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5-8 User’s Manual
Periodic Routine Maintenance
For the print unit life, this printer indicates the near end of life only.
The printer message display begins indicating
REPLACE PARTS
when the print unit can print 3000 to 5000 more pages left. Prepare
a new print unit if you notice this indication.
Even if the print unit reaches its near-end-of-life, use the print unit
until its toner runs out (the message display indicates
TONER
EMPTY
) for economy. After replacing the print unit, be sure to reset
the print unit counter by using the control panel. For control panel
operations, see the end of this section.
Replacing the print unit involves replacing the toner bottle. It is
better to perform the following set of procedures when replacing the
print unit:
• Remove the old print unit. (You cannot remove it from the printer
after detaching the toner bottle from it.)
• Clean the paper path.
• Clean the corona wire.
• Install the new print unit, then the new toner bottle.
The following sections describe these procedures in the order listed.
Removing the Print Unit
Perform this procedure in the following cases:
• To replace the print unit
• To store the print unit in a clean, dark place when working inside
the printer for more than three minutes
Caution:
For safety, turn off the printer and disconnect the power cord before
beginning.
!
07 Chapter 5 07.08.1997, 11:41 Uhr8