Epson LX-300, Service Manual

Page: 22 / 107

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 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 a paper-out error. this 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 (.).
6.
Quit dump printing by pressing the PAUSE button and tumingtheprinter off.
Note: In hex dump mode, the character table depends on the default and 10 draft is
selected automatically.
1.4.4 Printer Status Indication
It describes how this printer indicates status and error conditions using and the beeper.
The symbols below describe the frequency of beeper sounds.
(
●
): The beeper sounds 100 rns with an interval of 100 ms between beeps.
(—): The beeper sounds interval 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
PAUSE light is on.
PAUSE light blinks and beeper sounds
PAUSE light is off
Beeper sounds (
● ●
. )
and PAUSE light blinks.
(light ratio=
PAUSE light blinks (light ratio=
Beeper sounds ( ————— ) and PAUSE light is on.
The combination of two FONT (1 and 2) is used to indicate the selected font.
Table 1-17. Font Selection
Selected Font
FONT 1 FONT 2
Roman
ON ON
Saris Serif
ON OFF
Draft OFF ON
Draft condensed
OFF OFF
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 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 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.
adjusted position is stored in non-volatile memory.
Rev.
1-15