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Service Manual for OF5800
Chapter 3 Adjustment Procedures
Jumper JP1 on the main control PCB is used for battery back-up of the DRAM. Any documents stored in
DRAM. Removing JP1 will initialize the DRAM. If the power is turned off, the battery will provide up to 1
week of backup-for 1 meg of memory when fully charged.
Jumper JP2 on the main control PCB is used for battery back-up of the SRAM. All user programmed data
and internal Parameter settings are held in SRAM. Removing JP2 will initialize the SRAM. If the power is
turned off, the battery will provide up to five years of back-up when fully charged.
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)