PURPOSE: To keep the planeness of a sheet to read an image with a high precision, by raising a suction pressure at the start time of sheet carrying and lowering the suction pressure at the time when it is confirmed that the sheet is carried for a prescribed distance.
CONSTITUTION: When the front end of a storage-type phosphor sheet 10 comes to a position a little before a prescribed position where a laser light 205 scans, air suction with a sufficiently high negative pressure is started in a suction box 203a, and the sheet 10 is brought closely into contact with a perforated belt 201. When it is detected by a detector 214 that the front end of the sheet 10 is irradiated with the laser light 205, the negative pressure of the box 203a is lowered to prevent the vibration of the sheet 10 due to an air sucking blower. When the upper part of a box 203b is covered completely with the sheet 10, suction of the sheet 10 is started, and the sheet 10 brought closely into contact with the belt 201 is carried in a uniform velocity with a high precision while keeping its planeness. Consequently, the image is read with a high precision without the variance of reading because of the planeness of the sheet and carrying under the uniform velocity.
KOBAYASHI RIYUUICHI
SONEZAKI SUMINAO
| JPS5611395A | 1981-02-04 |