Oki C7200 Service Manual page 253

4.2.2 Precautions in replacing EEPROM
When the EEPROM is not removed from the board and placed on the new board at the time of (engine controller board (71K PWB)) replacement, or when the
EEPROM is replaced with new one, the version read (fuse cut) function shown in Section 2.14 is disabled. The printer must be switched from the factory mode to
the shipping mode using the following setting procedure:
Changing the setting using operator panel
1. Remove the main controller board.
2. While holding the (1) and (4) keys down, turn the power on to enter the engine maintenance mode (level 1).
3. With "ENGINE DIAG MODE XX.XX" on the display, press the (2) and (4) keys to enter the engine maintenance mode (level 3).
4. Press the (1) and (5) keys until 'LOCAL PARAMETER SET" appears on the upper display.
5. Press the (2) and (6) keys until "FACTORY WORKING MODE" appears.
6. While "FACTORY WORKING MODE" is being displayed, use the (3) and (7) keys to select a setting value.
7. Select "SHIPPING MODE" (fuse cut enabled), press the (3) and (7) keys in combination. Then, the mode name stops blinking and the set value is registered.
The life information on the belt, toner, IDs etc. is cleared due to replacement of the EEPROM. Take note that an error occurs in the each unit's life count until the
unit is replaced. Following is counts cleared after the replacement of the EEPROM.
Item
Fuser
Transfer Belt
Black Imaging Drum
Cyan Imaging Drum
Magenta Imaging Drum
Yellow Imaging Drum
Black Toner
Cyan Toner
Magenta Toner
Yellow Toner
Total Sheets Feed
Service Guide - C7000 Series
Count
Fuser Life
Transfer Belt Life
Each Imaging Drum Life
Toner Consumption
Printer Life
Chapter 4 Adjustments
Description of Count
A value in letter paper sheets converted from
the number of sheets fed after the installation
of a new fuser unit.
A value in letter paper sheets converted from
the number of sheets fed after the installation
of a new belt unit.
A value in letter paper sheets converted from
the installation of a new ID unit.
The number of dots printed.
The total number of page printed.
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