Oki OF5800 Service Guide - Page 151

Service Manual for OF5800 Chapter 3 Adjustment Procedures Page: 132 This mode is used to test the DRAM memory, or document memory. Note: When this test is performed, an All RAM 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 F. 2. Enter numeric 1, 2, 3, 4, depending on the amount of DRAM in the unit. Please refer to the following table: 1 = Standard 1 meg 2 = If upgrade is installed in upper connector 3 = If upgrade is installed in middle connector 4 = If upgrade is installed in bottom connector The values FF, AA, 55, and 00 are written to, then read from, memory. The results are show in the display. If the read/write test is successful, the display will show "OK" after each value. If some portion of the read/write test fails, the display will show "NG" after the failed value. Press STOP to exit the test mode. Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)