Citizen CT-S310 Mode D'emploi page 28

Manual Setting of Memory Switch (Memory SW)
The memory switch can be selected, changed, or written by the combination of
three actions: pressing the FEED switch, pressing and holding the FEED switch,
and opening or closing the paper cover.
1. Entering memory switch setting mode.
Set paper to the printer and keep the printer cover open. With the FEED
button pressed and held, turn the printer power on, and then press the
FEED button twice. Close the cover. If the current settings of the memory
switch etc. are printed, the printer is now in the memory switch setting
mode.
Memory SW (1) 00000000
2. Selecting memory switch
When the FEED button is pressed short (within 2 seconds), printing occurs
in the order of "Memory SW1" → "Memory SW2" → "Memory SW3" →
......"Memory SW10" → "Save To Memory" → "Memory SW1" → ......
repeatedly. When the memory switch you want to change is reached,
press and hold the FEED button (for more than 2 seconds).
3. Selecting each switch item
2-8 items are provided for setting in each switch. By pressing and holding
the FEED button long, the printer goes to the next item and prints the
current setting of the item. Repeat pressing and holding till the item you
want to change is reached.
Power ON notify setting (Valid
(With memory switch ranging from 7 to 10, ERROR LED goes on only at the factory setting.)
4. Changing the setting
When the item you want to change is printed, press the FEED button short.
The changed set value is printed. (When change of set value is repeated,
the original set value is recovered). When you press the FEED button long,
the set value is accepted and then the printer goes to the next setting item.
(No indication for 0/1 with memory switch ranging from 7 to 10)
)
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0: OFF state
1: ON state
OFF state: ERROR LED OFF
ON state: ERROR LED ON