Error Handling; Peripheral Circuit Errors; Operation Errors - Citizen BD2-2880 User Manual

Control board for mlt-288/mlt-289
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8. ERROR HANDLING

8.1 Peripheral Circuit Errors

These errors are detected at power-on or initialization just after a reset.
(1) Error types
Error
Memory error
Cutter error
(2) External signal outputs
Pin No
20
22
27
38
(3) Resetting methods
Error
Memory error
Cutter error

8.2 Operation Errors

(1) Error types
Error
No paper
Head –up
VH voltage error
Head temperature error
Cutter lock
(ACS-220-5V)
Caution: The 8.5V upper-limit voltage for VP voltage error is only an assumptive voltage just
after charging the battery when using the battery power. It cannot be normally used. A
normal maximum voltage is 7.2V.
(2) External signal outputs
The CPU made a self-diagnosis of the circuit and detected an error with the external
RAM.
With the auto cutter enabled at the function selection terminal (DS1-1), the auto
cutter (ACS-220-5V) is not connected to the cutter connector (CN4).
Signal Name
LED output. For a blinking pattern, see 8.3 Error Indication.
ERROR
Serial interface
DTR
Parallel interface
BUSY
Parallel interface
FAULT
Unrecoverable
After turning off the power, connect the auto cutter (ACS-220-5V) or turn off the
function selection terminal (DS1-1) and turn on the power again.
The printing paper set is not set
The head-up lever is at its up position
A VH voltage is beyond its allowable range (4.2 to 8.5V)
A head temperature is less than 0˚C or 65 ˚C or higher.
When driving the cutter, the cutter is locked due to an external factor (Paper
jam, etc.).
Description
Remarks
Resetting Method
Description
16
BD2-2880/2890 User's Manual

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