Service manual

12.2 RAM CLEAR
12.2.1 RAM (Memory Board) Clear Procedure
1. Before clearing the RAM, execute SP7-902 and SP7-903 to output the
current SP mode values.
NOTE: Clearing the RAM resets all SP and UP values, except the serial
number and main counter value, to the defaults. It is, therefore,
important to perform this step.
2. Perform SP5-801 to clear the RAM. Then turn copier OFF and then ON to
complete RAM Clear.
3. Perform SP7-914-3 to upload the main counter value into RAM. This data
will become the back-up counter value.
NOTE: If you do not execute SP7-914-3, SC901 will be displayed
indicating a counter problem.
4. Input the previous value in the following SP modes. They are needed for
the ACC procedure. (Look at the SP7-902 printout.)
SP4-8, SP4-10, SP4-11, SP4-426, SP4-427
SP4-431, SP2-303-1, SP2-303-2, SP2-915-1, SP2-915-2
5. Perform the forced process control self check (SP3-126), then check the
result (SP3-975).
NOTE: Wait 10 minutes before the forced process control self check.
6. Perform the auto color calibration procedure (see procedure 4.1.1).
7. Input the other SP mode values from the SP 7-902 output of step 1 above.
NOTE: To clear the counter log data, other than the main counter and
backup counter values, execute SP7-808 (Clear All Counters).
12.3 MAIN COUNTER
12.3.1 Main Counter Replacement
1. Replace the main counter.
2. Perform SP7-914-3 to overwrite the back-up counter value with the main
counter value.
3. Display the backup counter value by executing SP7-3-1 and SP7-3-2.
Ensure the backup counter value is the same as the main counter value.
NOTE: To display the main counter value, open the front cover. Defeat
the door switch interlock with the switch actuator. Press the
Counter key on the operation panel. This will display the main
counter value on the LCD (1: Bk scan 2: Full Color Scan).
Rev. 08/2000
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OTHERS
A166/A187/A189 5-98 SM
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