Epson Stylus Color 670 Service Manual

EPSON Stylus COLOR 670 Revision A
Operating Principles Overview 42
2.1.8 Ink Sequence
o Initial ink charge
After the product is purchased and the printer is turned on for the first
time, the printer performs the initial ink charge and charges ink inside
the head cavity. When the initial ink charge is completed properly, the
printer releases the flag inside the EEPROM and no initial ink charge
will be performed next time the power is turned on. Stylus COLOR 670
takes about 85 seconds to complete initial ink charge sequence.
o Manual cleaning
When the dot missing by printhead is occurred, Stylus COLOR 670
provides three types of manual CL to clean air bubbled or clogged ink
with viscosity or foreign substances.
The following manual CL sequences can be executed by panel
operation or from the printer driver utility.
n CL1
- Ink absorption (Black Ink: 0.16ml, Color Ink: 0.26ml)
-Wiping operation (Wipes nozzle plate by the rubber part on the right
half of the wiper.)
-Flashing operation (Prevents color from mixing. Stabilizes ink
surface inside the nozzle)
n CL1’
- Ink absorption (Black Ink: 0.40ml, Color Ink: 0.63ml)
-Wiping operation (Wipes nozzle plate by the rubber part on the right
half of the wiper.)
-Flashing operation (Prevents color from mixing. Stabilizes ink
surface inside the nozzle)
n CL2
- Ink absorption (Black Ink: 0.47ml, Color Ink: 0.73ml)
-Wiping operation (Wipes nozzle plate by the rubber part on the right
half of the wiper.)
-Rubbing operation (Wipes nozzle plate by the felt part on the left half
of the wiper.)
-Flashing operation (Prevents color from mixing. Stabilizes ink
surface inside the nozzle)
The above mentioned manual CL is executed by performing nozzle check
pattern and manual CL alternately. The cleaning order is CL1
→ CL1’ → CL2 →
CL1. If no test print is executed between each manual CL, only CL1 is to be
performed. Like previous models, when the power is turned ON, the printer
executes power on CL automatically according to power OFF period and the
counter value of the cleaning timer. Power on CL sequence is designed to
prevent the ink viscosity and dot missing caused by foreign substances.
According to each counter value, certain amount of ink (Black: max. 0.12ml,
Color: max. 0.58ml) is consumed by power on CL when the power is applied.

Epson Stylus Color 670 Specifications

General

Brand	Epson
Model	Stylus Color 670
Category	Printer
Language	English