Canon Knowledge Base - Unlock the scanner lock switch (MP810)
Canon PIXMA MP810 Multi-function printer/scanner/copier at Crutchfield
Amazon.com: TacPower USB Printer Cord Cable for Canon PIXMA: MP800, MP800R, MP810, MP830, MP950, MP960, MP970, MP980, MP990
CANON Pixma MP810 Scanner Unit Bulb Lamp Assembly w/ Belt MP 810 | eBay
Canon PGI-5 BLACK Compatible to iP3500/iP3300,iP4300,iP4500,iP5200R/iP5200/iP4200,MP520/MP510,MP610/MP600/MP530,MP800/MP500,MP800R/MP830/ MP810,MP950,MP970/MP960,MX700,MX850 Printers