Cap Mechanism; Figure 2-13. Cap Mechanism; Wiping Mechanism; Figure 2-14. Wiping Mechanism - Epson Stylus Pro Service Manual

Stylus Pro Service Manual Operating Principles

2.2.7 Cap Mechanism

The cap mechanism prevents printhead nozzles from drying and keeps bubbles from forming inside the nozzle
while the printer is not in use. The printer performs this operation automatically when print data is not
received, when printer power is turned off, and during printing or ink system operations. (The power switch
uses a secondary circuit that allows this operation to be performed.) Also this printer has 2 caps, 1 for the
black head and 1 for the color head.
Color Cartridge Black Cartridge
1'
1
Cap 1 Cap 2
Cap Holder
Air Valve
Valve Spring

Figure 2-13. Cap Mechanism

2.2.8 Wiping Mechanism

The wiping mechanism cleans the surface of the printhead nose when the printer is in the ink system
sequence. The wiper drive gear transmits power from the paper feed motor via the clutch gear. When the
wiper is raised up against the printhead surface, the hook for securing the carriage to the home position is
raised, too. When the wiper goes down toward the bottom frame, the hook goes down, too. Both the black
head and the color head are cleaned by this wiper.
H o o k
Hook Lever
Wiper (Cleaning Blade)
Wiper Drive Gear
Platen
Clutch
Wiper Drive Gear Frame

Figure 2-14. Wiping Mechanism

Rev.A 2-11