Epson Stylus pro 7700m, Service Manual

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This operation is performed when the Alt button is held down for more than 3 seconds (the Pause LED lights);
the carriage then moves to the ink cartridge replacement position.
10. Wiping Operation 1
This operation eliminates dust from the nozzle plate before performing ink absorption.
11. Wiping Operation 2
This operation eliminates dust or ink from the nozzle plate after performing ink absorption.
12. Rubbing Operation
This operation removes dust or ink that adheres to the head surface.
13. Disengage ON Operation
This operation sets the switch lever to the position where it transmits the PF motor drive to the pump
mechanism. It also moves the carriage to the home position, where the lever is set to the specified position.
14. Disengage OFF Operation
This operation resets the switch lever to the position where it transmits the PF motor drive to the pump
mechanism. It also moves the carriage to the flushing position, where the lever is reset to the specified
position.
15. Micro Absorbing Operation
When the cartridge is removed, it is possible for a small amount of air to form small air bubbles that can block
the ink from the nozzle. This operation eliminates small air bubbles from the cavity of the printhead.
16. Carriage Lock Set
This operation prevents the carriage from moving out of the home position if the printer is turned off or is
paused. This operation is performed when the carriage is in the ink system home position and no paper is
loaded.
17. Carriage Lock Reset
This operation resets the carriage lock lever.
18. Refresh Operation (Performed when Loading or Ejecting Paper)
This operation prevents an increase in the viscosity of ink inside the black head surface when paper is being
loaded or ejected. When just the black head is on, the color head is capped as paper is loaded or ejected. The
printer performs the flushing operation for the black head only.
19. Adjust Lever Operate Position Moving Sequence
This operation is performed when the Alt and Font buttons are pressed simultaneously while the printer is
paused.
20. Transportation Sequence
This sequence is performed to clean the printhead when the printer is transported to the market.
Stylus Pro Service Manual Operating Principles
Rev.A 2-23