Oki ES9160, Maintenance Manual

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ES9160 MFP / ES9170 MFP © 2012 OKI DATA CORPORATION All rights reserved
PREVENTIVE MAINTENANCE (PM)
7 - 12
7.5 EPU Replacement Mode (7S)
7.5.1 General description
As this equipment complies with the ERU (Easy Replacement Unit) rule, the EPUs (drum/cleaner unit,
developer unit) of this equipment can be removed or reinstalled easily.
When each EPU is replaced with a new unit at PM, the IC chip in the EPU board installed at the bottom
of the developer unit detects whether a new or an old unit is installed. When the IC chip memory judges
that the installed unit is a new one, the series of operations required at the replacement (counter reset
for supply items in the EPU, auto-toner sensor initial adjustment and automatic gamma adjustment) is
smoothly performed.
Notes:
If only the supply items in the EPU at PM are to be replaced, perform the life counter reset for
each supply item; if developer material is to be replaced, perform the auto-toner sensor
adjustment and the automatic gamma adjustment in the PM support mode as described in
Chapter 5.
7.5.2 Operation flow
The following is the operation flow.
Advance preparation
A4/LT size papers need to be loaded in the cassette for automatic gamma adjustment. Before
performing the EPU replacement mode, load the A4/LT size papers into the cassette, then set the
cassette paper size.