Browse Prior Art Database

Printer Carrier

IP.com Disclosure Number: IPCOM000061328D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Hunt, RE: AUTHOR [+2]

Abstract

The figure illustrates a printer carrier generally designated 1. Molded into the carrier are split leadscrew follower grooves 2 and 3 which track and guide carrier 1 along leadscrew 4. Slot 13 extends almost through the body of the carrier, forming a thin hinge selection 14 so grooves 2 and 3 can be biased against leadscrew 4 by extension springs 11 and 12. Ink jet head 9 is mounted in cylindrical cavity 15 and is secured by screw 10. To select one of two paper feed hoppers, the carrier escapes to the extreme left margin for the lower sheet stack 23 or to the right margin for upper sheet stack 25. For example, to select stack 23, carrier 1 escapes into left overbank where cam surface 16 rotates lever 17, attached shaft 18 and leaf spring comb 19 counterclockwise out of the path of clamp bar 20.

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Printer Carrier

The figure illustrates a printer carrier generally designated 1. Molded into the carrier are split leadscrew follower grooves 2 and 3 which track and guide carrier 1 along leadscrew 4. Slot 13 extends almost through the body of the carrier, forming a thin hinge selection 14 so grooves 2 and 3 can be biased against leadscrew 4 by extension springs 11 and 12. Ink jet head 9 is mounted in cylindrical cavity 15 and is secured by screw 10. To select one of two paper feed hoppers, the carrier escapes to the extreme left margin for the lower sheet stack 23 or to the right margin for upper sheet stack 25. For example, to select stack 23, carrier 1 escapes into left overbank where cam surface 16 rotates lever 17, attached shaft 18 and leaf spring comb 19 counterclockwise out of the path of clamp bar 20. Another cam surface 21 hits tab 22 on print bar 26, rotating it clockwise and out of the way of paper clam bar 20. Further travel of carrier 1 to the left, rotates crank arm 24, engaging the sheet feed mechanism clutch (not shown). The right side clutch and sheet feed mechanism can be actuated in a similar manner. A low-cost single-piece molded printer carrier is provided which will hold and escape an ink jet nozzle for serial character printing on a sheet of paper. It uses a leadscrew and a groove in the printer frame to guide its travel, thus requiring no conventional guide rods. The molded split leadscrew follower will accurately track an escapement lead...