Chapter 77-11- HEAD DOT CNT.1Displays the counts of dots of individual colors of the currently installed print head.- HEAD DOT CNT.2Displays the cumulative count of dots of individual colors.- PARTS CNT.Displays the status of the consumable parts replacement counter.g) SETTINGAllows you to make various settings. T-7-24- INITIALIZEThe DISPLAY histories, ADJUST settings, COUNTER values, and other parameters can be cleared individually.T-7-257.2 Special Mode7.2.1 Special Modes for Servicing 0013-2122This printer supports the following special modes in addition to the service mode:- PCB replacement mode- Download mode1. PCB replacement modeThis mode is used when replacing the main PCB or MC relay PCB.By executing this mode,- Backup data of the settings and counter values stored in the MC relay PCB are moved to the new main PCB.- The data such as the settings and counter values are copied to the MC relay PCB.a) Entering the PCB replacement modeFollow the same procedure as that for entering the service mode.(With the "Paper Source" button and "Information" button pressed down, turn on the "Power" button.)When the printer starts up, compare the serial number memorized in the main PCB's EEPROM with that memorized in the MC relay PCB's EEPROM. If they donot match, or no serial number is memorized in either EEPROM, enter the PCB replacement mode.While you are in the PCB replacement mode, the MESSAGE LED, roll media LED, and ONLINE LED are lit.b) ProcedureSelect "CPU BOARD" or "MC BOARD" using the [ ] and [ ] buttons, and then press the [OK] button to determine it.- CPU BOARDSelect this after replacing the main PCB.The data in the MC relay PCB is copied to the main PCB.- MC BOARDD-CNT 17-24 Cumulative number of sheets of A4-equivalent paper equal to or larger than 17 inches but smaller than 24inches (data size)sheetsD-CNT 17 Cumulative number of sheets of A4-equivalent paper smaller than 17 inches (data size) sheetsDisplay DescriptionPth ON/OFF Turns on/off the (Pth head pulse rank) control function.Default: OnRTC DATE Set the RTC. The procedure is the same as in the user mode.yyyy/mm/dd The initial value is 00:00, January 1, 2006.TIME hh:mm * The display order of year, month, and day is defined in "Date Format".Display DescriptionWARNING Initialization of DISPLAY > WARNINGERROR Initialization of DISPLAY > ERRORADJUST Initialization of value of fine band adjustment by user and initialization of scale adjustment valueThe automatically adjusted value is not initialized.W-INK Initialization of COUNTER > PRINTER > W-INKCARRIAGE Initialization of COUNTER > CARRIAGEPURGE Initialization of COUNTER > PURGEINK CHECK * The refill ink usage history cannot be initialized.INK-USE CNT Initialization of COUNTER > INK-USE2CUTTER-CHG CNT Initialization of COUNTER > EXCHANGE > CUTTER EXC.Counting up of COUNTER > CLEARW-INK-CHG CNT Initialization of COUNTER > EXCHANGE > MTC EXC.Counting up of COUNTER > CLEARHEAD-CHG R CNT Initialization of COUNTER > EXCHANGE > HEAD R EXC.HEAD-CHG L CNT Initialization of COUNTER > EXCHANGE > HEAD L EXC.PARTS-CHG CNT Initialization of COUNTER > EXCHANGE > UNIT A EXC.Counting up of CLEAR > UNIT EXC.PARTS COUNTER Initialization of all COUNTER > PARTS CNT.Display Description Unit