SERVICE PROGRAM MODE OVERVIEW
SM 3-1 B441
Printer Unit
B441
3. SERVICE TABLES
3.1 SERVICE PROGRAM MODE OVERVIEW
!
CAUTION
Before accessing the service menu, do the following:
Confirm that there is no print data in the printer buffer (the Data In LED
must not be lit or blinking).
If there is some data in the buffer, wait until all data has been printed.
3.1.1 HOW TO ENTER THE SP MODE
Entering the Service Mode
"
→ # → $ → % →
&
(Hold for more than 3 seconds until the SP mode
menu is displayed.)
Select “3” to enter the printer SP mode.
Exiting the Service Mode
Select “2” to exit from the printer SP mode.
NOTE: To make the settings effective, turn the main switch off and on after exiting
service mode.
3.1.2 SERVICE MENU TABLE
Description Function
A
BitSw#1 Set Adjusts bit switch settings.
Note: Currently the bit switches are not being used.
B
NVRAM Clear 1 Initializes the controller NV RAM except bit switches, NIB
settings, and log data.
C NVRAM Clear 2 Initializes the controller NV RAM except NIB settings.
D NVRAM Clear 3 Initializes the NIB NV RAM (NIB settings).
E Counter Clear Initializes all counters to zero.
F
Diagnostic Error Displays the most recent diagnostic error codes on the
LCD.
G Service Print Prints the service summary sheet.
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