Sharp MX-2640N / MX-2640NR / MX-2640FN / MX-3140N / MX-3140NR / MX-3140FN / MX-3640N / MX-3640NR / MX-3640FN (serv.man37) Service Manual ▷ View online
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 3
3) While pressing the lever, pull out the developing unit
to
remove.
4) Open the cover to remove.
5) Loading developer to the developing units.
Be sure to shake the bag of developer thoroughly before pour-
ing into the developing unit.
When pouring the developer into the unit, use care t o not get
developer in to the drive section.
6) Attach the cover.
7) Shake the developing unit se veral times horizont ally and
strongly.
8) Open the toner shutter of the developing unit and ch eck to
confirm that there is proper amount of developer. If not, per -
form procedure 7) again.
• Check that there is proper amount of developer.
(The stirring screw can be partly seen.)
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 4
• There is no developer in the shutter position.
• There is too much developer.
(The stirring screw cannot be seen.)
Be sure to keep the developing unit level while supplying the
developer.
9) Insert the developing unit so as not to give a strong shock to
the main unit gently.
Slide the developing unit horizontally into the machine, in the
direction of the arr ow, until developing unit locks into. place.
Do not push the unit diagonally, as contact with the drum may
occur causing damage.
When removing or installing the developing unit, put your hand
from below the unit and slide it in parallel along the guide.
At that time, be careful not to touch the roller surface.
When installing the machine, there is no need to r emove or
install the OPC drum unit. If it must be removed or installed for
any reason, follow the procedures below. When r emoving or
installing the OPC drum unit, put your hand from below the unit
and slide it in parallel along the guide on the right side.
At that time, be careful not to touch the OPC drum surface.
10) Close the drum positioning cover, and lock it.
11) Re-install the waste toner box and lock into place.
B. Set the control level for the reference toner
density
Setting of the reference toner density control level must be per-
formed with the toner cartridge removed.
If setting is performed with the toner cartridge installed, the EE-EL
If setting is performed with the toner cartridge installed, the EE-EL
error or an overtoner trouble may occur.
1) With the front cabinet open , connect the power plug to the
power outlet.
2) Turn ON the main power switch of the machine and the power
switch on the operation panel.
2
1
MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 5
3) Enter the SIM25-2 mode.
4) After entering the simulation, close the front cabinet.
5) Select K, C, M, Y and then press the [EXECUTE] button. The
5) Select K, C, M, Y and then press the [EXECUTE] button. The
system then performs the simulation, samples the toner den-
sity control sensor value, and sets (stores in memory ) the
average sensor detection level as the contro l level for the ref-
erence toner density. (Operating times: approx. 1.5 minutes)
Be sure to select all of the four colors: K, C, M, Y.
6) After the machine completes cycling, exit the simulation mode.
7) Confirm that “Install the toner cartridge” is displayed , and
7) Confirm that “Install the toner cartridge” is displayed , and
install the toner cartridge by the following procedures.
8) Shake the toner cartridge horizontally several times.
9) Open the front cabinet, and insert each toner cartridge.
Be sure to install the color cartridges to their proper positions.
Avoid installation to a different color position.
Do not forcibly insert the toner cartridge.
Push it in until the cartridge is securely locked in place.
Push it in until the cartridge is securely locked in place.
Developing units removed, be sure to re move the toner car -
tridges as well to prevent toner clogging.
Color toner cartridge positions
10) Close the front cabinet.
11) Confirm that " Toner replenishment in prog ress" is displayed,
11) Confirm that " Toner replenishment in prog ress" is displayed,
and wait until the display disappears. (It takes 30 sec - 6 min.)
This procedure is for checking the toner supply operation from
the toner cartridge to the D V unit. T he operation time d iffers
depending on the toner quantity in the toner cartridge, uneven
distribution of toner, and the inside state of the toner cartridge.
Do not perform operations which interrupt the above operation,
such as opening the front cover, entering the SIM mode, and
turning OFF/ON the po wer. If this precaution is ignored, an
error of F2-40 - 43 or F2-64 - 67 may occur or an overtoner
may be caused.
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MX-3640N MX-2640N/3140N/3640N (MAIN UNIT) 2 – 6
C. Cleaning
(1) Cleaning of LSU's dust-proof glass and PTC wire
Dust from the transfer belt or sh utter or some other adjacent p art
may fall onto the LSU during tr ansport or installation. Be sure to
clean the dust-proof glass and PTC wire before checking the image
quality.
1) Open the front cabinet. Slide the lock to release, and remove
the waste toner box.
2) Detach the LSU cleaning bar from the front cover.
3) Turn the felt side of the cleaning bar downward and insert it.
Slide it back and forth a few times to clean the LSU dust-proof
glass.
4) Move the PTC cleaning rod back and forth a few times to clean
the PTC wire.
After completion of cleaning, insert the cleaning rod completely
to the bottom.
5) Return the LSU cleaning rod to the front cabinet so that the felt
faces upward. Fit the boss, and fix it with three pawls.
6) Close the front cabinet.
D. Paper feed tray setup
(1) System setting
1) Press the [SYSTEM SETTINGS] key.
2) Touch the [Paper Tray Settings] key.
3) Touch the [Paper Tray Settings] key to configure the settings.
2) Touch the [Paper Tray Settings] key.
3) Touch the [Paper Tray Settings] key to configure the settings.
These settings specify the paper type, paper size, and func-
tions allowed for each paper tray. When the [Tray Settings] key
is touched, a list appears showing the trays and the current
settings.
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