Head Voltage - MUTOH Rockhopper II series Maintenance Manual

Step 5 : Press the [F3] key.
Step 6 : Press the [F1] key.
Step 7 : Press the [F4] key.
Step 8 : The password has been inserted. Use the [F1], [F2], [F3] and [F4] key to insert the MAC
address.
Step 9 : Press the [ENTER] key to confirm.
Step 10 : Press the [POWER] key to power OFF the unit.

6.3.4 Head Voltage

In this menu, you can change the head voltage compensation value from -9 to +2.5. The default value is 0.
If your Rockhopper does not print perfectly in 360x360, change the value to optimize your printquality.
* Head VLT *
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Rockhopper II series printers – Maintenance Manual
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AP-74065, Rev. 1.2, 27/09/04