Setup After Replacement Of Parts; Precautions On The Replacement Of Engine Control Pcb - Oki C5500 Maintenance Manual

5.4

Setup after replacement of parts

This subsection describes the necessary adjustments to be made when parts have been replaced.
Replaced Part
LED Head
Image Drum Cartridge
(Y, M, C, K)
Fuser Unit
Belt Unit
PU (PRX PCB)
CU(SP1 PCB/TBH PCB)

5.4.1 Precautions on the replacement of engine control PCB

1. When EEPROM of the PCB to be removed is accessible
(When SERVICE CALL 105 [Engine EEPROM Error] is not displayed)
(1) Read the EEPROM information from the PCB to be removed by using the PU PCB
replacement function (Subsection 2.4.1.1.1 PU PCB replacement function in the Maintenance
Utility Operation Manual), and save it provisionally on the HDD of the PC.
(2) Copy the EEPROM information saved on the HDD to the EEPROM of the PCB to be newly
installed, by using the PU PCB replacement function (Subsection 2.4.1.1.1 PU PCB
replacement function in the Maintenance Utility Operation Manual).
Note! To download and write the EEPROM information by the maintenance utility, access the
EEPROM after placing the printer in the "Forced ONLINE mode" by the procedure
described below. Notice that, if the printer has an error currently issued, the error is also
displayed in the Forced ONLINE mode.
1. When turning on the printer, press and hold down the [BACK]+[MENU]+[ENTER]
keys, until "STATUS MODE" is displayed on the operator panel.
2. Thereafter, the "ONLINE" indication will appear if the printer is in normal condition. If
the printer has an error, it will be displayed. However, the printer is in ONLINE status
internally and, therefore, ready to hold communication.
2. When EEPROM of the PCB to be removed is inaccessible
If the PCB to be removed causes SERVICE CALL 105 (Engine EEPROM Error) to be displayed
on the operator panel, or the EEPROM data cannot be downloaded, first replace it with a new
PCB, and then, work by the following procedure using the maintenance utility:
(1) Setup of PU Serial Number
(Subsection 2.4.1.2 Setup of PU PCB of the Maintenance Utility Operation Manual)
The printer has a SAP Serial Number applied. The 12-digit SAP Serial Number is marked in
the top line of the serial number label, and is made up of two digits for production base, two
digits for manufacturing year and month, six digits for serial No. (Sequence No.), and two
digits for Revision.
• The PU Serial Number is a 10-digit number excluding the two digits for Revision from
the 12-digit SAP Serial Number.
• The number should be set on the "Subsection 2.4.1.1.2.1 PU Serial Number setup"
screen in "Subsection 2.4.1.1.2 PU PCB setup function" of the maintenance utility. •
Set in the "2.4.1.1.2 PU serial number setting" screen of "2.4.1.1.2.1 PU board setting"
of the maintenance utility.
43085101TH Rev.1
Not necessary
Not necessary
Not necessary
Not necessary
Necessary to copy EEPROM information. Utility required.
Necessary to copy EEPROM information. Utility required.
Oki Data CONFIDENTIAL
Adjustment
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