A decorator (10) for printing onto cylindrical structures (18) has a plurality of inkers (12). Each inker (12) has a pair of opposing frame plates (40, 48). A printing plate (204) is affixed to a printing plate cylinder (200) carried by a rotational printing plate cylinder shaft (202). The printing plate shaft (202) is disposed between the opposing frame plates (40, 48). A main shaft (38) supports the inker (12) on the decorator (10) such that the pair of opposing frame plates (40, 48) are slidable along a length of the main shaft (38). A lateral adjustment servomotor (220) acts on a corresponding inker (212) to impart a movement by the inker (12) along the length of the main shaft (38).

Printer circuits and components for detecting a media low condition on a printer are provided. The printer circuit comprises a motor coupled to a platen roller, a current sense resistor coupled in series with the motor, a current measuring circuit comprising an operational amplifier circuit configured to receive input voltage and output voltage of the current sense resistor, generate a differential voltage based at least in part on the input voltage and the output voltage, and convert the differential voltage to a current, and an analog-to-digital converter and control mechanism configured to receive the current from the current measuring circuit and control operation of the motor based at least in part on the current.

A decorator (10) for printing onto cylindrical structures (18) has a plurality of inkers (12). Each inker (12) has a pair of opposing frame plates (40, 48). A printing plate (204) is affixed to a printing plate cylinder (200) carried by a rotational printing plate cylinder shaft (202). The printing plate shaft (202) is disposed between the opposing frame plates (40, 48). A main shaft (38) supports the inker (12) on the decorator (10) such that the pair of opposing frame plates (40, 48) are slidable along a length of the main shaft (38). A lateral adjustment servomotor (220) acts on a corresponding inker (212) to impart a movement by the inker (12) along the length of the main shaft (38).