Fujitsu KD96009-0648 - Cleaning the Print Head; Self-Printing

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4.3 Cleaning the Print Head
1. Turn the POS terminal power off.
2. Open the printer cover.
3. Wait several minutes. Wipe off any debris on the heating element of the
head using a cotton swab soaked in ethyl alcohol.
CAUTION!
The print head is hot immediately after printing. DO NOT touch it with your hand. DO
NOT touch the heating element of the head with a bare hand or metal object either.
Print (thermal) head
4.4 Self-printing
Insert paper into the printer. With the FEED button pressed and held, turn the
printer power on, keep the FEED button held for about 1 second, and then
release the FEED button. The printer starts self-printing. The printer prints
model name, version, DIP switch setting, memory switch setting, and built-in
fonts.
Memory
switch
setting
Firmware version
Buffer size