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6. SETTING THE THERMAL HEAD
● SETTING THE THERMAL HEAD RANK
Solder the pads (RNK1 ~ RNK4) on PCB Z568-2 according to the head rank number indicated on
the tip of FPC from the thermal head. Refer to the next table.
HEAD RANK No. RNK1 RNK2 RNK3 RNK4
0 OPEN OPEN OPEN OPEN
1 SHORT OPEN OPEN OPEN
2 OPEN SHORT OPEN OPEN
3 SHORT SHORT OPEN OPEN
4 OPEN OPEN SHORT OPEN
5 SHORT OPEN SHORT OPEN
6 OPEN SHORT SHORT OPEN
7 SHORT SHORT SHORT OPEN
8 OPEN OPEN OPEN SHORT
9 SHORT OPEN OPEN SHORT
SHORT: Solder pad OPEN: Don't solder pad
* HEAD RANK No. = RNK1 × 1 + RNK2 × 2 + RNK3 × 4 + RNK4 × 8
(RNK1 ~ 4: SHORT = 1, OPEN = 0)
For example, if head rank number on FPC is 6, solder both RNK2 pad & RNK3 pad on PCB-Z568-2.
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