MUTOH Rockhopper II 2H, Maintenance Manual, Page: 295 / 319

Rockhopper II series printers – Maintenance Manual
296 AP-74065, Rev. 1.2, 27/09/04
9.3.2. Problems relating to paper feed
No. Phenomenon Check point Action Refer to
1 The paper comes off at paper
set initialization or during the
printing operation. (1) Check if the
P_REAR sensor
assembly and
P_EDGE sensor
assembly are
operating correctly
via “Test: Sensor” of
the self-diagnostic
function • Check if the
connections of the
following
connectors.
• Mainboard
assembly :
J128/J129, J137-
J152
• CR board : J201-
J261
• Adjust the
sensitivity of the
P_EDGE sensor
• Replace the
P_REAR sensor
assembly and
P_EDGE sensor
assembly
→
Replacing the
Mainboard
assembly,
HDD_Extension
board assembly,
HEAD_DRV board
assembly and
cooling fan
assembly.
→
Replacing the CR
board assembly
→
media sensor
sensitivity
adjustment
→
Replacing the
P_REAR_R sensor
and P_REAR_L
sensor assembly
→
Replacing the
P_EDGE sensor
assembly.
2 The paper is fed askew or
meanderingly at paper set
initialization or during the
printing operation. (2) Check the platen
for contamination by
paper dust and ink. • If the platen is
contaminated by ink
or paper dust, wipe
off with a damped
soft cloth. →
User’s Guide
3 The paper is wrinkled at paper
set initialization or during the
printing operation. (3) Check the
rotation of pressure
roller with the
pressure arm at the
raised position. • If the surrounding
area of the pressure
roller is
contaminated by
paper dust and
waste paper, wipe
off with a damped
soft cloth. →
User’s Guide
4 The paper jams up at paper set
initialization or during the
printing operation. (4) Check paper
guide F for
significant
deformation, flaws,
foreign material, etc. • If foreign materials
such as wastepaper
are found on the
paper guide F,
remove them.
• Replace the paper
guide F.
→
Removing media
guide F.
5 After the paper set initialization,
the paper size is detected
incorrectly. (5) Is the flange
properly installed? • Securely insert
flanges into the
paper tube for the
roll paper. →
User’s Guide
(6) Check the rollers
of the paper
receiver for flaws
and wear that may
hinder the rotation
of the scroller. • Replace the rollers
of the scroller.
→
Replacing the
scroller R assembly.
→
Replacing the
scroller L assembly.
(7) Check the
scrollers for bends.
• Replace the
scrollers.
→
User’s Guide