MUTOH Rockhopper 38, Maintenance Manual, Page: 215 / 258

Rockhopper 38 – Maintenance Manual
215
AP-74038, Rev. 1.1, 25/01/05
9.3.2 Trouble with Media Feed.
No Message N° Checkpoint Action
1.1 • Do paper sensors XF/XR
detect normally with the self-
diagnostic
“Examination/Sensors”?
→ Check the connections of paper
sensor F and paper sensor R
connectors.
Paper sensor F is the main board
connector J103 (XF) and paper sensor
R is J107 (XR).
→ Replace paper sensors F and R.
1.2 • Do the fans work normally with
the self-diagnostic
“Examination/Sensors”?
→ Check the connectors between fan
assy, fan cable assy and main board
assy.
Fan cable A assy is J116 (FAN1) on
the main board
Fan cable B assy is J117 (FAN2) on
the main board
Fan cable C assy is J118 (FAN3) on
the main board
→ Replace fan assy
→ Replace Fan cable A assy, Fan
cable B assy, Fan cable C assy.
1.3 • Is shielding fitted in the
specified places? Shielding GA-
A, GA-B, GA-C
→ Refit in the specified places.
1.4 • When the pressure lever is
raised and lowered, does the
pressure unit move up and down
smoothly at the same time?
→ Apply grease (G-501) if it does not
move smoothly.
1.5 • Are all the pressure rollers (15)
pressurizing the media?
• With the pressure lever raised,
do any pressure rollers seem
reluctant to turn?
• With the pressure lever
lowered, are any of the pressure
rollers idling.
• With the pressure lever
lowered, is the plate pressing
strongly on the media?
→ If there is paper dust or scraps near
the pressure rollers, wipe with a soft
damp cloth.
→ If necessary, replace pressure assy,
pressure rollers and plate.
→ If the gap between platen and plate
is less than 0.8 mm, adjust platen
height.
1
2
3
4
5
• The media
comes off when it
is initialized or
during printing
• The media is
skewed or
meanders when it
is initialized or
during printing
• The media
becomes
wrinkled when it
is initialized or
during printing
• The media jams
when it is
initialized or
during printing
• The media tears
when it is
initialized or
during printing
1.6 • Is the rough surface of the grid
roller worn in some places?
• Is the grid roller heavy to turn?
Or does it not turn smoothly?
→ If there is paper dust or scraps
sticking to the grid roller, clean it with a
nylon brush.
→ If necessary, replace the grid roller
assy and coupling assy.