Self-Test; Hexadecimal Dump Function; Paper Out Detection Function; Cover Open Detection - Epson C117001-N - DFX 5000+ B/W Dot-matrix Printer Service Manual

Product Descrhtion
LED Indicators
POWER (green):
PAPER OUT (red):
PAUSE (orange):
TEAR OFF (orange):
TOP OF FORM (green):
PITCH (3) (green):
FRONT (2) (green):
(red):
REAR (2) (green):
(red):

1.4.2 Self-test

The printer's self-test (self printing) function checks the following
- Control arcuit
Printer mechanism
Print quality
To run the self-test in draft* mode, hold down the LF/FF LOAD button and turn on the printer. To
run the self-test in NLQ mode, hold down the TEAR OFF button and tmm on the printer.
The self-test can be interrupted by pressing the PAUSE button. To end the self-test, press the
PAUSE button and then turn off the printer.
The self-test prints the following:
- Program ROM version number
– Built-in characters
To print the current DIP switch settings,
* The printer does not print the self-test in draft mode if NLQ mode is selected using
DIP switch 1-3.

1.4.3 Hexadecimal Dump Function

The hexadecimal dump function prints the data the printer receives in hexadecimal format. To
print a hexadecimal dump, hold down
printer. "HEX DUMP MODE" is printed on the first line. Then 16 bytes an? printed in hexadedmal
on each line, and the ASCII character correspondkg to each byte is printed on the right side. "." is
printed if there is no corresponding ASCII character (such as, for a control code). If less than 16
bytes remain, they can be printed by pressing the PAUSE button. To cancel hexadecimal dump
mode, turn off the printer.

1.4.4 Paper Out Detection Function

When the paper out sensor detects the printer is out of paper, the printer automatically enters
pause mode. Load new paper properly, and then press the PAUSE button to turn off pause mode
so the printer is ready to print.

1.4.5 Cover Open Detection

When the printer cover is opened, the printer stops printin& beeps 4 times with 0.1 second
intervals, and enters pause mode. Close the printer cover and press the PAUSE button to turn off
pause mode so the printer is ready to print.
1-18
Lit when the printer is turned on.
Lit when the printer is out of paper.
Flashes when there is a paper jam.
Lit when the printer is in pause mode.
Lit when the printer is in tear off mode.
Lit when the printer is in TOF mode.
The lit PITCH LED indicates the selected pitch.
Lit when the front paper path is selected with paper loaded onto the
front tractor.
Lit when the front paper path is selected with no paper loaded onto
the front tractor.
Lit when the rear paper path is selected with paper loaded onto the
rear tractor.
Lit when the rear paper path is selected with no paper loaded onto
the rear tractor.
PAUSE button and turn on the printer.
hold down the
the LF/FF LOAD and TEAR OFF
buttons and turn on the
Rev. A