Table of Contents
Advertisement
24 February, 1999
Precautions when replacing the NV-RAM
[C]
The NV-RAM stores the counter value and the copier settings.
The procedure for replacing the NV-RAM on the main control board is given below.
Make sure you have the factory settings that come with the copier before beginning
the following procedure:
1. Print the SP mode values that have been modified from their default values,
using SP7-902.
2. Turn the main power switch off and unplug the power cord.
3. Remove the right upper cover [A] (1 screw).
4. A259/A260 only: Remove the shield plate [B] (3 screws)().
5. Replace the NV-RAM [C] at IC106 (for A258) or IC104 (for A259/A260) on the
main control board.
6. Assemble the machine in the reverse order of disassembly.
7. Turn on the main power and enter the machine's device number in the factory
set mode (consult your executive for details).
8. Execute SP5-801 (RAM Clear).
9. Enter the SP mode changes you printed in step 1.
9. Perform the auto color calibration (ACC) procedure.
10. If the color balance after the ACC is not satisfactory for the customer, adjust the
ACC target using SP4-501 (for copier mode) and SP4-502 (for printer mode),
and/or do the KCMY color balance adjustment.
11. A259/A260: Calibrate the touch panel.
[A]
[B]
A259R112.WMF
6-85
SYSTEM AND ELECTRONICS
A259I110.WMF
Advertisement
Table of Contents
