NOTE: There is no pressure sensor in the system. The Prime Pump operates at a certain time to reach a specific pressure level, the system is depressurized by releasing the pinching of the release tube in the Service Station (by moving the service station). NOTE: It is important to ensure the Carriage reaches the maximum left position; if not, the off-axis coupling will not connect the Prime Pump with the Carriage. Also, the coupling is made of a rubbery material, degradation of the material will affect Primer performance due to air leaks. Electronics The control driver of the Prime Pump is located on the remote controller board located on the right-hand side of the printer.
There is no encoder for the Prime Pump. This pump is managed only by a DC motor activated for a certain period of time to create the required priming pressure. Service Station system Functionality Item Function Printhead Wipers These are rubber paddles that are passed through the nozzle plate of the printhead with the Service Station movement. They clean the excess ink from the nozzle plate with a rubbing action. Printhead Cap This caps and protects the nozzles from drying when they are not printing. Service Station Motor system This moves the shuttle with the wiper and the cap so that these two items can perform their functions.
The system is composed of a DC motor and an encoder disk with an encoder sensor to read the motor position. 8 Chapter 1 Printer fundamentals ENWW