Browse Prior Art Database

Document Insertion Device

IP.com Disclosure Number: IPCOM000051402D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 60K

Publishing Venue

IBM

Related People

Kanno, T: AUTHOR

Abstract

The subject front insertion Document Insertion Device (DID) 1, in which a cut form 2 is inserted through a chute 3, is attachably mounted on a printer 20 having a print head 21, a platen 22, a set of pressure rollers 23, which are not pressed against the platen 22 when a continuous form is used or before a cut form is inserted, and a continuous form-feeding device 24. This DID permits a great reduction of an unprintable area at the top of the cut form.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 63% of the total text.

Page 1 of 2

Document Insertion Device

The subject front insertion Document Insertion Device (DID) 1, in which a cut form 2 is inserted through a chute 3, is attachably mounted on a printer 20 having a print head 21, a platen 22, a set of pressure rollers 23, which are not pressed against the platen 22 when a continuous form is used or before a cut form is inserted, and a continuous form-feeding device 24. This DID permits a great reduction of an unprintable area at the top of the cut form.

As shown in Fig. 1, the cut form inserted into the chute 3 is fed down through a pair of feed rollers 4 and 5, and then a set of the pressure rollers 23 are pressed against the platen 22. Initially, a thin form clamp 6, attached at the outer end of an extension belt 7, at the home position (Fig. 1), opens its jaws 8 and 9 about 180 degrees against the force of clamp springs 10 (Fig. 2).

When a photocell 11 detects the top edge of the inserted cut form, it makes the cut form stop from further advancement. Then the clamp 6 is actuated to clamp the top edge of the cut form in its jaws 8 and 9 (Fig. 2).

After this, the cut form is advanced again by the feed rollers 4 and 5. The top edge of the cut form is allowed to go down through the feed rollers 4 and 5 since it has already been clamped by the jaws 8 and 9.

During this advancement, the belt 7, which is normally forced in wind-up by any suitable spring 14 and whose outer end 15 is fixed on the frame, is unwound from a drum 12 through a guide...