Sharp AR-5127 Series Printer Operation Manual page 17

PRINTER DOES NOT PRINT (3)
The printer is on, data has been received (DATA
indicator was blinking) but is not printed.
Check: Copy job being performed?
Solution: Wait until the copy job is complete. You
can also change jobs in the job status
screen. To change jobs, press the JOB
STATUS key on the machine's operation
panel and select "JOB OUTPUT".
Check: Is the "I/O TIMEOUT" setting too short?
Solution: Select a longer "I/O TIMEOUT" setting.
If a notice page is printed or an error message appears,
see the message.
NOTICE PAGE PRINTED
ERROR MESSAGES SHOWN DURING PRINTING
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