MASTER FEED SECTION
SM 3-47 C262/C265
Replacement
Adjustment
3.7.15 THERMAL HEAD VOLTAGE ADJUSTMENT
CAUTION
• The voltage value affects the durability of the thermal head, and is different for
each thermal head. Refer to the exact voltage value that is labeled on each
thermal head.
• The adjustment range is between + 0 and – 0.1 volts from the specified value.
Never set it out of this range even if there is an image quality problem.
• This adjustment is always required after the thermal head or PSU is replaced.
Purpose: To maintain master making quality and extend the lifetime of the thermal
head.
1. Turn off the main switch. Then, remove the rear cover to access the PSU [A].
2. Check the voltage on the thermal head decal.
NOTE: The value is different for each thermal head.
3. Turn on the main switch and access the SP mode (Clear Modes ⇒ 1 ⇒ 0 ⇒ 7
⇒ Clear/Stop). Then, select SP 5-010-13 (the thermal head voltage output
mode).
4. Press the Start key to apply the voltage to the thermal head. The voltage is
continually supplied while the Start key is held down.
NOTE: As another way to apply the voltage, press the key instead of the
Start key. However, after the key is pressed, the machine will not
stop supplying the voltage until you press the Clear/Stop key or cancel
the SP mode. To protect the thermal head, never leave the voltage on
for a long time.
C262R031.WMF
[A]
[B]
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