Lexmark 4079 colorjet printer plus Service Manual - Page 63

Mechanical, replacement

Page 63 highlights

Paper Feed Mechanical 005 (continued) Does the plate rise and fall correctly? Yes No 006 Replace or adjust the pickup roller spring plate (Asm. 20-10), located under the carriage shaft just lett of the carriage motor 007 Does the pickup roller feed the paper into the printer? Yes No 008 Clean the paper feed roller by running a piece of brown cleaning paper through the printer. (Cleaning paper is supplied with each batch of coated printer paper.) - or Replace the paper feed roller (Asm. 18-3). 009 Does only one sheet of paper enter the paper feed rollers? Yes No 010 Replace the sheetfeed separation assembly or related parts (Asm. 19-21). 011 Does the paper move through the paper feed and pinch rollers onto the platen? Yes No 012 - Remove and replace the following FRUs in sequence, checking printer operation after each replacement: (Step 012 continues) Diagnostic Information 2-43

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Paper
Feed
Mechanical
005
(continued)
Does
the
plate
rise
and
fall
correctly?
Yes
No
006
Replace
or
adjust
the
pickup
roller
spring
plate
(Asm.
20-10),
located
under
the
carriage
shaft
just
lett
of
the
carriage
motor
007
Does
the
pickup
roller
feed
the
paper
into
the
printer?
Yes
No
008
Clean
the
paper
feed
roller
by
running
a
piece
of
brown
cleaning
paper
through
the
printer.
(Cleaning
paper
is
supplied
with
each
batch
of
coated
printer
paper.)
-
or
-
Replace
the
paper
feed
rol
ler
(Asm.
18-3).
009
Does
only
one
sheet
of
paper
enter
the
paper
feed
rollers?
Yes
No
010
Replace
the
sheetfeed
separation
assembly
or
related
parts
(Asm.
19-21).
011
Does
the
paper
move
through
the
paper
feed
and
pinch
rollers
onto
the
platen?
Yes
No
012
Remove
and
replace
the
following
FRUs
in
sequence,
checking
printer
operation
after
each
replacement:
(Step
012
continues)
Diagnostic
Information
2-43