15 January 1992SERVICE PROGRAM MODE
- Clear All Memory (SP99) -
CAUTION: Memory all clear mode (SP99) clears all the correction data
for process control and software counters, and returns all
the modes to the default settings. Normally, this mode
should not be performed.
This procedure is required only when the copier
malfunctions due to a damaged RAM Pack or when
replacing the RAM Pack by any reason.
1. Turn off the main switch.
2. Turn on DPS101-2 and short-circuit JPS101-C (Lower).
3. Turn on the main switch.
4. Enter "99" by the Decrease Quantity ("-") key and then press the Auto
Image Density key to view data.
5. Enter "1" by the Increase Quantity ("+") key and then press the Auto
Image Density key.
NOTE: The data "1" blinks 5 times when the above procedure is
completed.
6. Clean the used toner tank since the toner end counter has been cleared.
CAUTION: Skipping this step will cause the used toner overflow
condition not to be detected properly.
7. Replace the OPC drum with a new one.
CAUTION: Since the drum motor rotation time (SP57) for the drum
wear correction has been cleared, the old drum cannot be
used. If the old drum is used after all memory is cleared,
dirty background may occur.
8. Clean the optics, sensors, and inside of the copier if necessary.
9. Refer to the "FACTORY SETTING" table located on the upper inner
cover and enter the data for:
(1) SP60: Standard Image Grid Voltage Setting
(2) SP62: Standard ID Sensor Grid Voltage Setting
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