Printer and method of printing using the same

A method of printing on a recording medium by a printer, the printer comprising:

• a recording means for recording on said recording medium by supplying energy to said transfer medium;
• a transfer medium reversely conveying amount information management means for managing the conveying amount information of said transfer medium in the direction reverse to the normal direction toward said recording means;
• and
• a transfer medium conveying means which conveys said transfer medium in said normal direction and reverse direction and conveys said transfer medium based on the reversely conveying amount information managed by said transfer medium reversely conveying amount information management means when said transfer medium is conveyed in the reverse direction, wherein the conveying amount of the transfer medium in the reverse direction is performed to an extent such that previously used portions of the transfer medium are conveyed past said recording means in the reverse direction, said method comprising repeating the steps of:
• performing a given length of printing by said recording means on said recording medium which is conveyed in said normal direction while conveying said transfer medium in said normal direction by said transfer medium conveying means;
• then conveying said transfer medium in said reverse direction by said transfer medium conveying means according to a reversely conveying amount information managed by said transfer medium reversely conveying amount information management means;
• and
• thereafter performing said given length of printing on said recording medium while conveying said transfer medium in said normal direction again.

A printer comprising:

• a recording means for recording a symbol on said recording medium by supplying energy to said transfer medium;
• a transfer medium reversely conveying amount information management means for managing the conveying amount information of said transfer medium in the direction reverse to said normal direction toward said recording means;
• and
• a transfer medium conveying means which conveys said transfer medium in said normal direction and reverse direction and conveys said transfer medium based on said reversely conveying amount information managed by said transfer medium reversely conveying amount information management means when said transfer medium is conveyed in said reverse direction, said conveying amount of the transfer medium in the reverse direction being performed to an extent such that previously used portions of the transfer medium are conveyed past the recording means in the reverse direction;
• a verifying means for verifying the content of said symbol recorded on said recording medium by said recording means;
• and
• an invalid index forming means for forming an invalid index on said recording medium where said verifying means detects a defect in said recorded content.