US3673603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating carriage for electrographic printing
Assignee: Xerox Corp
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Filing: 1970-06-15
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Granted: 1972-06-27
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Expires: 1990-06-15
Abstract
Abstract Printing apparatus employing a pair of reciprocating print heads, one of which traverses the entire print field in a record mode while the other one moves in the opposite direction in an inoperative mode. The print heads are supported for movement on separate, spaced apart guide rails such that the pens thereof print along the same line relative to a moving recording web. To this end, structure is provided for causing movement of the nonprinting pen out of the path of travel of the other pen as well as disengagement from the recording medium.
Inventors
- 👤 John L Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:15
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/14; G03; G03G; G03G15/00; G03G15/22; G03G15/32
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
151 words
Print head structure comprising: a base member adapted for reciprocating movement on a guide rail; a first member pivotably supported on said base member; a second member pivotably supported by said first member; a recording pen carried by said second member; means carried by said base member cooperating with said second member in response to pivoting of said first member to cause pivoting of said pen into an inoperative position; cam structure pivotably secured to said base member; said second member comprising a cam follower cooperating with said cam structure to effect pivoting of said first member when said cam is acted on by a force external to said print head structure; spring means for urging said members in directions opposite to that caused by the interaction of said cam and cam follower to thereby maintain said cam in a recording position when said cam and cam follower are not interacting.
Claim 2
Dependent Claim
151 words
Print head structure comprising: a base member adapted for reciprocating movement on a guide rail; a first member pivotably supported on said base member; a second member pivotably supported by said first member; a recording pen carried by said second member; means carried by said base member cooperating with said second member in response to pivoting of said first member to cause pivoting of said pen into an inoperative position; cam structure pivotably secured to said base member; said second member comprising a cam follower cooperating with said cam structure to effect pivoting of said first member when said cam is acted on by a force external to said print head structure; spring means for urging said members in directions opposite to that caused by the interaction of said cam and cam follower to thereby maintain said cam in a recording position when said cam and cam follower are not interacting.
Claim 3
Dependent Claim
63 words
Printing head structure comprising: a base member; a carriage member pivotably supported by said base member; a recording pen; means for pivotably attaching said pen to said carriage; means carried by said base member cooperating with said last-mentioned means to cause pivoting thereof when said carriage member is pivoted, and; means carried by said base member for effecting movement of said carriage member.
Claim 4
Dependent Claim
63 words
Printing head structure comprising: a base member; a carriage member pivotably supported by said base member; a recording pen; means for pivotably attaching said pen to said carriage; means carried by said base member cooperating with said last-mentioned means to cause pivoting thereof when said carriage member is pivoted, and; means carried by said base member for effecting movement of said carriage member.
Claim 5
Dependent Claim
33 words
Structure according to claim 2 including means for normally urging said carriage member and said pen-attaching means in directions opposing the directiOns of motion imparted by said means carried by said base member.
Claim 6
Dependent Claim
63 words
Structure as best described in claim 3 wherein, each print head structure comprises, a base member encompassing one of said spaced apart means; a frame member pivotably supported by said base member; and a pen holder pivotably carried by said frame member, and; means integral with said base member cooperating with said holder to effect pivoting thereof upon pivoting of said frame member.
Claim 7
Dependent Claim
112 words
Electrographic printing apparatus comprising: means for moving a recording web sequentially past a recording station, developing station and a fusing station; at least one print head structure including a pen having a plurality of styli; a pen holder; a frame member supporting said pen holder; a base member pivotally supporting said frame member; means supporting at least one print head structure for reciprocating movement transverse of said web; a motor; a rocker arm movably carried by said base member for movement therewith and engaging said frame member for effecting pivoting thereof; and means coupling said rocker arm and said motor, said rocker arm being actuatable by said motor and said coupling means.
Claim 8
Dependent Claim
112 words
Electrographic printing apparatus comprising: means for moving a recording web sequentially past a recording station, developing station and a fusing station; at least one print head structure including a pen having a plurality of styli; a pen holder; a frame member supporting said pen holder; a base member pivotally supporting said frame member; means supporting at least one print head structure for reciprocating movement transverse of said web; a motor; a rocker arm movably carried by said base member for movement therewith and engaging said frame member for effecting pivoting thereof; and means coupling said rocker arm and said motor, said rocker arm being actuatable by said motor and said coupling means.
Claim 9
Dependent Claim
40 words
Structure as specified in claim 5, including means for pivotally mounting said pen holder to said frame member and means carried by said base member for causing pivoting of said pen holder in response to pivoting of said frame member.
Claim 10
Dependent Claim
58 words
Structure as specified in claim 5 including means for pivotally mounting said pen holder to said frame member for movement in a first direction when said frame member pivots, pivoting of said frame member being in a different direction from said first direction; and means for effecting pivoting of said pen holder when the frame member is pivoted.
Claim 11
Dependent Claim
114 words
Printing apparatus comprising: means for moving a recording web past a recording station; a pair of printhead structures including recording pens; spaced apart means supporting said printhead structures for reciprocating movement transverse of said web; a reversible motor; means for positioning one of said pens out of contact with said recording medium and out of the path of travel of the other printhead structure; means for simulteneously positioning the other of said pens in contact with said recording medium; means supported by said printhead structures coupled to said reversible motor for simultaneously moving said printhead structures in opposite directions across substantially the full width of said recording medium and for actuating said positioning means.
Claim 12
Dependent Claim
114 words
Printing apparatus comprising: means for moving a recording web past a recording station; a pair of printhead structures including recording pens; spaced apart means supporting said printhead structures for reciprocating movement transverse of said web; a reversible motor; means for positioning one of said pens out of contact with said recording medium and out of the path of travel of the other printhead structure; means for simulteneously positioning the other of said pens in contact with said recording medium; means supported by said printhead structures coupled to said reversible motor for simultaneously moving said printhead structures in opposite directions across substantially the full width of said recording medium and for actuating said positioning means.
Claim 13
Dependent Claim
61 words
Structure as described in claim 8 wherein, each printing head structure comprises: a base member encompassing one of said spaced apart means; a frame member pivotably supported by said base member; a pen holder pivotably carried by said frame member, and; means integral with said base member cooperating with said holder to effect pivoting thereof upon pivoting of said frame member.
Claim 14
Dependent Claim
62 words
Structure as specified in claim 9 wherein, said means for positioning said other of said pens in contact with said recording medium comprises a plurality of bias springs normally urging said frame member and said pen holder in opposition to the direction of movement caused by said means for positioning said one of said pens out of contact from said recording medium.
Claim 15
Dependent Claim
36 words
Structure as specified in claim 10 wherein, said means supported by each printhead structure comprises a rocker arm and a cable attached thereto, said rocker arm serving to cam said frame member to effect pivoting thereof.
Claim 16
Dependent Claim
62 words
Structure as specified in claim 9, including bearing structure disposed in said base member, and wherein said printhead supporting means comprises a guide rail having a hexagonal shape in cross section, said bearing structure including members in engagement with three sides of said guide rail thereby constituting a three-point suspension arranGement for maintaining parallelism between the printhead structure and the recording medium.
Claim 17
Dependent Claim
15 words
Structure as specified in claim 12, including means for compensating for bearing and support wear.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |