Ricoh DD 5450, Руководство по обслуживанию на месте, Страница: 151 / 403

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Chapter 3 Press Section
● Press center sensor
The center is detected by the center detection
edge.
● The press upper limit and the press lower limit
are controlled by the encoder pulse from the
center detection edge.
1. When the press motor moves in the direction
of the black arrow, the contact pressure of
the press roller to the drum increases and
printing is darkened.
2. When the press motor moves in the direction
of the white arrow, the contact pressure of
the press roller to the drum decreases and
printing is lightened.
①
②
1. Contact Pressure Detection
Press roller
Press encoder
sensor
Press center sensor
Press motor
Center detection edge
Press center sensor
5