CITIZEN CT-S651 - Manual (Page 38)

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z Paper-end
The end of the roll of paper is detected at two stages, paper near-end and
paper-end.
When paper near-end is detected, the PAPER LED lights. Prepare a new paper
roll.
When paper end is detected, the PAPER LED and ERROR LED light. Load a
new paper roll.
z Paper cover open
Do not open the paper cover during printing. If the paper cover is opened, the
ERROR LED lights or flashes. Check the paper and always pull a few cm of
paper straight out of the printer before closing the paper cover. Printing
resumes. Sending a command to resume printing may be required depending
on the memory switch setting.
z Cutter locked
If the auto cutter cannot move because of a paper jam or something else, the
ERROR LED flashes. Remove the cause of the trouble and press the FEED
button. If the auto cutter still does not operate and the paper cover does not
open, refer to “4.3 Clearing a Cutter Lock (2)”.
z Print head hot
When you print dense characters, dark images, or for an extended time in a
hot environment, the print head temperature increases. If the print head
exceeds a specified temperature, the printer stops printing and waits for the
print head to cool. When this happens, the ERROR LED flashes. Printing
resumes automatically when the print head cools.
4.6 Error Messages
Refer to 4.3 Clearing a Cutter Lock (2)