Sheet transport unit for recording systems

Details Sheet transport unit for recording systems Sheet transport unit for recording systems

1990-10-15

1992-06-30

Fuller, Benjamin R.

Recorders

Record receivers and/or driving means therefor

Drum

346134, 346140R, 318696, 318685, 400902, B41J 1142

Patent

active

051267640

ABSTRACT:
In a sheet transport unit for recording systems which uses a pulse motor to feed a recording sheet quantitatively and intermittently, multiple different current apply intervals are specified within the stop period during intermittent sheet feed, so that a maximum amount of current will be applied to the first interval immediately after the drive stops. Thereby, the pulse motor is never be damaged due to its temperature rise despite a load variation and the load variation can be absorbed enough to ensure high positioning accuracy.

REFERENCES:
patent: 4734719 (1988-03-01), Suzuki
patent: 4769585 (1988-09-01), Tanuma et al.

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