Epson Stylus Color 300, Service Manual

Page: 20 / 44

Chapter 1 Product Descriptions
Rev. A
1-13
‰
Power-On Operation
Table 1-11. Control Panel - Power-on Operations
Button Function
[1
st
button]
Hold down at
power on
[2
nd
button]
Pressed within
3 sec. after
power on.
∗
2
The printer perform the following after
performing the control panel operation
in left column.
CLEANING ----- Self-printing test
LOAD/EJECT ----- Status printing
LOAD/EJECT
+
CLEANING
LOAD/EJECT
+
CLEANING
∗
1
EEPROM Initialization
Note)
∗
1: Holds down the specified buttons for 10 sec. or more until INK OUT and
PAPER OUT LED starts blinking.
∗
2: After the power on, INK OUT and PAPER OUT LED starts blinking and
continue for about 3 sec. “Press within 3 sec. after power on” means to press
2
nd
buttons while these LED are blinking.
‰
Self-test printing:The printer prints the self check test pattern. The printer prints
a page at a time and pauses between each page. When the
printer is in pause state, press LOAD/EJECT button to resume
printing and turn the power off to cancel the self-test printing.
‰
Status printing: The printer prints; Firmware version, ink counter value and a
nozzle check pattern. The printer goes to a pause state after
print one page. To cancel the status printing, turn the power
off
while the printer is in pause state.
‰
EEPROM Initialization: Initialize the following addresses of the EEPROM (refer to the
EEPROM address map table in Appendix.)
1AH: Interface selection (00H: Auto)
1BH: Interface Wait Time (02H: 2 sec.)
2CH/2DH: Counter A (Protect counter) (00H)
70H - 73H: 4-color head non-installation time (00H)
78H - 7BH: Power Off Timer (00H)