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 together with the toner bottle.

•Clean the paper path.

•Clean the corona wire.

•Install the new print unit, then the new toner bottle.

Notice:

Do not return the toner remaining in the old print unit to the toner bottle to reuse the toner for the new print unit. It may cause a printing trouble because such toner contains harmful foreign matters like paper particles. Be sure to replace the old print unit with the toner bottle mounted.

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.

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User'sManual