Ricoh A250 Service Manual page 627

4. SERVICE TABLES
4.1 PRECAUTION
Do not turn off the machine, or switch the controller off-line, while the data-in LED
is blinking or lit. Some data that the controller has received for raster image
processing may be lost.
Check with the customer before maintenance to avoid such data loss.
4.2 SERVICE PROGRAM MODE OVERVIEW
4.2.1 HOW TO ENTER THE SP MODE
Entering and exiting SP mode is the same as for copier and fax, as follows.
NOTE: Before using any of the SP modes, disconnect the parallel and Ethernet
cables.
Entering Printer SP mode
→ →
Select "4. Printer". The Printer SP mode main menu appears.
Exiting SP mode
Select "3. End" from the Printer SP mode main menu, then exit the SP mode
main menu.
4.2.2 SP MODE TABLE
SERVICE MENU
Title
A BitSw#1 Set
B BitSw#2 Set
C BitSw#3 Set
D BitSw#4 Set
E NVRAM Clear 1
F NVRAM Clear 2
G NVRAM Clear 3
H Counter Clear
I Diag. Error
K Service Print
SM
→ →
(Hold for more than 3 seconds.)
Adjusts bit switch settings.
Refer to section 4.3.1 for details.
Note: The bit switches are not used at the moment.
Initializes the controller NVRAM except bit switches,
NIB settings, and log data.
Initializes the NVRAM on the controller.
Initializes the NVRAM on the NIB.
Initializes all counters to zero.
Displays diagnostics error codes on the LCD.
Prints the service summary sheet.
4-1
SERVICE TABLES
Description
A250