44015503TH Rev. 1
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Oki Data CONFIDENTIAL
5. MAINTENANCE MENUS
5.4 Setup after part replacement
ii. When the printer operates properly, the operator panel shows ONLINE.
When the printer has an error, it indicates an error, but the printer is
internally online, being ready to communicate.
2
. When the EEPROM on a board to be removed cannot be accessed:
When SERVICE CALL 104 (Engine EEPROM Error) is displayed, or data cannot be
read from the EEPROM, after replacing the board to a new one, follow the following
procedure to perform operation by using Maintenance Utility:
(
1) PU serial number setting (applicable Maintenance Utility operation manual,
section 2.4.1.1.2 about PU board setup)
A
SAP serial number is assigned to the printer. The number is placed at
the top of the serial number label of the printer, consisting of total twelve
characters -- two characters that indicates a production place, two characters
that indicates a month and year, six characters that indicates a manufacture
number (sequence number) and two characters that indicates revision number.
• T
he PU serial number is ten characters from the SAP serial number. The
rest two characters are the revision number.
• T
he PU serial number is set in the PU serial number setting window
described in section 2.4.1.1.2.1 of the Maintenance Utility operation manual,
section 2.4.1.1.2 about PU board setup functionality.
• T
o assign a PU serial number to the printer, in the PU serial number setting
window, enter eleven characters, i.e. ten characters preceded by a single-
byte zero (0) (note a read PU serial number is ten characters). As shown in
the following serial number label example, the ten characters are the printer’
s the SAP serial number excluding the revision number.
The following describes the adjustments necessary after part replacement:
Replaced part Adjustment
LED head Note) Not necessary.
Drum cartridge (yellow, magenta,
cyan or black)
Not necessary.
Fuser unit Not necessary.
Belt unit Not necessary.
PU board Copying information stored in EEPROM, which
requires utility software.
CU board EEPROM replacement, which uses EEPROM
intended for use in a user printer.
Note) See section 4.2.6, LED Assy. for compatibility of replacement LEDs with the
LEDs to be replaced with them, and identification of those LEDs.
5.4.1 Notes on engine control board replacement
1. When the EEPROM on a board to be removed can be accessed (when SERVICE
CALL 104 (Engine EEPROM Error) is not displayed):
(
1) Using the PU board replacement function of Maintenance Utility (Maintenance
Utility operation manual, section 2.4.1.1.1 about PU board replacement
functionality), remove information from the EEPROM, and temporarily store it
onto an HDD of the computer where the utility is operated.
(
2) Using the PU board replacement function of Maintenance Utility (applicable
Maintenance Utility operation manual, section 2.4.1.1.1 about PU board
replacement functionality), copy the information into the EEPROM on a
replacement board.
Note! W
hen removing or writing information from/into EEPROM by using
Maintenance Utility, use the procedure shown below to place the printer to the
Forced ONLINE mode before accessing the EEPROM. An error message is
displayed even in the forced ONLINE mode when the printer has an error.
i
. When turning on the printer, press and hold down the BACK, MENU down-
arrow (
) and ENTER buttons in combination until STATUS MODE appears
on the operator panel.
Ten characters to enter, edited to eleven characters,
preceded by single-byte zero (0) (0AE01234567)
Revision number
Serial number label example
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