Self-Test Function; Hexadecimal Dump Function; Figure 1-10 Self-Test Printout - Epson LQ-2170 Service Manual

Product Description

1.4.5 Self-test Function

Pressing the
the button while turning on the printer puts the printer in Draft self-test mode. You can stop the self-test
temporarily by pressing the
When pages are printed from the CSF, the first sheet is used for scaling the sheet length. Then, the maximum
number of printable lines is printed as the bottom line of the sheet and this number is saved in non-volatile
memory as the default page length. Page lengths are saved individually when a dual-bin CSF is in use.
The self-test prints out the following:
The maximum number of printable lines (only on cut sheets from the CSF)
The pattern of characters shown in the figure below.

1.4.6. Hexadecimal Dump Function

Pressing the
dump mode. In this mode, data received is printed out in hexadecimal format, along with the corresponding
ASCII characters. The function is useful to check data received from the host. If a received code is not a
printable ASCII character, the printer prints a period (.) in the ASCII column. When received data remains in
the buffer, that data is printed by pressing the
1-32
button while turning on the printer puts the printer in LQ self-test mode. Pressing
button, and you can exit the self-test mode by turning off the printer.

Figure 1-10 Self-test Printout

and buttons while turning on the printer puts the printer in hexadecimal
button.
Figure 1-11 Hexadecimal Printout
LQ-2170 Service Manual
Rev.A