4. Press the Cancel key when the printing is completed.
5. When the screen shown in Fig. 3-2 is displayed on the monitor screen, turn off the power and
disconnect the power cord from this unit.
6. Replace the thermal head.
m
. When replacing the thermal head, confirm the resistance value of old and new heads and find the
difference in the resistance value.
. The resistance value is described beside the head.
7. After the thermal head is replaced, connect the power cord and enter the service mode again. At that
time, confirm that a \ mark is located in OPrint Calibrate� on the monitor screen and press the Enter
key. (Fig. 3-4)
Fig.3-4
8. Confirm the display in parentheses in the lower-left position when the screen (shown in Fig. 3-5) is
displayed on the monitor screen. (An example of the screen is R2-4.)
The print voltage after replacement is determined by the difference between the display in
parentheses and the head resistance value in step 6.
n
The voltage applied to the head is changed by the head resistance value. The change in a voltage is
adjusted in two levels.
DPP-EX5 V13-3 |
ACEC
SONY
