Patent ID: 8730283

Claim:
A credential processing device comprising: a processing path; a print head; a head lift assembly configured to move the print head relative to the processing path; a transport mechanism comprising one or more transport feed rollers configured to feed individual substrates along the processing path; a first motor configured to drive the one or more transport feed rollers; a substrate input comprising an input feed roller configured to feed the individual substrates from a supply to the transport mechanism; and an input feed mechanism comprising an activated state, in which the input feed roller is mechanically coupled to the first motor, and a deactivated state, in which the input feed roller is mechanically decoupled from the first motor; wherein: movement of the print head relative to the processing path mechanically drives the input feed mechanism between the activated and deactivated states; and the input feed mechanism is placed in the activated state responsive to the print head being in a first position relative to the processing path, and the input feed mechanism is placed in the deactivated state responsive to the print head being in a second position relative to the processing path.