A card reader for use with a card formed in a substantially rectangular shape which is conveyed in its short widthwise direction and is processed, comprising: a card conveying mechanism for conveying the card; a conveying passage where the card is conveyed; a magnetic head which is capable of abutting a magnetic stripe formed on the card for performing at least one of reading of magnetic data recorded on the card and recording of magnetic data on the card; wherein the card conveying mechanism comprises a drive source, and a first conveying roller and a second conveying roller; wherein the first conveying roller is disposed on one end side in a widthwise direction of the conveying passage which is perpendicular to a conveying direction of the card so as to contact with a front face or a rear face on one end side in a longitudinal direction of the card; and wherein the second conveying roller is disposed on the other end side in the widthwise direction of the conveying passage so as to contact with the front face or the rear face on the other end side in the longitudinal direction of the card; characterized in that a head moving mechanism is provided for moving the magnetic head in the widthwise direction of the conveying passage; an abutting part is provided with which one end of the card in the conveying direction of the card is abutted, wherein the first and second conveying rollers (32A, 32B) convey the card until the one end of the card in the conveying direction of the card is abutted with the abutting part; and the card conveying mechanism comprises a first torque limiter which is disposed in a power transmission path from the drive source to the first conveying roller, and a second torque limiter which is disposed in a power transmission path from the drive source to the second conveying roller. a card conveying mechanism for conveying the card; a conveying passage where the card is conveyed; a magnetic head which is capable of abutting a magnetic stripe formed on the card for performing at least one of reading of magnetic data recorded on the card and recording of magnetic data on the card; wherein the card conveying mechanism comprises a drive source, and a first conveying roller and a second conveying roller; wherein the first conveying roller is disposed on one end side in a widthwise direction of the conveying passage which is perpendicular to a conveying direction of the card so as to contact with a front face or a rear face on one end side in a longitudinal direction of the card; and wherein the second conveying roller is disposed on the other end side in the widthwise direction of the conveying passage so as to contact with the front face or the rear face on the other end side in the longitudinal direction of the card; characterized in that a head moving mechanism is provided for moving the magnetic head in the widthwise direction of the conveying passage; an abutting part is provided with which one end of the card in the conveying direction of the card is abutted, wherein the first and second conveying rollers (32A, 32B) convey the card until the one end of the card in the conveying direction of the card is abutted with the abutting part; and the card conveying mechanism comprises a first torque limiter which is disposed in a power transmission path from the drive source to the first conveying roller, and a second torque limiter which is disposed in a power transmission path from the drive source to the second conveying roller.