EP 0702334 B1 20010124 - System for controlling an ink jet print head in a franking machine by vernier control
Title (en)
System for controlling an ink jet print head in a franking machine by vernier control
Title (de)
System zum Regeln eines Tintenstrahldruckkopfs in einer Frankiermaschine durch Nutzung eines Noniuseffekts
Title (fr)
Système de réglage par effet vernier d'une tête d'impression à jet d'encre dans une machine d'affranchissement
Publication
Application
Priority
FR 9411074 A 19940916
Abstract (en)
[origin: EP0702334A1] The franking machine has an ink-jet printing head (2) with a number ink-feeds (B1-B3;B128;B'1;B'128) arranged in at least two buses (R1,R2) extending transversally to the displacement direction (F) of the articles to be franked. The ink-feeds are sepd. from each other by a distance (D). The control system(3) controls the chronological succession of ejected ink-drops to delay the ink-jet from one of the feed bus (R1) by a delay R based upon pre-recorded data (d) which represents an estimate of the distance(D). The control system(3) is arranged to control a first series of ink-jets from the feed bus (R1) so as to print a first rectilinear scale (110) graduated in equal intervals following the displacement direction. The system then controls, after the delay R, commencing at the start of the first sequence, a second sequence of ink-jets from the bus feed (R2) to print a second rectilinear scale (111) divided into equal second interval graduations following the displacement direction and smaller than the first intervals. This second scale forms a vernier associated with the first scale to obtain an error value for adjustment of the recorded data.
IPC 1-7
IPC 8 full level
G07B 17/00 (2006.01)
CPC (source: EP)
G07B 17/00508 (2013.01); G07B 2017/00532 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0702334 A1 19960320; EP 0702334 B1 20010124; DE 69519969 D1 20010301; DE 69519969 T2 20010705; FR 2724591 A1 19960322; FR 2724591 B1 19970131
DOCDB simple family (application)
EP 95401956 A 19950825; DE 69519969 T 19950825; FR 9411074 A 19940916