Ricoh DD 5450, Field Service Manual

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Chapter 3 Drum Section
(5) Fine Start Mode
Description
This mode automatically sets optimum values for the following start conditions: timing of ink roller
actuation during master making, number of no-paper rotations with the ink roller actuated. These
optimum settings are based on room temperature, the length of time the printer was out of use, and
the number of prints in the last run.
They ensure clear printing right from the first sheet after master making.
*Room temperature of 10 degrees C or below can cause insufficient ink supply, even in Fine Start.
The cam turns a half-revolution, so that the
ink roller is pressed against the drum inner
surface. Then the drum rotates.
The cam turns a half-revolution, so that
the ink roller moves out of contact with the
drum inner surface.
Ink
Squeegee roller
Ink roller
Cam
Roller
Drum
Standby state
Printing starts.
7