It is true that ISI paper printing is expensive, but there are ways you can significantly reduce the printing cost or even print your paper for free.

Methods of free or low-cost printing of ISI articles:

Selection of Open Access journals: Some ISI journals operate as Open Access and there is no need to pay for publishing articles in them.
Use of grants and research funds: Some institutions and governmental and non-governmental organizations provide researchers with grants and funds to publish articles in ISI journals.
Sending articles to conferences: You can send your article to conferences related to your field of expertise, and if accepted, your article will be published in the conference proceedings.
Article preprints: You can upload your article preprints to preprint repositories like arXiv for free.
Publishing on a personal or academic website: You can publish your article on your personal or academic website.