Canon Mb2140 Service Tool Access

"Tool does not recognize printer after entering service mode."

: Adjusts the printer's regional configuration, which affects cartridge compatibility and language options. How to Enter "Service Mode" Canon Mb2140 Service Tool

For the Canon MB2140 and most MAXIFY series printers, the correct sequence is of the Stop/Reset button while holding down the Power button. "Tool does not recognize printer after entering service mode

(This link is from the search results and serves as an example of the type of available visual guide.) Canon Mb2140 Service Tool