https://community.usa.canon.com/t5/Office-Printers/Imageclass-MF665Cdw-email-scans-in-B-amp-W-instead-of-grayscale/m-p/584697#M30574 <P><SPAN>Grayscale scanning to PDF (as opposed to pure black-and-white) is not supported when sending scans via email or saving directly to FTP. Grayscale scanning is only available when using a connected computer. In other cases, the device converts images to black-and-white using an NTSC dithering pattern, which does not produce true grayscale and introduces visible black-and-white artifacts, the pictures are attached.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1.jpg" style="width: 830px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/73134iB6939EC07A41EEBC/image-size/large?v=v2&amp;px=999" role="button" title="1.jpg" alt="1.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2.jpg" style="width: 156px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/73135iFBF1346E55D035B8/image-size/large?v=v2&amp;px=999" role="button" title="2.jpg" alt="2.jpg" /></span></SPAN></P> Fri, 30 Jan 2026 14:55:12 GMT akhalili 2026-01-30T14:55:12Z https://community.usa.canon.com/t5/Office-Printers/Imageclass-MF665Cdw-email-scans-in-B-amp-W-instead-of-grayscale/m-p/584697#M30574 <P><SPAN>Grayscale scanning to PDF (as opposed to pure black-and-white) is not supported when sending scans via email or saving directly to FTP. Grayscale scanning is only available when using a connected computer. In other cases, the device converts images to black-and-white using an NTSC dithering pattern, which does not produce true grayscale and introduces visible black-and-white artifacts, the pictures are attached.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1.jpg" style="width: 830px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/73134iB6939EC07A41EEBC/image-size/large?v=v2&amp;px=999" role="button" title="1.jpg" alt="1.jpg" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2.jpg" style="width: 156px;"><img src="https://community.usa.canon.com/t5/image/serverpage/image-id/73135iFBF1346E55D035B8/image-size/large?v=v2&amp;px=999" role="button" title="2.jpg" alt="2.jpg" /></span></SPAN></P> Fri, 30 Jan 2026 14:55:12 GMT https://community.usa.canon.com/t5/Office-Printers/Imageclass-MF665Cdw-email-scans-in-B-amp-W-instead-of-grayscale/m-p/584697#M30574 akhalili 2026-01-30T14:55:12Z