MUTOH Rockhopper 38, Maintenance Manual

Page: 231 / 258

Rockhopper 38 – Maintenance Manual
231
AP-74038, Rev. 1.1, 25/01/05
No
Message N° Checkpoint Action
1.1 • Are environmental
conditions within the range
recommended for assured
operation as checked in
the primary consultation?
→ After checking compliance with
the range recommended for
assured operation, please explain
these points in detail.
1.2 • Has distance been
compensated using the
existing media as checked
in the primary
consultation?
→ Carry out distance
compensation.
→ Even if the distance has been
compensated using the existing
media, do it for verification.
1.3 • Is the X drive pulley set
screw loose?
→ Re-tighten the screw.
1.4 • Is the X speed reduction
pulley set screw loose?
→ Tighten it securely.
1.5 • Is the X speed reduction
belt tension adjusted to the
prescribed value (4.2 kg ±
0.2 kg)
→ Readjust it.
1.6 • 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 • Inaccurate line distance in the
direction of media feed
(Subsidiary scanning distance)
1.7 • 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.