Ecoline printer paper is excellent for hybrid techniques: a draft created with Ecoline can be scanned, printed, and then easily worked on further with Ecoline. However, to continue working on the printed version with Ecoline, the ink must be waterproof.
Not all printers and/or inks are suitable for this. With inkjet printers, it is important to ensure that the ink used is waterproof. With laser printers, the toner is fixed using heat, which makes it waterproof. A sufficiently high temperature is important for this.
We recommend always printing a test page first to check whether the ink on the printout is waterproof before working on it with Ecoline.