Epson EPL-5800, Service Manual

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EPSON EPL-5800 Revision B
Product Description Service Call Errors 43
1.7 Special Operation
The function described below are activated by holding the specified switches down
when turning the printer on.
HEX DUMP
All print data are printed in ASCII hexadecimal value. Any interface equipped with the
printer is valid for receiving the data in this mode. The following informaiton is
printed.
!
A list of received data converted in ASCII hexadecimal value.
(Non-readable code is printed as “.”)
!
Page number
TONER RESET
Performing this operation initialize the toner counter value to “EnnnnF”.
PHOTOCONDUCTOR LIFE RESET
Performing this operaiton initialize the photoconductor unit life counter to “100%”.
EEPROM INITIALIZATION
This operation clears the contents of EEPROM with “00H” and set the factory default
parameters.
PANEL SETTING VALUE INITIALIZATION
This operation initialize all setting informaiton of common functional environment and
I/F specific functional environment and set the factory default values.
UPDATE PROGRAM ROM
This operation activates the Code ROM-DIMM update function.
1. By executing the operation, the printer starts normal power-on sequence. Keep
depressed all buttons until “Paper”, “Toner” and “Memory” LEDs are turned on after
completing RAM check.
2. Next, release all the buttons and “Online” LED starts blinking and all other LEDs are
turned on. Approx. 3 seconds later, “Continue” and “Form Feed” LEDs are turned off
and this indicates that the printer is ready to receive the firmware data via parallel I/F.
3. After completing update, “Online” LED is blinking and all other LEDs are turned off.
Table 1-27. Special Operation
Function Key
Hex Dump Form Feed
Toner reset On Line + Form Feed
Photoconductor life reset On Line + Continue
EEPROM initialization On Line + Co Alt
Panel setting value initialization Continue
Update program ROM On Line + Form Feed + Co Alt
C A U T I O N Note that this operation clears all setting information and a total print
counter value as well.