Citizen Systems Compact desk-top dot matrix printer CBM-910 Type II - Manual (Page 25)

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7. BUSY (Busy signal clear timing)
[*Standard, CBM-910] *1
Selects the clear timing of Busy signal for parallel I/F.
Standard: Clears after confirming the rise of STB signal.
CBM-910: Clears after completing data storage to input buffer.
8. Buffer
[*2k bytes, 72 bytes]
Select buffer size.
*1: For ACK timing and Busy timing, only setting the parallel board is available.
4.7 Paper-Near-End, Mechanical Alarm, Memory Error
(1) Paper-near-end
Printing paper shortage is detected and informed with SEL lamp blinking at 0.5-
second intervals, where printing is suspended. At this time, power supply to the
motor and printing solenoid is stopped with BUSY signals output in the host
computer. To recover from Paper-near-end state, set new paper and press SEL
switch twice. LF functions normally.
(2) Mechanical alarm
On occurrence of locked motor, any kind of trouble in the mechanism is suspected.
Power supply to the motor and printing solenoid is stopped and BUSY signals
are output in the host computer. SEL lamp is then blinked at 1/4-second intervals.
To recover from alarm state, eliminate the trouble cause and press SEL switch
twice. If it is in the course of printing, printing is started at the beginning of the
interrupted line. (Content of the input buffer is still held.) However, this dose not
apply to a case where power has been cut due to a severe trouble.
(3) Memory error
This error is developed when any abnormality is detected by the self-diagnosis
of memory by the CPU when the equipment is powered on. A BUSY signal is
output to the host causing the POWER lamp and SEL lamp to blink simultaneously
at 1/10-second intervals. This error is an unrecoverable error. Turn the equipment
power off and contact your CITIZEN SYSTEMS dealer.
(4) Memory switch setting error
This error is developed when any abnormality is detected in the setting of memory
switch when the equipment is powered on.
The alarm causes the POWER lamp to blink at 1/10-second intervals. This error is
recovered by resetting the memory setting with a command and turning the
equipment power on again.