Citizen CT-S300, User Manual

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4.3 Cleaning the Print Head
1. Turn the printer power off.
2. Open the paper 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.
4.4 When the Paper Cover Cannot Be Opened
If the cutter blade remains protruded due to paper jam or for any abnormality,
opening the paper cover may be disabled.
In this case, do not open the paper cover forcibly. Insert a Phillips screwdriver
into the cutter lock releasing feed hole and turn it in the direction of arrow
(clockwise).
Use a #1 screwdriver.
When you find that both ends of the blade reached the lowest position, stop
turning the screwdriver. Open the cover and follow the procedure of removing
jam or other cause of trouble.
Cutter lock releasing feed hole
Phillips screwdriver