Fujitsu Corporation

Masahiko Sakaguchi

Masayoshi Kobayashi

Tsuneyoshi Oohara

Yoshiki Akiyama

Katsumi Inazawa

Tatsuya Ohmido

Ryuuichi Miyaguchi

Hitomi Ono

A magnetic tape apparatus for controlling a running of magnetic tape, and being able to control a cleaning medium to clean a magnetic head. The apparatus including a feed reel shaft and a take-up reel shaft respectively adapted to hold a feed reel and a take-up reel of the cleaning medium; a magnetic head; a control part controlling the feed reel shaft and the take-up reel shaft so as to reel the cleaning medium; and a cleaning section determining part determining a cleaning section on the cleaning medium that is used for a single cleaning step of the magnetic head. The control part controls the feed reel shaft and the take-up reel shaft to clean the magnetic head for the cleaning section by the cleaning medium. Additionally, the control part reduces a tension of the cleaning medium more than that applying in a normal running by independently controlling the feed reel and the take-up reel when the control part runs the cleaning medium to the cleaning section determined by the cleaning section determining part.

Magnetic tape apparatus with cleaning medium and method of controlling same

In a magnetic tape apparatus for controlling a running of a magnetic tape to stop at a reference stop position, a control part controls the feed reel shaft and the take-up reel shaft to reel the magnetic tape and a stop position control part displaces a stop position of the magnetic tape from the reference position wherein the control part activates the stop position control part to displace the stop position when the control part stops running the magnetic tape.

Magnetic tape apparatus and method for controlling the running of a magnetic tape to stop at a stop position

A device for receiving a tape cartridge having a reel and a record tape winded around the reel where the record tape has a mounting unit attached to one end thereof includes an engaging unit which engages with the mounting unit, a threader arm which carries the engaging unit together with the mounting unit along a predetermined path to thread the record tape in the device during a threading operation and to unthread the record tape from the device during an unthreading operation, a reel motor which drives the reel of the tape cartridge, and a control unit which controls the reel motor to adjust tension in the record tape during the threading operation and the unthreading operation.

Magnetic tape device with mechanism for controlling threading operation

A library apparatus having a motor driving control circuit including a processor, a motor driver circuit, a relay, a motor abnormal condition detection circuit, a current control circuit, an excess current detection circuit, and an abnormal current monitor circuit. The motor abnormal condition detection circuit is connected to the motor driver circuit, and detects an abnormal condition of at least one of the motor and the motor driver circuit. Upon detecting an abnormal condition, the motor abnormal condition detection circuit outputs a motor abnormal condition detection signal which prompts the current control circuit to regulate the current flowing through the motor driver circuit. If the current control circuit is unsuccessful, the excess current detection circuit outputs an excess current detection signal which triggers the relay to close the power source circuit of the motor driver circuit.

Growing community of inventors

Hyogo, Japan

Masahiko Sakaguchi