Service Mode; Heaxadecimal Dump Mode; Eeprom Initialize Mode; Factory Reset Mode - Epson EPL-5500 Service Manual

EPL-5500 Service Manual

1.4.3 Service Mode

This printer has the following four service modes:
Hexadecimal dump mode
EEPROM format mode

Factory reset mode

Default setting mode

Each service mode can be activatted selectively, by turning the printer on while hold down the
button and release it at the corresponding timing shown in table below.
Order Pattern
1
Pattern 0-0
2
Pattern 0-1
3
Pattern 1
4
Pattern 2
5
Pattern 3
6
Pattern 4
*1: Can be performed by the user.
1.4.3.1 Hexadecimal Dump Mode
Hexadecimal dump mode is a useful tool in troubleshooting data control problems. To enter
hexadecimal dump mode, release the button at the mode select timing "Pattern-1". To quit the
hexadecimal dump mode, turn off the printer or perform the warm-boot operation.

1.4.3.2 EEPROM Initialize Mode

EEPROM initialize operations are required only when the main board or EEPROM is replaced and
these operations are specified in the accompanying documentation.
This mode resets all user settings to the factory default settings and clears the printer status
information (page counter and jam counter). To perform EEPROM initialize mode, release the
button at the mode select timing "Pattern-2" and press the bottun again within 2 seconds from the
release. The LED lights flashes alternately during the initialization. If the button is not pressed
within 2 seconds after release, the printer enters nomal state without initialize operation.
1.4.3.3 Factory Reset Mode
The factory reset mode resets the printer settings to the factory default settings (the page counter
and jam counter are not cleared). To enter factory reset mode, release the button at the mode select
timing "Pattern-3" and press the button again within 2 seconds after release. The LED lights flashes
alternately during the reset operation. If the button is not pressed within 2 seconds after release, the
printer enters the nomal state without reset operation.
Rev. B

Table 1-13. Service Mode Select Timing

LED
(Yellow)
ON
OFF
ON
OFF
ON
OFF
LED
(Red)
ON
NA
OFF
NA
OFF
Hexadecimal dump mode
ON
EEPROM Initialize mode
OFF
Factory reset mode
OFF
Default setting mode *1
General Description
Mode
1-23