Service Manual
General
1.4 OPERATING INSTRUCTIONS
This section describes
the functions performed
through the control panel, such as test print,
hexadecimal dump, and
functions.
1.4.1 Control Panel
The printer control panel gives you easy control over most common printer operations. The panel
consists of a liquid crystal display (LCD), indicator lights, and buttons.
Display (LCD)
1
LEVEL 2
EXIT
o
0
RESET
COPY END CONTINUE
FEED
Figure 1-4. Control Panel
A 20-character (5 x 7 dot matrix) l-row
crystal display (LCD) unit that indicates printer
status. A
of printer
can be displayed and
mode.
Indicator lights
■
ON
LINE
ON:
Communication with the host is possible.
OFF:
Communication with the host is impossible.
Flashing:
This state occurs when the system cannot shift from off line to on line, or vice versa.
■
F E E D
This LED indicates the data processing condition for each interface channel: S, P, and O.
ON:
Indicates that received data is stored in the printer that has not been printed out.
However, the LED does not light up when only non-printable data
ds and
other control codes) is stored.
OFF:
Indicates there is
no
printable data remaining in the printer.
Fast flashing:
Indicates that the printer is in the process of receiving data from the host.
Slow flashing: Indicates data has arrived on a non-active channel (in auto-sense operation).
CONTINUE
Flashes when an error is detected or a maintenance procedure is needed. An error message appears
on the display at the same time.
Rev.
1-19
