Browse Prior Art Database

Wheel Printer

IP.com Disclosure Number: IPCOM000093881D
Original Publication Date: 1966-Mar-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Bowdle, RR: AUTHOR

Abstract

A single type wheel page printer is shown. Type wheel 10 has the type faces arranged in a spiral whose pitch is equal to the pitch of lead screw 2. Wheel 10 is driven by a suitable stepping motor which is coupled to drive shaft 14. As wheel 10 rotates it moves to the right since it is threaded on the lead screw. During a printing operation lead screw 2 is held stationary and each cycle starts at an index position 16. Wheel 10 is stepped around to the desired character. At this time, hammer roll 18 is actuated to bring the printing sheet into contact with the type face. During the remainder of the print cycle, wheel 10 is advanced to the index 16. Thus, one character is printed for each revolution of wheel 10.

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Wheel Printer

A single type wheel page printer is shown. Type wheel 10 has the type faces arranged in a spiral whose pitch is equal to the pitch of lead screw 2. Wheel 10 is driven by a suitable stepping motor which is coupled to drive shaft
14. As wheel 10 rotates it moves to the right since it is threaded on the lead screw. During a printing operation lead screw 2 is held stationary and each cycle starts at an index position 16. Wheel 10 is stepped around to the desired character. At this time, hammer roll 18 is actuated to bring the printing sheet into contact with the type face. During the remainder of the print cycle, wheel 10 is advanced to the index 16. Thus, one character is printed for each revolution of wheel 10. After a line of printing is completed, driving rods 20 are held stationary and lead screw 2 is driven through shaft 22 to return the wheel 10 to the left.

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