Epson DFX-8500 Service Manual page 169

DFX-8500
17. Gradually bring the printhead to the surface of the thickness gauge using the Micro Feed buttons:


Press the Micro Feed ↓ button to increase the value by 1.


Press the Micro Feed ↑ button to decrease the value by 1.


Press the Tear Off button to increase the value by 10.


Press the Top of Form button to decrease the value by 10.
The panel indicates the current Beta 4 adjustment value. (See Table 4-1.)
18. Press the Pause/Reset button. All of the measured Beta values are written to the EEPROM.
Note: If the measured Beta values are outside the allowed range (See Table 4-1), the printer sounds six
beeps and doesn't write the values to the EEPROM.
19. Turn the printer power off, then reinstall the ribbon mask holder and the ribbon cartridge.
Beta No.
Beta 3'
Beta 2
Beta 3
Beta 4
*1: After the EEPROM is reset.
LED*
Ribbon
Pause
Top of Form
Tear Off
Copy
Pitch
Font
7 Segment
4-14
Thickness Gauge
(for BETA3' = 0.43 mm)
Figure 4-18. Using the Thickness Gauge
Table 4-1. Beta Values Adjustment
Reference Thickness Gauge
0.43 mm with 150 gf tension
0.00 mm
0.43 mm
0.80 mm
Table 4-2. LED Value Display
(Bi-d. adjustment)
(platen gap adjustment)
Platen
Tension Gauge
135 - 165 gf
Allowed Value Default Value*
- -
367 – 419 408
405 – 437 435
418 – 475 461
Off On
+ (positive) (negative)
300 400
Each LED
equals +10.
0 to 9