In one example, a printed output inspection unit (300) for a web printing system (100). The inspection unit has a first L-inverter (310) disposed in a first plane (315), and a second L-inverter (320) disposed in a second plane (325) offset from the first plane in a direction orthogonal to the first plane. The inspection unit (300) also has an inspection area (340,350) between the first and second L-inverters to view a side (307,309) of a web substrate (305), the inspection area extending in the direction orthogonal to the first plane.

In one example, a printed output inspection unit (300) for a web printing system (100). The inspection unit has a first L-inverter (310) disposed in a first plane (315), and a second L-inverter (320) disposed in a second plane (325) offset from the first plane in a direction orthogonal to the first plane. The inspection unit (300) also has an inspection area (340,350) between the first and second L-inverters to view a side (307,309) of a web substrate (305), the inspection area extending in the direction orthogonal to the first plane.

In one example, a printed output inspection unit (300) for a web printing system (100). The inspection unit has a first L-inverter (310) disposed in a first plane (315), and a second L-inverter (320) disposed in a second plane (325) offset from the first plane in a direction orthogonal to the first plane. The inspection unit (300) also has an inspection area (340,350) between the first and second L-inverters to view a side (307,309) of a web substrate (305), the inspection area extending in the direction orthogonal to the first plane.

A device including a computing unit that is adapted to read a pattern of transfer portions to be realized by means of a printing process prior to operation of the device and to evaluate various options as to input of at least one foil web to the device and reuse of a length of foil web in the device so as to determine that option involves the most efficient use of the foil for realizing the pattern, so that output is obtained that is suitable to be used for realizing optimal control of the device.

A device including a computing unit that is adapted to read a pattern of transfer portions to be realized by means of a printing process prior to operation of the device and to evaluate various options as to input of at least one foil web to the device and reuse of a length of foil web in the device so as to determine that option involves the most efficient use of the foil for realizing the pattern, so that output is obtained that is suitable to be used for realizing optimal control of the device.

A device including a computing unit that is adapted to read a pattern of transfer portions to be realized by means of a printing process prior to operation of the device and to evaluate various options as to input of at least one foil web to the device and reuse of a length of foil web in the device so as to determine that option involves the most efficient use of the foil for realizing the pattern, so that output is obtained that is suitable to be used for realizing optimal control of the device.