ii Confidential
CHAPTER 8 MAINTENANCE MODE
Describes the maintenance mode which is exclusively designed for the purpose of checks, settings
and adjustments using the keys on the control panel.
In the maintenance mode, you can update memory (EEPROM: electrically erasable programmable
read-only memory) for setting the CIS scanner area, for example. You can also customize the
EEPROM according to the shipment destination of the machine concerned. In addition, you can
perform operational checks of the LCD, control panel PCB or sensors, perform a print test, display
the log information or error codes, and modify firmware switches (WSW).
CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING
Details error messages and codes that the incorporated self-diagnostic functions display if any
error or malfunction occurs. If any error message appears, refer to this chapter to find which
components should be checked or replaced.
The latter half of this chapter provides sample problems that could occur in the main sections of
the machine and related troubleshooting procedures. This will help service personnel pinpoint and
repair defective components.
APPENDIX 1 SERIAL NUMBERING SYSTEM
Shows the location of serial number labels put on some parts and lists the coding information
pertaining to the serial numbers.
APPENDIX 2 FIRMWARE INSTALLATION
Provides instructions on how to update firmware stored in the flash ROM on the main PCB or load
firmware to a new main PCB from the host PC.
No hardware replacement is required for updating.
APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION
Lists the customizing codes for the various preferences exclusively designed for each destination
(e.g. language). Those codes are stored in the memory (EEPROM) mounted on the main PCB. If
the main PCB is replaced with a new one, therefore, you will need to set the proper customizing
codes with the machine in the maintenance mode.
APPENDIX 4 FIRMWARE SWITCHES (WSW)
Describes the functions of the firmware switches, which can be divided into two groups: one is for
customizing preferences designed for the shipping destination (as described in Appendix 3) and
the other is for modifying preferences that match the machine to the environmental conditions.
Use the latter group if the machine malfunctions due to mismatching.
APPENDIX 5 WIRING DIAGRAM
Provides the wiring diagram that helps you understand the connections between PCBs.
APPENDIX 6 CIRCUIT DIAGRAMS
Provides the circuit diagrams of the NCU PCB and power supply PCB.
APPENDIX 7 LOCATION TO ATTACH THE SPRAY CAUTION LABEL
This manual describes the models and their versions destined for major countries.
The specifications and functions are subject to change depending upon each destination.
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