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1. (WO1997015451) SYSTEM FOR CONTROLLED INKING OF PRINTER RIBBONS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015451 International Application No.: PCT/US1996/015642
Publication Date: 01.05.1997 International Filing Date: 30.09.1996
IPC:
B41J 31/16 (2006.01) ,B41J 33/36 (2006.01) ,B41J 33/54 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
31
Ink ribbons; Renovating or testing ink ribbons
14
Renovating or testing ink ribbons
16
while fitted in the machine using the ink ribbons
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
33
Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
14
Ribbon-feed devices or mechanisms
36
with means for adjusting feeding rate
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
33
Apparatus or arrangements for feeding ink ribbons or like character-size impression-transfer material
14
Ribbon-feed devices or mechanisms
54
for ensuring maximum life of the ribbon
Applicants:
MANNESMANN TALLY CORPORATION [US/US]; 8301 S. 180th Street Kent, WA 98032, US
Inventors:
BRINGHURST, Edward, D.; US
Agent:
KARJEKER, Shaukat, A.; Christensen O'Connor Johnson & Kindness Suite 2800 1420 Fifth Avenue Seattle, WA 98101, US
Priority Data:
08/547,50624.10.1995US
Title (EN) SYSTEM FOR CONTROLLED INKING OF PRINTER RIBBONS
(FR) SYSTEME DE REGULATION DE L'ENCRAGE DE RUBANS ENCREURS
Abstract:
(EN) A method and apparatus for extending the useful life of a printing ribbon by controlling the ratio of ink used to ink applied to the ribbon, while maintaining visual clarity of printed characters. A counter accumulates the number of characters printed, and the print density, over a preset period of time. The number of characters printed is compared with predetermined triggering numbers of characters, and the print density is likewise compared with a predetermined triggering print density. As a result of this comparison, the speed of the printer ribbon is increased to allow an increase in the ratio of ink applied to ink used, when the number of characters and print density are high. Conversely, ribbon speed is decreased when the number of characters printed during the preset time period, and the print density, are low, to prevent overinking and fouling of printer hammers. This condition applies when the ribbon is relatively new.
(FR) L'invention porte sur un procédé et un appareil permettant de prolonger la vie utile d'un ruban encreur par la régulation du rapport encre utilisée/encre appliquée sur le ruban et maintenant par là la lisibilité des caractères imprimés. Un compteur accumule le nombre de caractères imprimés ainsi que la densité d'impression pendant une durée préétablie. Le nombre des caractères imprimés est comparé avec un nombre déclencheur prédéterminé de caractères; de même, la densité d'impression est comparée avec une densité d'impression de déclenchement prédéterminée. En fonction de cette comparaison, la vitesse du ruban croît pour permettre d'augmenter le rapport encre appliquée/encre utilisée lorsque le nombre de caractères et la densité d'impression sont élevés. Inversement, la vitesse du ruban décroît lorsque le nombre de caractères imprimés et la densité d'impression sont peu élevés, ce qui empêche le surencrage et l'encrassement des marteaux d'impression. Ce traitement ne vaut que pour un ruban relativement neuf.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996072020