating sounds the printer would make. You can try reseating the toner using the steps in the link <A href="https://oip.manual.canon/USRMA-6512-zz-SSM-450-enUS/contents/devu-mainte-rep_tnr.html#1009_h2_04" target="_self">HERE</A>. If that does not resolve the issue, I would suggest contacting support over the phone at 1-800-652-2666. Our agents would be happy to help and can provide any service options if needed.</P> Thu, 21 Sep 2023 16:41:30 GMT https://community.usa.canon.com/t5/Office-Printers/MF455dw-knocking-noise/m-p/437378#M20283 Hector 2023-09-21T16:41:30Z