
Operator Manual
A–2
Table A–1. Display Messages
MESSAGE
Explanation and Corrective Action
ATTENTION
Explanation:
The host has sent the Bell Command
Corrective Action:
Corrective action depends on the reason the Bell Command
was sent. Contact your system operator.
Bad VFU Channel
Explanation:
A VFU channel command has been received from the host
requesting an illegal channel.
Corrective Action:
1. Correct data from host and retransmit.
2. Ensure the integrity of the printer ground connection.
Bad VFU Count
Explanation:
An incorrect number of bytes has been detected in a VFU
download.
Corrective Action:
Correct data from host and retransmit.
Buffer Overflow
Explanation:
A buffer overflow has been detected on the currently active
host interface. This is most likely caused by a host failure
to respond to a busy signal.
Corrective Action:
1. Ensure correct protocol has been selected.
2. Check wiring of I/O cable between host and printer. (See
the Applications Manual for a detailed explanation.)
Chnl Not Found
Explanation:
VFU Channel requested by the host computer cannot be
found.
Corrective Action:
1. Correct data from host, then retransmit it to the printer.
2. Ensure the integrity of the printer ground connection.
Ctrl Fault
Explanation:
This message indicates that a fatal fault has occurred in the
control processor.
Corrective Action:
Call your Customer Service Representative for repair.
Ctrl Link Flt
Explanation:
The Control Processor has detected a fault in the Main Pro
cessor to Control Processor link.
Corrective Action:
Call your Customer Service Representative for repair.
Data Overrun
Explanation:
A data overrun has been detected on the currently active host
interface. This is most likely caused by an incorrectly config
ured serial baud rate, data bits, or parity.
Corrective Action:
Check setting on Serial Baud Rate, Data Bits, and Parity
parameters through the printer control panel.
Font Dnld Error
Explanation:
An error has been detected during a font download.
Corrective Action:
Correct data and retransmit from host.
Graphic Check
Explanation:
This message indicates that the printer has received an
unprintable graphic. This message only appears if the Set
Graphic Error Action Command has been set properly.
Corrective Action:
Clear the message (Clear key), then place the printer back
Online. Confirm with host why Graphic check message was
sent.
Heap Overflow
Explanation:
Graphics memory space is full and the printer cannot accept
or process data. Printer will reset and data will be lost.
Corrective Action:
Insert line terminators in data stream so the printer will pro
cess the data, then retransmit the data.
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