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3.12.6 DRAM Check
This mode is used to test the DRAM memory, or document memory.
Note: When this test is performed, an All DRAM Clear will be performed by the unit. The All RAM
clear erases all user settings and resets all memory switches, machine parameters and unique
switches to factory defaults.
This is a read/write test that requires a few moments to complete.
Note: Perform a DRAM test whenever a memory upgrade is added to the unit.
1. Press PROGRAM, *, B. Then press One-touch F.
DRAM Check
2. Enter One-touch A, B, C, D, depending on the amount of DRAM in the unit. Please refer to the
following table:
A: Standard 2 MB
B: If 2 MB upgrade board is installed
C: If 4 MB upgrade board is installed
D: If 8 MB upgrade board is installed
Then press START.
The values FF, AA, 55, and 00 are written to, then read from, memory. The results are shown in
the display.
If the read/write test is successful, the display will show “OK”.
M:OK
M:OK IC1:OK
M:OK IC1:OK IC2:OK
M:OK IC1:OK IC2:OK
IC3:OK IC4:OK
If some portion of the read/write test fails, the display will show “NG”.
M:NG
3. Press STOP to exit the test mode.
3.12.7 RTC(real time clock) Test
This test mode is not applicable to field service of the OKIOFFICE 120 model.
Summary of Contents for OKIOFFICE 120
Page 7: ...vi ...
Page 17: ...1 10 1 7 Dimensions Dimension in mm ...
Page 23: ...1 16 1 11 ID Label Specification 1 12 Labels location ...
Page 24: ...2 1 Section2 Machine Composition 2 1 Interconnect Block Diagram ...
Page 25: ...2 2 ...
Page 87: ...3 46 Unique Switch F 7 and F 9 Factory use only ...