Service Maintenance - Epson Stylus COLOR 670 Service Manual

EPSON Stylus COLOR 670

6.1.2 Service Maintenance

If any abnormal print (dot missing, white line, etc.) has occurred or the printer
indicates "Maintenance Request Error", take the following actions to clear the
error.
o
Head Cleaning
When any abnormal print has occurred, it is necessary to perform
printhead cleaning, using the built-in head cleaning function. This
function can be executed from the control panel, printer driver utility
and adjustment program. EPSON Stylus COLOR 670 has 3 modes for
manual cleaning and even during printing, appropriate cleaning mode
is automatically selected and executed according to various
conditions. When you select and execute manual cleaning, the most
appropriate cleaning mode is selected and therefore the cleaning
completion period varies depending on the mode. (Refer to "Ink
Sequence" on page 42.)
The following is the process to perform the head cleaning from the
control panel.
1. Make sure that the printer is in stand-by state (the Power indicator is not
blinking), and press "Maintenance" button on the control panel.
2. After performing the head cleaning sequence, perform the print check. If
you repeat cleaning without print check, the weakest cleaning, CL1 will be
repeated.
Maintenance
o
Maintenance Request Error
Ink is used for cleaning operation as well as printing. When ink is used
for cleaning, the ink is drained to Waste Ink Pad (Ink Absorber Tray
Assembly) and the amount of waste ink is recorded in the EEPROM on
the MAIN board. Due to this, when the waste ink has reached the limit
of the absorbing capability of the Waste Ink Pad, Maintenance
Request Error is indicated on LED.
In this case, replace the Waste Ink Pad and clear the Waste Ink
Counter stored in EEPROM. Waste Ink Counter can be reset from the
control panel and the adjustment program. The following is the
process to reset the Ink Counter by the control panel.
1. Replace Ink Absorber Tray Assembly.
2. Turn the printer ON while pressing Load/Eject and Ink Maintenance
buttons.
3. While Paper Out LED is blinking (for 3 seconds), keep pressing the Ink
Maintenance button.
4. When the Waste Ink Counter is reset, all the panel LED starts blinking and
it returns to ON line condition.
Overview
Revision A
124