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November 2003 © TOSHIBA TEC 4 - 1 e-STUDIO3511/4511 PREVENTIVE MAINTENANCE
4. PREVENTIVE MAINTENANCE (PM)
4.1 PM Support Mode
4.1.1 General description
The timing for the parts replacement usually depends on the number of output pages / develop counts
after they were replaced before. However, the life span of them changes depending on the general
use of users and the environment in which the equipment is placed. Therefore, it is necessary to
consider not only the number of output pages but also the drive counts when deciding the timing for
the parts replacement in order to utilize the parts and materials effectively.
In addition, the drum rotates 4 times at color modes to transfer the images of 4 colors on the transfer
belt, overlaying one after another. Therefore, the number of output pages is counted as “4” for 1 page
for printing at color mode.
This equipment has the PM support mode, which makes it possible to see the general use of each
part (the number of output pages, develop counts and drive counts) and replacement record and to do
a counter clearing operation more efficiently when replacing.
The replacement record can be printed out in the list printing mode (9S-103).
4.1.2 Operational flow and operational screen
(1) Operational flow
* The screen goes back to the main screen when the counter clear is performed or the [CANCEL] button is
pressed after moving from the main screen, while it goes back to the sub screen after moving from the sub
screen.
Fig. 4-101
PM support mode activated
[6]+[START]+[POWER]ON
Main screen
Main unit list displayed
Sub screen
Sub unit list displayed
Clear screen
Counter clear
confirmation displayed
Counter clear performed
[RETURN]
pressed
[CANCEL] pressed
[RETURN] pressed
[CANCEL]
pressed
[INITIALIZE]
pressed
Sub unit chosen
[RESET] pressed
Clear finished
Clear finished
Main unit chosen
[RESET]
Main unit chosen
[SUB UNIT] pressed
[2] [START]