ON LINE Switch
Press this switch to place the printer alternately on line or off line. When the printer is on line, the ON LINE LED lights. The printer must be on line to receive data from the host computer. When the printer is on line, the display indicates the current print mode, and only the PAPER ADV control panel switch functions. When the printer is off line, the display reads OFFLINE READY. All switches are active (except the ENTER switch unless it has been unlocked), and the printer cannot communicate with the host computer. The printer must be off line to change printing format or configuration and goes off line automatically if a fault occurs.
If the display shows OFFLINE HEX DUMP (a diagnostic selection), pressing the ON LINE switch causes the printer to go on line, and data from the host computer is printed in “hex dump” format. The display shows ON LINE HEX DUMP. Pressing the ON LINE switch again takes the printer back to the OFFLINE HEX DUMP state.
CLEAR Switch and CHECK Indicator
If a fault condition occurs, a fault message appears on the Message Display, and the CHECK indicator flashes alternately with the ON LINE indicator. After you correct the fault condition, press the CLEAR switch. The fault status will be validated and the display updated. If all faults were corrected, the dis- play will indicate the printer is off line.
In addition, the CLEAR switch has the special functions noted below. Except when used to reset the printer (#1 below), the CLEAR switch operates only when the printer is off line.
1.Simultaneously pressing CLEAR and R/S (RUN/STOP) resets the printer. You may reset the printer at any time, on line, off line, or while printing. However, it is recommended that you reset the printer only when it is off line and no data is in the buffer, or loss of data may result.
2.CLEAR is used with the PAPER ADV switch to set
3.Pressing CLEAR when one of the configuration parameter values is displayed places the printer back to off line status. Refer to the Control Panel Configuration Diagram in the Configuration chapter.
4.Pressing CLEAR silences the audio alarm during a fault condition.
6/8 LPI Switch
Press this switch to display the current line spacing in lines per inch (lpi). Subsequently pressing this switch steps the selection through 6, 8 and 10.3 (7/72”) lpi. Use of the ENTER switch is not required to select the line spacing. The LED next to this switch lights when line spacing is other than 6 lpi. The 6/8 LPI switch functions only when the printer is off line.
NOTE: Line spacing control from the host computer overrides the switch setting. Control codes from the host computer can select line spacing other than the 6, 8, or 10.3 lpi and is reflected on the message display.
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