Print Drum Rotation Mechanism - Riso RZ9 Series Technical Manual

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CHAPTER 9: PRINT DRUM SECTION

5. Print Drum Rotation Mechanism

When the main motor rotates, the drive is transferred in following sequence.

The main motor drive is transferred to the main shaft assembly via main belt, and via the drive joint the drum

joint receives the drive and rotates the flange-R of the print drum.

The flange gear on flange-R drives the squeegee idle gear and the drive is transferred to the squeegee drive gear

to rotate the squeegee roller.

As the squeegee roller rotates, the squeegee roller attached on the squeegee roller shaft rotates and transfers

the drive to the driven shaft gear and rotates the driven shaft.

The squeegee drive gear contains a one-way clutch to prevent the squeegee roller from rotating in the reverse

direction if by accidentally the print drum is rotated in the opposite direction by hand.

The doctor roller is fixed in position and does not rotate.

Driven shaft

Driven shaft gear

Squeegee gear

DANKA AUSTRALIA PTY. LTD.

Doctor roller

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Squeegee drive gear

Squeegee roller

Squeegee idle gear