Patent ID: 6901861
Filing Date: 2005-06-07
Classification: B41F

Abstract:
1. An ink viscosity measuring device used in a printing apparatus that comprises: a printing cylinder ( 2 ), a pressing member ( 13 ), an ink roll ( 4 ), a wringing member ( 5 ) which faces said ink roll ( 4 ) in a tightly adhering manner and forms an ink collecting area (A) between said wringing member ( 5 ) and said ink roll ( 4 ), an ink circulation passage ( 10 , 12 ) which supplies ink to said ink collecting area (A) and recovers said ink, and an ink tank ( 8 ) which communicates with said ink circulation passage and functions as a supply source and recovery source for said ink; and in said printing apparatus, ink in said ink collecting area (A) is transferred to the printing cylinder ( 2 ) via said ink roll ( 4 ) and printed on sheets that pass between said printing cylinder ( 2 ) and said pressing member ( 13 ), wherein said ink viscosity measuring device comprises: a first rotating body ( a second rotating body ( an electrical driving means ( a load current value detection means ( a memory means ( a calculating means (