Citizen Systems CBM-820 - Handbuch (Seite 38)

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4.9.6 Errors
There are three types of errors: recoverable errors that require some action by
you before they clear, non-recoverable errors that require servicing by an
authorized service provider, and a data receive error. Errors are indicated by and
audible buzzer and the indicators.
(1) Recoverable Errors
(2) Non-recoverable Errors
(3) Data Receive Error
This type of error is caused whenever a problem is encountered during data
receipt. The method used by the printer to recover from a data receive error
depends on the current command mode.
Error Type
Indicators
Recovery
POWER RELEASE PAPER OUT
Paper jam
Flashing
Correct the cause of the problem and
then press RELEASE.
Carriage motor lockup
Abnormal home position signal
Abnormal timing signal
Error Type
Indicators
Recovery
POWER RELEASE PAPER OUT
RAM read/write
Off On On
Turn off the printer, then after waiting a
few minutes, turn the printer back on. If
the printer does not recover, contact
your nearest service provider.
CPU lockup
Data Receive Error Recover Procedure
Memory switch 4-0=0 : The printer prints a question mark.
Memory switch 4-0=1 : The printer discards the received data.