Device and process for intermediate stacking of items

A device for the intermediate stacking of items (SE), in particular in letter processing facilities, comprising a stacking roller (SR), a stacking carriage (SW), an underlying belt (UB), and a separating device, in which the stacking roller (SR) is arranged on the stacking carriage (SW) and in which a pressure measuring device is provided near the stacking roller for measuring the pressure exerted by the stack on the pressure measuring device, characterized in that a device is provided for detecting possible slanted positions of the stack of items (ST), once a slanted position is detected, the stacking carriage (SW) and/or the underlying belt (UB) are moved until the slanted position is corrected, the stacking carriage (SW) is moved along the underlying belt (UB) until the stack of items (ST) exerts a certain pressure onto the pressure measuring device, provided the device does not signal a slanted position.