Ink System Management; Ink Operations - Epson Stylus 1500 Service Manual

INK SYSTEM MANAGEMENT

This section explains how the ink system is controlled to protect the printhead and ink supply and
to ensure high-quality output. Ink system control is composed of the following operations:
Power On
Ink Cartridge Replacement
Cleaning Selection
Print Start
Flushing
False Absorbing
Wiping
Rubbing
Micro Absorbing
Transportation Sequence
These ink system operations are controlled by the following counters:
Protect counters A, B, and C
Ink consumption counter

Ink Operations

The ink operations that can be performed selectively by the printer are described below.
Power On
This operation is performed when power is turned on. The control counters are summed.
Ink Cartridge Replacement
This operation is performed when the Alt button is held down for more than 3 seconds; the carriage
then moves to the ink cartridge replacement position.
Cleaning Selection
This operation cleans each nozzle to ensure that the nozzle fires and no dots are skipped during
printing. This operation is performed by pressing the cleaning button combinations (Alt +
Load/Eject or LF/FF) while the printer is paused.
Print Start
This operation eliminates ink from the nozzle surfaces and is performed when the printer receives
data in the standby state.
Flushing
This operation is to eject a few ink dots from printhead nozzles, preventing an increase in the
viscosity of the head ink. It is performed during continuous printing outside the printable area to
increase throughput.
False Absorbing
This operation absorbs ink inside the cap and eliminates ink on the nozzle plate.
Wiping
This operation eliminates dust or ink from the nozzle plate using the head cleaner.
EPSON Stylus 1500 Service Manual
Operating Principles
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