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公开(公告)号：KR860001973B1
公开(公告)日：1986-11-07
申请号：KR840004545
申请日：1984-07-31
Applicant: IBM
Inventor： FIELD THOMAS RAY , SHAKIB IRAJ DAVID , HUFHES FRANK MARION , VITEK JR EDWARD JOHN
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公开(公告)号：DE3468368D1
公开(公告)日：1988-02-11
申请号：DE3468368
申请日：1984-08-10
Applicant: IBM
Inventor： BOBART KEVIN LEE , SAMSON ROBERT SAUL , SHAKIB IRAJ DAVID
Abstract: An LED/photodetector structure is disclosed positioned to cooperate with a daisy wheel print element of a daisy wheel printer and a light interrupter such that under microprocessor control, a stepping motor will rotate and home the daisy wheel print element, sense the escapement pitch corresponding to that element, sense the font weight or impact force level associated with that print element and then cause the carrier to be translated to the left frame, thereby engaging the light beam interrupter with the left frame and forcing it into the light beam indicating the presence or the carrier at a known spacial position for homing of the carrier position. The data carried by the print element in the form of apertures formed in the hub thereof and are all spacially positioned within one semicircular portion of the print element hub.
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公开(公告)号：FI61426C
公开(公告)日：1982-08-10
申请号：FI753611
申请日：1975-12-19
Applicant: IBM
Inventor： ABELL JR WILLIAM A , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：NO142657B
公开(公告)日：1980-06-16
申请号：NO754353
申请日：1975-12-22
Applicant: IBM
Inventor： ABELL WILLIAM ALBERTUS JR , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：AU541438B2
公开(公告)日：1985-01-10
申请号：AU7737281
申请日：1981-11-11
Applicant: IBM
Inventor： MOTT WILLIAM EDWARD , SHAKIB IRAJ DAVID
Abstract: A replaceable font module (8) for a matrix printer includes an interrogable storage device (12) containing information representing graphic patterns and is connected to cooperate with a corresponding receptacle (100). The module (8) and receptacle (100) are configured to allow insertion without intense operator attention by virtue of a camming surface (48) on the module that cooperates with reference edge (154) of receptacle (100) to provide an undulating but positive latching motion in response to a simple operator insertion motion. As a part of the latching motion, a wiping action of spring contact (134) along contact pad (22) to assure a high quality contact.
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Patent Agency Ranking
公开(公告)号：NO142657C
公开(公告)日：1980-09-24
申请号：NO754353
申请日：1975-12-22
Applicant: IBM
Inventor： ABELL WILLIAM ALBERTUS JR , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：DE2429931A1
公开(公告)日：1975-01-09
申请号：DE2429931
申请日：1974-06-21
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID
Abstract: A carrier for a printer, having a single type element, is disclosed. The selection apparatus contained within the carrier is one whereby only a rotary power force plus control signals need be introduced into the carrier. The selection apparatus is comprised of barrel cams having a plurality of channels formed into the periphery of the barrel cams to cause lateral displacement thereof on their drive shaft. The lateral displacement of the barrel cams is converted into a linear motion which is in turn transmitted and converted into rotary motion to position the type element about its rotate and tilt axes. The controls for transmitting signals to the carrier are pneumatic and the pneumatic impulses received by the carrier logic block and actuator blocks activate mechanical latches to insert selector pins into the grooves of the barrel cams. A dual rack and single pinion arrangement is disclosed to convert the linear motion to rotary motion of the type element.
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公开(公告)号：FI61426B
公开(公告)日：1982-04-30
申请号：FI753611
申请日：1975-12-19
Applicant: IBM
Inventor： ABELL JR WILLIAM A , FIELD THOMAS RAY , HAUS RALPH ANTHONY , SHAKIB IRAJ DAVID
Abstract: Disclosed is a mechanism for shifting the rack of a selection mechanism for a single element printer from one position to another in timed relationship to the translation of a barrel cam which provides the necessary mechanical input to control the amount of rotation of the typehead. The control of the rack shift mechanism is a cam arrangement operated in timed relationship with the translating barrel cam to provide for the shifting of the rack at the beginning of each print cycle, if necessary, and the retaining of the rack in its shifted position at the completion of the cycle, thereby eliminating the necessity to provide for the time required to shift the rack back to its home position at the end of the cycle. The elimination of the restore operation of the rack provides more time during the cycle to operate the selection mechanism and accomplish printing or conversely provides for a smaller amount of time being required for the necessary functions thereby providing the capability of operating the remainder of the mechanism at a faster rate.
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公开(公告)号：CH614504A5
公开(公告)日：1979-11-30
申请号：CH1499376
申请日：1976-11-29
Applicant: IBM
Inventor： SHAKIB IRAJ DAVID
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