Method for calibrating accurate paper steps

A method for accurately controlling a medium (10) displacement in an inkjet printer (3) is provided by accurately determining a relation between an actuation signal for a drive motor (14) and a medium displacement. The method comprises the steps of establishing a set of calibration actuation signals...

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Bibliographic Details
Main Authors KOEKEBAKKER, Sjirk H, DIRKSZ, Daniël A, COENEN, Jeroen J.G, PÉREZ MUÑOZ, Juan C
Format Patent
LanguageEnglish
French
German
Published 01.02.2017
Subjects
CONVEYING
CORRECTION OF TYPOGRAPHICAL ERRORS
HANDLING THIN OR FILAMENTARY MATERIAL
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PACKING
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
STORING
TRANSPORTING
TYPEWRITERS
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Summary:A method for accurately controlling a medium (10) displacement in an inkjet printer (3) is provided by accurately determining a relation between an actuation signal for a drive motor (14) and a medium displacement. The method comprises the steps of establishing a set of calibration actuation signals each corresponding to a nominal calibration step and determining an achieved medium displacement step for each calibration actuation signal in the set. The set comprises at least one calibration actuation signal for actuating the drive motor (14) to make one full revolution and at least one calibration actuation signal for actuating the drive motor to make a rotation larger than one full revolution, but smaller than two full revolutions. Both a cyclic deviation and a local deviation of the nominal displacement relation is determined based on a finite series of basis functions.
Bibliography:Application Number: EP20150173682