ENSEMBLE D'IMPRESSION ET UTILISATION CORRESPONDANTE

摘要

#CMT# #/CMT# The assembly (2) has an upstream print unit (4) and a downstream print unit (6) arranged to print a strip (14) over print width. The upstream and downstream print units define print interstices that define an interstice plane. The upstream and downstream print units define a middle line (M-M). A compensation unit (30) comprises two separate bypass units (36) i.e. deviation bodies, each defining a compensation path (TCO1) between the upstream and downstream units. The compensation path is longer than a neutral path of a neutral portion (18) of the strip to be printed. #CMT#USE : #/CMT# Print assembly i.e. offset printing assembly. #CMT#ADVANTAGE : #/CMT# The assembly is provided with an inspecting device that determines longitudinal difference between images printed by the upstream and downstream print units to allow the compensation unit to correct increase in longitudinal difference from the center portion of the strip with two images successively printed by the upstream and downstream printing units, thus improving quality of the printing image in a simple and inexpensive manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic top view of a printing assembly. M-M : Middle line TCO1-TCO4 : Compensation paths 2 : Print assembly 4 : Upstream print unit 6 : Downstream print unit 14 : Strip 18 : Neutral portion 30 : Compensation unit 36 : Separate bypass units.