Epson Stylus Photo 720, Service Manual

Page: 20 / 154

EPSON Stylus Photo 720 / EPSON Stylus Photo EX3 Revision A
Product Description Control Specification 20
1.4.2.2 Special Setting Mode
You can go to the special setting mode by the following operations.
1. Turn on the power while pressing the Load/ Eject button and ink maintenance button.
2. Paper check LED starts blinking. (3 seconds)
3. While the paper check LED is blinking (3 seconds), press the appropriate button. See
Table 1-13.
NOTE: Hold the button pressed for 10 seconds.
1.4.3 LED Indications
See the table below for more detailed LED indications. Since LED indicates the
various errors and current printer operations, LED indications enable to find out the
proper repair operation.
NOTE: *1 For error condition, refer to “Fatal Error” under the “Errors” on
page 21.
*2 EEPROM clear does not mean to clear all address in
EEPROM. (See “Special Settings Mode” on page 20)
*3 -- in the table above means no change.
n
When maintenance error (protection counter over flow) is
happened, if you clear the error by this operation, be sure to
replace the waste ink absorber.
n
Whenever you replaced the waste ink counter (even when ink
maintenance error has not occurred), be sure to perform the
counter reset by this operation.
Table 1-13. Special Settings Mode
Buttons Function
Load/Eject Initialize EEPROM and reset timer IC.
This operation will reset the following items:
• Interface selection (04H)
• CL time (68/ 69H)
• Power OFF time (6C/ 6DH)
Cleaning
(Pressed for 10 seconds)
Reset the ink overflow counter.
This operation will reset the following items:
• Ink counter A0 (5C/ 5DH)
• Ink counter A80 (5E/ 5FH)
Table 1-14. Printer Status displayed on the control panel
Printer Status
Indicators
Power
Paper
Check
Ink End
(Black)
Ink end
(Color)
Priority
Power on condition On --
*3
-- -- 9
Ink sequence Blink -- -- -- 6
Ink cartridge exchange mode Blink -- -- -- 5
Data processing Blink -- -- -- 8
Paper check
*1
-- On -- -- 4
Paper jam
*1
-- Blink Off Off 3
No ink cartridge or Ink end
(black)
*1
-- -- On -- 7
No ink cartridge or Ink end
(color)
*1
-- -- -- On 7
Ink level low (black) -- -- Blink -- 7
Ink level low (color) -- -- -- Blink 7
EEPROM and Timer IC reset
*2
--
On
(for 1
second)
On
(for 1
second)
On
(for 1
second)
--
Maintenance Request Blink Blink Blink Blink 2
Fatal Error
*1
Blink Blink On On 1