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Automatic Print Wheel Loader

IP.com Disclosure Number: IPCOM000085285D
Original Publication Date: 1976-Mar-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 74K

Publishing Venue

IBM

Related People

Bleau, CD: AUTHOR

Abstract

An automatic print wheel loader is utilized in conjunction with a print wheel printer having replaceable print wheels, each bearing different type fonts.

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Automatic Print Wheel Loader

An automatic print wheel loader is utilized in conjunction with a print wheel printer having replaceable print wheels, each bearing different type fonts.

Upon receiving an electronic input that print wheel 1 should be changed, it is necessary that print wheel 1 be left free in print wheel saddle 2 by translating print wheel motor 3 and ribbon cartridge 4 simultaneously from position A to position B. To accomplish this, the printer is carrier returned and clutch 5 is actuated causing follower 6 to move along lead screw 7 to a position where motor 3 and ribbon 4 can be translated. Clutch 8 is actuated causing wheel carrier 9 to move along lead screw 10 to the empty wheel slot 11, under the control of a lamp photocell sensor 11a.

Half-revolution clutch 12 is actuated, allowing element 13 on follower 6 to descend and translate ribbon cartridge 4 to the lift position under the influence of cam 14 and arm 15. Clutch 5 is actuated moving the motor and ribbon cartridge from position A to position B, under the influence of follower 6. Completion of a full revolution of clutch 12 restores element 13 to its home position.

Removal and insertion of print wheels 1 are accomplished by action of half- revolution clutch 24 upon cam 25 and gripper finger arm 16. Print wheel removal occurs when arm 16 moves through an arc, such as to contact and thus grip print wheel 1 which is free in saddle 2. Return of arm 16 stores the gripped print wheel in finger...