| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink key 0-point setting device capable of setting the 0 point of ink key opening precisely in a short period of time.SOLUTION: An ink key 0-point setting device 50 is used for making 0-point setting of ink key opening of an offset printing machine 1 including an ink source roller 33 constituting an ink fountain 32 in which ink 31 is stored, and a plurality of ink keys 34. The ink key 0-point setting device 50 includes a fixing tool 51 fitted turnably to the frame 2 of the offset printing machine 1 and a light source 52 fixed to the fixing tool 51. The light source 52 emits light L to the upper part of the ink fountain 32 through a gap 36 between the ink source roller 33 and ink keys 34 from the lower part of the gap 36. |
