Hexadecimal Dump Function; Printerstatus Indication; Selected Font; Paper Position Adjustments - Epson LX-300 Service Manual

1.4.3 Hexadecimal Dump Function

The hexadecimal dump is a useful tool for troubleshooting data control problems. This section
describes how to run a hex dump.
1. Turn on the printer while holding down the LF/FF and FONT buttons.
2. If paper is not loaded, the printer attempts it (either single sheet or continuous paper).
3. If the printer cannot load the paper, it indi~tes a paper-out error. In this case, insert paper
again, and press the PAUSE button.
4. The printer waits for data after printing the message "Hex dump."
5. Received data is printed as both hexadecimal codes and ASCII characters. If a corresponding
printable character does not exist, the printer outputs a period (.).
Quit hexadecimzd dump printing by pressing the PAUSE button and tumingtheprinter off.
6.
In hex dump mode, the character table depends on the default settin& and 10 cpi draft is
Note:
selected automatically.
1.4.4 Printer Status Indication
It describes how this printer indicates status and error conditions using LEDs and the beeper.
The symbols below describe the frequency of beeper sounds.
( ): The beeper sounds tbr 100 rns with an interval of 100 ms between beeps.
(—): The beeper sounds for5~mswithan interval of100ms between beeps.
While initialize signal is active:
During initialization:
Ready to print or printing:
Paper-out error:
Tear-off:
Operating error, fatal error:

1.4.5 Selected Font

The combination of two FONT LEDs (1 and 2) is used to indicate the selected font.
Selected Font
Roman
Saris Serif
Draft
Draft condensed

1.4.6 Paper Position Adjustments

To enter adjustment mode, press the PAUSE button for three seconds, until the printer beeps once
and the FONT lights blink to indicate that the adjustment operation is available. If the printer state
is not one of the conditions shown below, this operation is ignored.
. TOF position adjustment:
The position mn be adjusted just after the paper is loaded.
. Tear-off position adjustment:
The position can be adjusted when paper is actually located at the tear-off position.
In the adjustment mode, press the LF/FF button to feed paper forward and the FONT button to
feed paper backward. You can cancel adjustment mode bypressingthe PAUSE button or inputting
a print command. The adjusted position is stored in non-volatile memory.
Rev. A
PAUSE light is on.
PAUSE light blinks and beeper sounds
PAUSE light is off
Beeper sounds ( and PAUSE light blinks.
. )
(light on:off ratio= 6:1)
PAUSE light blinks (light on:off ratio= 1:6)
Beeper sounds ( ————— ) and PAUSE light is on.
Table 1-17. Font Selection
FONT 1
ON
ON
OFF
OFF
FONT 2
ON
OFF
ON
OFF
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