Kyocera TASKalfa 7002i Service Manual page 917

(4-13) Fusing failure
Step Check description
1 Checking the paper
2 Checking the paper
3 Executing U161
4 Checking the fuser unit
(4-14) Paper skew at the trailing edge
Step Check description
1 Cleaning the transfer belt
unit
2 Removing foreign material
3 Relocating the paper width
guides / paper size guides
/ MP paper width guides
4 Checking the conveying
section
5 Opening and reclosing the
right cover
6 Reinstalling the fuser unit
Assumed cause
Unspecified papers are
used.
The media type is not
properly set.
The lower fuser tempera-
ture is set.
The nipped pressure
(width) to the solid image is
low and fuser pressure set-
ting (spring) is too weak.
Assumed cause
The parts neighboring to
the transfer belt are dirty
with paper dust, etc.
Paper is caught by foreign
material such as a piece of
paper.
The paper width guides,
paper size guide A/B or
MP paper width guides are
not aligned to the paper
size, and the paper is
skewed.
The left and right registra-
tion rollers or the middle
pulleys are not properly
attached, or they are dirty.
The right cover is not firmly
closed.
The fuser unit is not prop-
erly installed.
7-57
Measures
Replace with the proper
paper.
Set the proper media type via
the System Menu.
Change the fuser tempera-
ture to the default value.
Replace the fuser unit.
Measures
Clean the transfer belt, dis-
charging sheet and paper
path.
Replace the toner sucking
fan motor if it does not oper-
ate properly when executing
U037 [Toner].
Relocate the paper width
guides, paper size guide A/B
or the MP paper width guides
to fit them with the paper
size.
Check if the left and right reg-
istration rollers and the mid-
dle pulleys are properly
attached. If necessary, reat-
tach them. Also, if they are
dirty with toner or paper dust,
clean them.
Open the right cover (convey-
ing unit) once, and close it
firmly.
Insert the fuser unit straight
into the main unit, and lock
both sides of the fuser unit
firmly.
2WA/2NJ/2RK
Reference
Executing
U161
Detaching
and Reat-
taching the
fuser unit
Reference
Detaching
and Reat-
taching the
fuser unit