Liquid immersion development machine having a development system adapted to compensate for copy paper roughness

A liquid immersion development (LID) reproduction machine for producing quality toner image hard copies on different types of copy sheets where each type of sheet has a different surface roughness, the reproduction machine comprising:

• (a) a moveable image bearing member having an imaging surface defining a path of movement therefor;
• (b) latent image forming means mounted along said path of movement for forming a latent image on said imaging surface;
• (c) a plurality of copy sheet supply units including a first unit supplying a first type of copy sheet having a relatively rough image receiving surface, and a second unit supplying a second type of copy sheet having a relatively smooth image receiving surface, for receiving a toner image from said imaging surface;
• (d) an electronic control subsystem connected to each operating unit of the machine including the copy sheet supply units for selectively controlling operation of each such operating unit;
• and
• (e) a development system including a development unit mounted along said path of movement and connected to said control subsystem for developing the latent image so as to produce a toner image compensating for differences in the surface roughness of the different types of copy sheets receiving the toner image;
• said development unit including:
• (i) a first developer material supply source containing a selectable first developer material having a first color and a first level of pigmentation for developing a latent image to be transferred onto the first type of copy sheet supplied from said first copy sheet supply unit;
• and
• (ii) a second developer material supply source containing a selectable second developer material having said first color and a second level of pigmentation, different from said first level of pigmentation, for developing a latent image to be transferred onto the second type of copy sheet supplied from said second copy sheet supply unit, thereby varying the levels of pigmentation of developer material of said first color so as to produce high quality toner images for compensating for differences in the surface roughness of the different types of copy sheets.