MUTOH Rockhopper 38, Maintenance Manual

Page: 223 / 258

Rockhopper 38 – Maintenance Manual
223
AP-74038, Rev. 1.1, 25/01/05
No Message N° Checkpoint Action
1.11 • 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.
1.12 • 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.
1.13 • Is the pump motor
turning during the
cleaning action?
→ Check the pump motor
cable connector J102
(PUMP MOT) on the main
board and try again.
→ Replace the pump motor.
→ If the pump motor does
not turn after performing the
above tasks, replace the
main board assy.
1.14 • Was there any
mismatching of gears
during the cleaning
operation?
→ Replace the maintenance
station GA assy.
1.15 • Is the cap assy spring
fallen out or broken?
→ If the part has fallen out,
refit it.
→ Replace the cap assy or
the maintenance station GA
assy.
1.16 • Are the tubes crushed
inside the pump assy?
→ Replace the pump assy
and check the ink flow. If it
is good, carry out initial
filling.
CAUTION: Wait at least 30 minutes after initial filling
before printing. Printing quality can not be assured
unless ink filling has been stabilized.
1.17 • Does the head that is
fitted have a rank that
is different from the
recorded rank?
→ Re-enter the rank
correctly.
1
2
3
4
• Printing becomes shaded.
• The image contains blurs.
• Transverse lines appear to be split.
• Black and white lines appear in the
printed image (Not including gaps in
the step patterns in locations 1G to
7G of the test pattern)
If dots are missing, go to page 208
1.18 • The print head assy
may be damaged
Damaged head
replacement
→ Replace the black print
head assy.
→ Replace the color print
head assy.
→ Continued on next page