ISHIDA WM-NANO Service Manual

Appendix 1 Periodic Replacement Parts
Appendix 1-1
Appendix 1 Periodic Replacement Parts
■ Parts needing periodic replacement
1： Periodic replacement parts (Replacement cycle differs depending on usage status.)
No. Parts Name
(Common Name)
Remarks Expected Damage Replacement Cycle
(approximate)
1 Printing roller Printer
Deterioration of gripping
force due to wear
2 years and 6 months
２
Thermal head (single
color)
Printer
Missing letter shape due
to waste
MTBF about 60 km
Real life of parts differs depending on usage conditions.
STAR thermal paper (same with varnished labels) and YUPO paper (synthetic paper), etc. have shorter run
due to wear of the head surface.
The life of thermal heads is limited by two factors: wear of the thermal head surface and waste of heat
elements.
The life of heat elements corresponds to the number of applied pulses of one hundred million.
As for a thermal head with a resolution of 8 dots/mm, the life reaches its limit first due to wear of the thermal
head surface when used for format design of common weighing labels.
With a format design that has all black color portions or vertical ruled lines, the heat elements may
sometimes reach their life limit first.
NOTE:
MTBF (Mean Time between Failures) is an average interval of failures given as a rough
standard.
The numerical values of MTBF and life do not guarantee the corresponding parts.
2： Parts expected to be needed replacement in 5 years (parts needed in an overhaul)
No. Parts Name
(Common Name)
Remarks Expected Damage
1
Timing belt in the drive
system
Left and right squeezing
feeder drive
Snag, break, broken teeth
2
Bearing in the linear
system
Postsqueezing
Eject pusher
Lift drive
Left and right squeezing
Rust, looseness, abnormal
noise
3
Bearing in the radial
system
DU bushing
Each power transmission
unit
Rust, looseness, abnormal
noise
4
Turn-in roller, receiving
bushing
Postsqueezing Luster, wear, looseness
5 Cutter blade Film cutter Rust, dullness, nicked edge
6 Solenoid
Feeder
Cutter
Film arm
Wear, powder generation,
delay in operation
7
Roll brake
(Torque keeper)
Roll holding Film overrun

ISHIDA WM-NANO Specifications

General

Brand	ISHIDA
Model	WM-NANO
Category	Packaging equipment
Language	English