AU566949B2 – Speed normalization of an element positionable by a servomechanism
– Google Patents
AU566949B2 – Speed normalization of an element positionable by a servomechanism
– Google Patents
Speed normalization of an element positionable by a servomechanism
Info
Publication number
AU566949B2
AU566949B2
AU32417/84A
AU3241784A
AU566949B2
AU 566949 B2
AU566949 B2
AU 566949B2
AU 32417/84 A
AU32417/84 A
AU 32417/84A
AU 3241784 A
AU3241784 A
AU 3241784A
AU 566949 B2
AU566949 B2
AU 566949B2
Authority
AU
Australia
Prior art keywords
speed
value
carriage
actual
servomechanism
Prior art date
1983-09-27
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU32417/84A
Other versions
AU3241784A
(en
Inventor
Max I. Anzae
Frank W. Lin
Sohdok D. Moon
Tri S. Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Genicom Corp
Original Assignee
MECHATRON SYSTEMS Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1983-09-27
Filing date
1984-08-27
Publication date
1987-11-05
1984-08-27
Application filed by MECHATRON SYSTEMS Inc
filed
Critical
MECHATRON SYSTEMS Inc
1985-05-02
Publication of AU3241784A
publication
Critical
patent/AU3241784A/en
1987-11-05
Application granted
granted
Critical
1987-11-05
Publication of AU566949B2
publication
Critical
patent/AU566949B2/en
2004-08-27
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D3/00—Control of position or direction
G05D3/12—Control of position or direction using feedback
B—PERFORMING OPERATIONS; TRANSPORTING
B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J19/00—Character- or line-spacing mechanisms
B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
B41J19/20—Positive-feed character-spacing mechanisms
B41J19/202—Drive control means for carriage movement
B—PERFORMING OPERATIONS; TRANSPORTING
B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
B41J1/24—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being perpendicular to the axis of rotation
B—PERFORMING OPERATIONS; TRANSPORTING
B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
B41J19/00—Character- or line-spacing mechanisms
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B19/00—Programme-control systems
G05B19/02—Programme-control systems electric
G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
G05B19/416—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B2219/00—Program-control systems
G05B2219/30—Nc systems
G05B2219/41—Servomotor, servo controller till figures
G05B2219/41119—Servo error compensation
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B2219/00—Program-control systems
G05B2219/30—Nc systems
G05B2219/42—Servomotor, servo controller kind till VSS
G05B2219/42171—Velocity profile, variable gain, multiplication factors, rom ram
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B2219/00—Program-control systems
G05B2219/30—Nc systems
G05B2219/45—Nc applications
G05B2219/45187—Printer
Abstract
A speed normalization circuit for eliminating the need to fine tune a servomechanism, such as a daisy wheel printer, after manufacture, for example, in order to compensate for speed variations caused by tolerance variations throughout the manufacturing process and evidenced by variations in the actual print wheel speed and the actual carriage speed, is disclosed. In operation, when a restore sequence is called for (power up, remote restore, cover open/resume, check/resume), the carriage is restored to the leftmost home position and is then stepped three times by an identical amount (twelve increments, 1/120 of an inch per increment). The average value of the actual carriage speed for these three movements is determined and a compensation value is selected. If the carriage speed is too slow, the nominal speed value stored in a read only memory look-up table is incremented by a fixed value (i.e., plus one, two, or three units); if the speed is too fast, the nominal speed value is decremented by a fixed value (i.e., minus one, two, or three units). The compensation value is added to the nominal speed value during subsequent actual operation of the servomechanism. For the print wheel, there are two programmed movements upon restore, namely, one half rotation in each direction (one forward, one reverse) for a total of ninety-six increments per movement. The speed compensation value is calculated in the same manner. Other features are also disclosed.
AU32417/84A
1983-09-27
1984-08-27
Speed normalization of an element positionable by a servomechanism
Ceased
AU566949B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US06/536,915
US4517503A
(en)
1983-09-27
1983-09-27
Method and apparatus for normalizing the speed of an element positionable by a servomechanism
US536915
1983-09-27
Publications (2)
Publication Number
Publication Date
AU3241784A
AU3241784A
(en)
1985-05-02
AU566949B2
true
AU566949B2
(en)
1987-11-05
Family
ID=24140444
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU32417/84A
Ceased
AU566949B2
(en)
1983-09-27
1984-08-27
Speed normalization of an element positionable by a servomechanism
Country Status (8)
Country
Link
US
(1)
US4517503A
(en)
EP
(1)
EP0141243B1
(en)
JP
(1)
JPS60156118A
(en)
KR
(1)
KR890003030B1
(en)
AT
(1)
ATE34124T1
(en)
AU
(1)
AU566949B2
(en)
CA
(1)
CA1232656A
(en)
DE
(1)
DE3471043D1
(en)
Families Citing this family (16)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS59182003A
(en)
*
1983-03-31
1984-10-16
Res Dev Corp Of Japan
Abnormal profile forming device
US4745346A
(en)
*
1984-10-04
1988-05-17
Pitney Bowes Inc.
Electronic postage meter print wheel setting optimization system
JPH0784081B2
(en)
*
1986-10-09
1995-09-13
沖電気工業株式会社
Reciprocal print alignment correction method for serial dot printer
US4833626A
(en)
*
1986-10-14
1989-05-23
International Business Machines Corporation
Optimizing printer throughput
US4854756A
(en)
*
1987-08-03
1989-08-08
Printronix, Inc.
Adaptive print hammer timing system
JP2850142B2
(en)
*
1988-12-02
1999-01-27
エヌシーアール インターナショナル インコーポレイテッド
Print head carriage drive system
US5074690A
(en)
*
1988-12-02
1991-12-24
Ncr Corporation
Print head carriage homing system
JPH06335275A
(en)
*
1993-05-24
1994-12-02
Nec Corp
Printer head carriage speed control system
CN1074998C
(en)
*
1996-03-12
2001-11-21
精工爱普生株式会社
printer and manufacture thereof
JP2004093599A
(en)
*
2002-08-29
2004-03-25
Fuji Xerox Co Ltd
Image forming apparatus and circuit board
US6830399B2
(en)
*
2003-03-14
2004-12-14
Lexmark International, Inc.
Methods and systems for compensation of media indexing errors in a printing device
US7205738B2
(en)
*
2004-03-24
2007-04-17
Lexmark International, Inc.
Method and apparatus for time-based dc motor commutation
US20080228293A1
(en)
*
2007-03-15
2008-09-18
Tanaka Rick M
System and method for tuning positioning mechanisms for printing apparatus
US9523947B2
(en)
2012-09-26
2016-12-20
Lexmark International, Inc.
Time-based commutation method and system for controlling a fuser assembly
US8836747B2
(en)
2012-10-02
2014-09-16
Lexmark International, Inc.
Motor control system and method for a laser scanning unit of an imaging apparatus
WO2016114759A1
(en)
*
2015-01-13
2016-07-21
Hewlett-Packard Development Company, L.P.
Anticipating maintenance in a printing device
Citations (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU1652776A
(en)
*
1975-08-03
1976-10-14
Xynetics Inc.
Positioning system
AU3483578A
(en)
*
1977-06-29
1979-10-11
Ibm Corp.
Positioning system for recording head
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1290090A
(en)
*
1970-03-30
1972-09-20
JPS5838802B2
(en)
*
1974-05-08
1983-08-25
株式会社不二越
Kogiyouyourobobotsutonadono Ichiseigiyosouchi
US4025837A
(en)
*
1975-06-30
1977-05-24
International Business Machines Corporation
Adaptive control circuit for a stepping motor
US4021650A
(en)
*
1975-11-19
1977-05-03
Xerox Corporation
Velocity command signal generating apparatus
JPS5263578A
(en)
*
1975-11-20
1977-05-26
Fanuc Ltd
Error correction system by means of numerical control
JPS54132090A
(en)
*
1978-04-03
1979-10-13
Fanuc Ltd
Error correction system for numerical control
EP0009291B1
(en)
*
1978-09-20
1982-10-27
Philips Norden AB
A device for indicating the position of a printer carriage
US4355273A
(en)
*
1980-09-15
1982-10-19
Xerox Corporation
Servo capture system
DD154355A1
(en)
*
1980-12-12
1982-03-17
Claus Drehobl
CONTROL DEVICE FOR EXTRACTION OF PRINTING MATERIAL
US4460968A
(en)
*
1981-10-16
1984-07-17
International Business Machines Corporation
Print head motor control with stop distance compensation
US4459525A
(en)
*
1982-02-03
1984-07-10
Ricoh Company, Ltd.
Motor speed control system
1983
1983-09-27
US
US06/536,915
patent/US4517503A/en
not_active
Expired – Fee Related
1984
1984-08-01
JP
JP59160295A
patent/JPS60156118A/en
active
Pending
1984-08-17
CA
CA000461298A
patent/CA1232656A/en
not_active
Expired
1984-08-25
DE
DE8484111423T
patent/DE3471043D1/en
not_active
Expired
1984-08-27
AU
AU32417/84A
patent/AU566949B2/en
not_active
Ceased
1984-09-25
AT
AT84111423T
patent/ATE34124T1/en
not_active
IP Right Cessation
1984-09-25
KR
KR1019840005893A
patent/KR890003030B1/en
not_active
IP Right Cessation
1984-09-25
EP
EP84111423A
patent/EP0141243B1/en
not_active
Expired
Patent Citations (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
AU1652776A
(en)
*
1975-08-03
1976-10-14
Xynetics Inc.
Positioning system
AU3483578A
(en)
*
1977-06-29
1979-10-11
Ibm Corp.
Positioning system for recording head
Also Published As
Publication number
Publication date
DE3471043T
(en)
1988-06-16
KR890003030B1
(en)
1989-08-19
EP0141243B1
(en)
1988-05-11
CA1232656A
(en)
1988-02-09
US4517503A
(en)
1985-05-14
AU3241784A
(en)
1985-05-02
JPS60156118A
(en)
1985-08-16
ATE34124T1
(en)
1988-05-15
DE3471043D1
(en)
1988-06-16
EP0141243A1
(en)
1985-05-15
KR850002342A
(en)
1985-05-10
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