公开(公告)号：AU554577B2

公开(公告)日：1986-08-28

申请号：AU8899282

申请日：1982-10-04

Applicant: IBM

Inventor： CAVILL BARRY RICHARD ,  DODGEN DAVID FRED

IPC: B41J19/14 ,  B41J19/18 ,  B41J29/38 ,  B41J29/50 ,  G05B19/23 ,  G05B19/416

Abstract: A control system for a bidirectional printer having a print head carriage movable at different speeds on different printing lines provides for equal stopping distance in the margin at both high and low speed operation. This is accomplished by delaying the initiation of stopping carriage motion when printing at low speed so that the carriage travels farther into the margin and this distance is controlled so as to be equal to the travel distance at the end of a line printed at high speed.

公开(公告)号：DE3068225D1

公开(公告)日：1984-07-19

申请号：DE3068225

申请日：1980-09-25

Applicant: IBM

Inventor： CAVILL BARRY RICHARD ,  STEUP ROBERT BRUCE

IPC: G06K15/16 ,  G06F9/06

Abstract: The arrangement according to the invention is provided with facilities for detecting emitter changes that have occurred during operating intervals. in a typical operation, a microprocessor (210) initiates a command to a moving assembly (170), such as a forms feed assembly, then once the operation is initiated the microprocessor transfers to other responsibilities, meanwhile periodically checking the status of the forms feed assembly. The forms feed assembly supplies emitter signals to the processor which are utilized by the microprocessor to determine whether or not any emitter changes have occurred during the intervals between the checking operations. The microprocessor has a stored data table and logic responsive to emitter signal conditions that had previously occurred (WAS) and that is further responsive to emitter signals that are presently occurring (IS) to supply an output in numbers of emitters indicative of both the extent and direction of movement of the assembly during the intervening interval.

公开(公告)号：BR8205680A

公开(公告)日：1983-09-20

申请号：BR8205680

申请日：1982-09-29

Applicant: IBM

Inventor： CAVILL BARRY RICHARD ,  DODGEN DAVID FRED

IPC: B41J19/14 ,  B41J19/18 ,  B41J29/38 ,  B41J29/50 ,  G05B19/23 ,  G05B19/416 ,  G06K15/00

Abstract: A control system for a bidirectional printer having a print head carriage movable at different speeds on different printing lines provides for equal stopping distance in the margin at both high and low speed operation. This is accomplished by delaying the initiation of stopping carriage motion when printing at low speed so that the carriage travels farther into the margin and this distance is controlled so as to be equal to the travel distance at the end of a line printed at high speed.

公开(公告)号：AU8899382A

公开(公告)日：1983-04-21

申请号：AU8899382

申请日：1982-10-04

Applicant: IBM

Inventor： BIGBIE SAMUEL EUGENE ,  CAVILL BARRY RICHARD ,  DODGEN DAVID FRED ,  NAWY ALBERT A

IPC: B41J29/46 ,  B41J19/18 ,  H02P23/00 ,  B41J29/38

Abstract: A control system for a bidirectional printer having a print head carriage movable at different speeds on different printing lines employs a microcomputer which generates a desired velocity profile for the carriage motion. This desired velocity profile is continuously compared with the actual velocity and the error voltage generated is used to control pulse width modulator circuitry which supplies driving power to carriage drive motor.

公开(公告)号：DE3370911D1

公开(公告)日：1987-05-14

申请号：DE3370911

申请日：1983-06-01

Applicant: IBM

Inventor： CAVILL BARRY RICHARD ,  SCHULZ RAYMOND ANDREW

IPC: B41J19/18 ,  B41J29/38 ,  G05B19/23 ,  H02P7/00 ,  B41J19/20 ,  G05D13/62

公开(公告)号：DE3274705D1

公开(公告)日：1987-01-22

申请号：DE3274705

申请日：1982-08-25

Applicant: IBM

Inventor： CAVILL BARRY RICHARD

IPC: B41J29/46 ,  B41J19/18 ,  B41J19/30 ,  H02P1/18 ,  H02P23/00 ,  H02P29/00 ,  H02P7/00 ,  G05D13/62

Abstract: In a control system for a bidirectional printer capable of printing at different speeds on different lines, stored values representing the ideal velocities during the acceleration and deceleration of the print carriage for each direction and speed are compared with the actual values and any resulting difference is used to move the carriage velocity toward the ideal value.

公开(公告)号：DE3066703D1

公开(公告)日：1984-03-29

申请号：DE3066703

申请日：1980-09-25

Applicant: IBM

Inventor： BROWN EARL TOLLIVER ,  CAVILL BARRY RICHARD

IPC: B41J33/14 ,  B41J29/38 ,  B41J33/32 ,  B41J33/34 ,  B41J33/51 ,  B41J33/60 ,  B41J35/36

Abstract: A microcomputer controls a ribbon drive assembly in a high speed wire matrix printer to eliminte ribbon slack, to insure proper ribbon positioning and to conduct diagnostics in conjunction with turning on the printer such as start-up time each day and after replacement of the ribbon with a new ribbon, the diagnostics checking to be sure that a ribbon is actually in the proper position, that it is threaded across the print line and also checking for proper operation of the ribbon drive, logic, and electronics. Tests are also made for proper ribbon drive during normal ribbon feeding operations.

公开(公告)号：AU8882482A

公开(公告)日：1983-04-21

申请号：AU8882482

申请日：1982-09-29

Applicant: IBM

Inventor： CAVILL BARRY RICHARD

IPC: B41J29/46 ,  B41J19/18 ,  B41J19/30 ,  H02P1/18 ,  H02P23/00 ,  H02P29/00 ,  B41J29/38

Abstract: In a control system for a bidirectional printer capable of printing at different speeds on different lines, stored values representing the ideal velocities during the acceleration and deceleration of the print carriage for each direction and speed are compared with the actual values and any resulting difference is used to move the carriage velocity toward the ideal value.