The aim of this study is to introduce new (presumed) generalized fractional integral operators involving
I
-function as a kernel. In addition, two theorems have been developed under these operators that provide an image formula for this generalized
M
-series and also to study the different properties of the generalized
M
-series. The corresponding assertions in terms of Euler and Laplace transform methods are presented. Due to the general nature of the
I
-function and the generalized
M
-series, a number of results involving special functions can be achieved only by making appropriate values for the parameters.