https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF641Cw-Color-ink-blots/m-p/425604#M19654 <P>I have a MF641 CW and my printer has been working perfectly fine until this week. &nbsp; It just started printing little color dots all over my paper. &nbsp;It doesn’t matter if I just print in black and white it color. &nbsp; &nbsp;The ink dots are blue, pink and yellow. &nbsp; I have tried doing the cleanings listed in the manual and nothing is helping. &nbsp;&nbsp;</P> Thu, 29 Jun 2023 13:09:36 GMT Leblanc42404 2023-06-29T13:09:36Z https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF641Cw-Color-ink-blots/m-p/425604#M19654 <P>I have a MF641 CW and my printer has been working perfectly fine until this week. &nbsp; It just started printing little color dots all over my paper. &nbsp;It doesn’t matter if I just print in black and white it color. &nbsp; &nbsp;The ink dots are blue, pink and yellow. &nbsp; I have tried doing the cleanings listed in the manual and nothing is helping. &nbsp;&nbsp;</P> Thu, 29 Jun 2023 13:09:36 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF641Cw-Color-ink-blots/m-p/425604#M19654 Leblanc42404 2023-06-29T13:09:36Z https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF641Cw-Color-ink-blots/m-p/425734#M19657 <P>A few questions to start the ball rolling</P><P>Are the installed toner cartridges genuine Canon or third party? If the cartridges are removed, is there a build-up underneath them or on the tray itself? Have the cartridges been recently replaced?</P> Fri, 30 Jun 2023 00:31:17 GMT https://community.usa.canon.com/t5/Office-Printers/imageCLASS-MF641Cw-Color-ink-blots/m-p/425734#M19657 dexman335 2023-06-30T00:31:17Z