Epson LQ 300 - Self-Test Function; Hexadecimal Dump Function

LC?-300 Service Manual
Product Description
Table 1-16. Paper Feeding Functions
Tractor Feed
Operations
Not Paper Out Paper Out State
Press LF/FF and
Paper park (*1)
Font buttons at the
—
same time
Insert a sheet to the
manual insetiion slot
— —
Friction Feed
I
Not Paper Out
Line feed
Eject
—
—
Paper Out State
Load a sheet (*2)
Load a sheet (*2)
—
After 2 seconds
load the sheet
manuallv (*2)
(*l):~@n the printer is in tear-off state, the.w functions a~ performed after returning from the
tear-off position.
(*2) Gce a manually inserted sheet is loaded, the printer enters manual insertion mode. After
that, even if data remains
in the buffer, the printer goes into a paper out error state at the end
of every a sheet and waits for insertion of the next sheet. The CSF is enabled again by sheet
loading operation from the CSF or by initialization.
1.4.2 Self-test Function
W section explains how to run the self-test.
1. Hold down the
LF/FFbutton and turn on the printer to start the self-test.
2. If paper is not loaded, the printer attempts to load it.
3. The printer prints alphanumeric characters continuously.
5. Quit self-test mode printing bypressingthe Pause button and turning the printer off.
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.
2.
3.
4.
5.
6.
Turn on the printer while holding down the LF/FF and Font buttons.
If paper is not loaded, the printer attempts to load it (either single sheet or continuous paper).
If the printer cannot Ioad the paper, it indicates a paper-out error. In this case, insert paper
again, and press the Pause button.
The printer waits for data after printing the message “Hex dump(*).”
“Hex Dump”:
English or German is selected
“Codes Hexadecirnaux”:
French is selected
“Dump
esadecimale”:
Italian is selected
“Volcado hex”:
Spanish is selected
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 hexadecimal dump printing by pressing the PAUSE button and turning the printer off.
Note:
In hex dump mode, the character table depends on the default setting, and 10 cpi draft is
selected automatically.
Rev. A
1-17