Sheet registration calibration

Details Sheet registration calibration Sheet registration calibration

1989-09-25

1991-01-22

Schacher, Richard A.

Sheet feeding or delivering

Feeding

With means to align sheet

271265, 271277, B65H 912

Patent

active

049865269

ABSTRACT:
A method of calibrating registration of a sheet with a sheet gripper on a moving transport. The sheet gripper is adapted to move the sheet in a recirculating path in a printing machine. Movement of the sheet gripper and sheet is timed from a reference time until each reaches a loading zone. The times are compared to a preselected time and the movement of the sheet gripper and sheet adjusted to correspond to the preselected time. In this way, the sheet and sheet gripper arrive at the loading zone simultaneously.

REFERENCES:
patent: 3719267 (1973-03-01), Reist et al.
patent: 4331328 (1982-05-01), Fasig
patent: 4519700 (1985-05-01), Barker et al.
patent: 4634113 (1987-01-01), Matsuda
patent: 4718659 (1988-01-01), Hayashi
patent: 4804998 (1989-02-01), Miyawaki

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