Ricoh Toscana-P1 J007 Service Manual page 214

J007/J010
No.
1 AS Air Sensors x2
2 F Feelers x4
3 HT Head Tanks x4
4 --- Filter Units x2
5 H Print Heads x2
6 IM Ink Pump Motors x2
7 CT Ink Cartridges x4
An air sensor [1], two feelers [2], and head tank [3] comprise the reservoir of the ink supply system.
The ink flows from the head tank through a filter [4] that contains the piezoelectric element that expands
upon application of a electrical charge to force ink out of the nozzles of the print head [5].
Two ink pump motors [6] drive the simple pump mechanisms that draw ink out of the ink cartridges [7] and
send it to the head tanks.
One ink pump motor operates the pumps of two ink cartridges. The ink pump motor drives a single worm
gear. The direction of rotation of the gear determines which pump is operated. For example, when the KC
J007/J010
Ink Supply System
6
213