Patent ID: 6223001
Filing Date: 2001-04-24
Classification: G03B

Abstract:
A method for checking magnetic heads which are respectively formed by a recording head and reading head pair, said recording head recording magnetic information onto a strip-shaped magnetic material which is being conveyed, and said reading head reading magnetic information from the strip-shaped magnetic material, said method comprising:while conveying the strip-shaped magnetic material in a conveying direction, recording checking data for checking operation of said recording head and said reading head on a predetermined position of a conveying direction leading end portion of the strip-shaped magnetic material by said recording head before processing of the strip-shaped magnetic material, and after said recording and while still conveying the strip-shaped magnetic material in the conveying direction, reading the checking data recorded on the strip-shaped magnetic material, by said reading head which is disposed at a downstream side of said recording head in the conveying direction of the strip-shaped magnetic material; andchecking whether said recording head and said reading head are operating appropriately by comparing the read data and the checking data for checking;wherein said checking data does not affect recorded magnetic information regarding any of said strip-shaped magnetic material and a photography condition.