2L6/2N6/2N5/2N4
1-4-144
7103
Toner sensor M error
Sensor output value of 60 or
less or 944 or more continued
for 3 s.
Failure of locking
the developer
waste slot at setup.
If an abnormal noise is heard, check that the
developer ejection outlet is released and, if
not, release the outlet (see page 1-2-15).
Toner sensor M
1. Check the toner sensor output by U155
(see page 1-3-107).
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner sensor M and Front PWB (YC11)
Front PWB (YC2) and Engine PWB
(YC10)
3. If the wiring is disconnected, shorted or
grounded, replace the wiring.
4. Check that the gears of the developer
unit M are not damaged and the spiral
can rotate.
5. Replace the Developer unit M (see page
1-5-57).
Toner motor M
1. Draw out the toner container and
execute U135 to check the toner motor
operation (see page 1-3-97).
2. Check the drive gear can rotate or they
are not unusually loaded and, if
necessary, replace.
3. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Toner motor M and ?Engine PWB
(YC27)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the Toner motor M.
Engine PWB
1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
Code
Contents
Related parts
Check procedures/
corrective measures
Summary of Contents for TASKalfa 3051ci
Page 5: ...2L6 2N6 2N5 2N4 1 4 4 Machine Option2 Figure 1 4 4 Paper jam location Matchine Option2 ...
Page 201: ...2L6 2N6 2N5 2N4 5 1 4 200 ...
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Page 257: ...2L6 2N6 2N5 2N4 5 1 4 256 16 Grainy image See page1 4 272 ...