Service manual

Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635 Revision C
Epson Stylus Photo PX660/PX660 Premium/Artisan 635 Adjustment 160
Confidential
8.3.3 Touch Panel Calibration
 Purpose
To calibrate the capacitive touch panel of Epson Stylus Photo PX660/PX660
Premium/Artisan 635 to function correctly, and to write the calibrated value to the
EEPROM on the Main Board.
 Calibration procedure
1. Connect the printer to the computer in which the Adjustment Program is installed
using a USB cable and turn the printer on, then start the Adjustment Program.
2. Select “Touch Panel Calibration” from the menu of the Adjustment Program to
display the adjustment screen.
3. Press the “Perform” button on the displayed screen. The calibration and writing
the calibrated value to the EEPROM on the Main Board will be executed
automatically.
4. After writing the calibrated value is complete, perform "Touch Panel Operation
Check (p160)". If an error occurs, make sure nothing is touching the touch panel,
and then perform the calibration again. If the error recurs, replace the Panel Unit.
8.3.4 Touch Panel Operation Check
 Purpose
To confirm that the capacitive touch panel of Epson Stylus Photo PX660/PX660
Premium/Artisan 635 functions correctly.
C A U T I O N
Do not touch the Panel Unit when performing the “Touch Panel
Calibration”, or the Panel Unit will not be calibrated correctly.
C H E C K
P O I N T
 To perform touch panel operation check, it is necessary to start
the printer in the special inspection mode.
 When starting Epson Stylus Photo PX660/PX660 Premium/
Artisan 635 in the special inspection mode, take the necessary
procedure (
p.161 ) within 30 seconds after turning the power off.
If 30 seconds or more pass after turning the power off, turn it on
once again, then turn it back off and take the necessary
procedure within 30 seconds to start the printer in the special
inspection mode.
 Press the Power button to exit from the special inspection mode.
The following screen appears when the Power button is pressed,
and the power turns off if the button is pressed again.
Figure 8-29. Power Off Screen in the Special Inspection Mode
 If one of the modes in the menu (Fig. 8-31) is selected and
entered by pressing the OK button, you cannot go back to the
screen (Fig. 8-31) again. To return to the screen (Fig. 8-31), turn
the power off once, and start the printer in the special inspection
mode once again.
Initial Charge Flag check
Initial Charge Flag: OFF
Push [Power] button