2L6/2N6/2N5/2N4
1-4-138
6990 Fuser power supply incom-
patibility
between the engine backup
and the fuser IH PWB.
Differences in
settings after
initialization
When this has happened after initialization
using U021, make settings identical with the
voltages on the IH PWB using U169 (see
page 1-3-31,1-3-232).
Fuser IH PWB Replace with a fuser IH PWB specifically
designed with the standard voltage (see
page 1-5-96).
Engine PWB 1. Check the engine software and upgrade
to the latest, if necessary.
2. Replace the engine PWB (see page 1-5-
80).
7001 Toner motor K error
A state that the pulse is not
detected at the pulse sensor
for 200 ms has occurred more
than 15 times in a row during
the toner motor K is driven.
A state that the TMOT_LOCK
signal becomes H (locked) is
detected after 200 ms when
the toner motor K is driven
has occurred 15 sets in total.
Toner container K
1. Check that the spiral screw of the toner
container can be rotated by the hand.
2. Check for broken gears and replace if
any.
Toner motor K
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 K and Engine PWB (YC27)
4. If the wiring is disconnected, shorted or
grounded, replace the wiring.
5. Replace the Toner motor K.
Screw sensor K
1. Check that the sensor is correctly
positioned.
2. Confirm that the wiring connector is
firmly connected and, if necessary,
connect the connector all the way in.
Screw sensor K and Engine PWB
(YC27)
3. Replace the screw sensor K.
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
To Next Page
Loading...
