Printer and recording medium

A non-transitory computer-readable recording medium, storing a print control program for executing steps on a calculating device provided at a printer comprising:

• a storage device configured to detachably store a print-receiving medium comprising a plurality of identifiers for positioning;
• a feeder configured to feed said print-receiving medium stored in said storage device;
• a printing head configured to perform desired printing on said print-receiving medium fed in a forward direction along a transport direction by said feeder;
• detecting device configured to detect said identifier of said print-receiving medium, disposed on a feeding path of said print-receiving medium by said feeder;
• and said calculating device;
• said steps comprising:
• an instruction input step for inputting an operation instruction for starting print processing;
• a first control step for controlling said feeder so as to start feeding of said print-receiving medium in said forward direction, in accordance with said operation instruction for starting print processing in said instruction input step;
• a detection determining step for determining whether or not said detecting device detects said identifier after feeding of said print-receiving medium in said forward direction was started in said first control step;
• a second control step for controlling said feeder so as to feed said print-receiving medium in a reverse direction that is reverse to said forward direction, and to position a position of said print-receiving medium along said transport direction in a predetermined first initial position in a case that it was determined that said detecting device detects said identifier in said detection determining step;
• a reverse determining step for determining whether or not a predetermined reversibility condition related to a feeding of said print-receiving medium in said reverse direction based on control in said second control step has been satisfied;
• and
• a third control step for controlling said feeder so as to further feed said printer-receiving medium in said forward direction, and to position the position of said printer-receiving medium along said transport direction in a predetermined second initial position when in said reverse determining step it is determined that said reversibility condition has not been satisfied and in said detection determining step it is determined that said detecting device detected said identifier, wherein:
• in said second control step, said feeder is controlled so as to feed said print-receiving medium in said reverse direction and to perform said positioning when in said reverse determining step it is determined that said reversibility condition has been satisfied and in said detection determining step it is determined that said detecting device detected said identifier.