Ricoh D124-17 Service Manual page 50

1. Product Information
• An independent scanner stand supports the scanner. The scanner stand is docked to
• Originals fed from the original feed tray exit at the top. If the original guides are
• The scanner also holds the operation panel.
Paper Feed. The main unit stand supports both the main unit and holds the paper feed
[B]
rollers.
• Paper is supplied from one roll unit, provided with the main unit.
• Suction from one fan below the platen holds the paper in position during feeding
• One additional roll unit can be installed as an option. Printed sheets from both rolls
• The stoppers of the paper rolls can be easily adjusted to accommodate either 2-in.
[C] Main Unit. This is the main body of the unit.
• Carriage Unit. The carriage unit holds the print heads and head ink tanks. The
• Print heads. The replaceable print heads contain small sub tanks that can hold 6 cc
• Main scan unit. Refers to the horizontal motor and horizontal encoder that move the
• Sub scan unit. Refers to the vertical motor and vertical encoder wheel and sensors
• Ink supply unit. Ink is supplied through a tube pumping system. The ink supply
• Print head maintenance. The maintenance unit has three head caps and one
• Waste ink collection. Three receptacles hold waste ink. The ink collector tank, easily
[D] Paper exit and cutter. Each sheet of roll paper is cut as it exits the front of the machine.
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the back of the main unit and fastened with four screws to the base of the main unit.
removed, the originals will exit the rear.
and printing.
exit the machine at the front.
or 3-in. roll cores.
carrier moves horizontally and prints at 64.7 mm/s on one pass.
of ink. There are two K print heads and one head each for Y, M, and C. The print
heads can be replaced on site.
carriage unit and print heads from left to right during printing.
that control operation of the urethane-coated paper feed roller driven by the
vertical motor and controlled by a vertical encoder wheel.
pumps are controlled by feedback provided by feeler sensors attached to the sides
of the ink cartridges above the print heads.
cleaning cap. The one cleaning cap (a suction cap) performs head maintenance for
all the heads.
removed from the right side of the main unit. The right ink sump is located behind the
ink collector tank on the right side of the main unit. The left ink sump is on the left
side of the machine.