A system for making commercial transactions through a cheque, said system comprising: - a device for reading and scanning said cheque in order to get information useful for a commercial transaction, said device for reading and scanning said cheque comprising means for reading and scanning a front and a back image of said cheque, means for reading and scanning an optical or magnetic code of said cheque, said information comprising said front image, said back image and said optical or magnetic code of said cheque, said device for reading and scanning said cheque having an IP address; - a user device configured to conduct said commercial transaction using said information; - interface means, in particular a connection, between said device for reading and scanning said cheque and said user device, wherein: - said device for reading and scanning said cheque comprises a software interface adapted to exchange data and/or said information with said user device through said interface means and via an HTTP or HTTPS protocol, and an internal web server including an internal web site comprising a sequence of web pages;- said interface means are configured to transmit said internal web site to said user device; - said user device comprises a web browser or a specific application pointing to said IP address of said device for reading and scanning said cheque and means for reproducing on said web browser or said specific application said sequence of web pages adapted to control the functions of said device for reading and scanning said cheque through said interface means and said HTTP or HTTPS protocol, wherein the functions of said device for reading and scanning said cheque comprise: - configuring said device for reading and scanning said cheque; - scanning said front image, said back image and said optical or magnetic code of said cheque to obtain said information; - reading an optical and/or magnetic code of said cheque; - commanding a printing operation to be executed by a stamp or inkjet device of said device for reading and scanning said cheque; - specifying an e-mail address where to send said information. - a device for reading and scanning said cheque in order to get information useful for a commercial transaction, said device for reading and scanning said cheque comprising means for reading and scanning a front and a back image of said cheque, means for reading and scanning an optical or magnetic code of said cheque, said information comprising said front image, said back image and said optical or magnetic code of said cheque, said device for reading and scanning said cheque having an IP address; - a user device configured to conduct said commercial transaction using said information; - interface means, in particular a connection, between said device for reading and scanning said cheque and said user device, wherein: - said device for reading and scanning said cheque comprises a software interface adapted to exchange data and/or said information with said user device through said interface means and via an HTTP or HTTPS protocol, and an internal web server including an internal web site comprising a sequence of web pages;- said interface means are configured to transmit said internal web site to said user device; - said user device comprises a web browser or a specific application pointing to said IP address of said device for reading and scanning said cheque and means for reproducing on said web browser or said specific application said sequence of web pages adapted to control the functions of said device for reading and scanning said cheque through said interface means and said HTTP or HTTPS protocol, wherein the functions of said device for reading and scanning said cheque comprise: - configuring said device for reading and scanning said cheque; - scanning said front image, said back image and said optical or magnetic code of said cheque to obtain said information; - reading an optical and/or magnetic code of said cheque; - commanding a printing operation to be executed by a stamp or inkjet device of said device for reading and scanning said cheque; - specifying an e-mail address where to send said information.