Nantian Electronics PR9 ES, Service Manual

Page: 89 / 112

PR9 Service Manual
Page 84 of 102
4.6 PREVENTIVE MAINTENANCE
4.6.1 CLEANING
For a correct printer operation, it is suggested that the internal components of the
machine be cleaned periodically and whenever the machine is serviced.
4.6.2 CLEANING THE CASE
Power off the machine, unplug it from the electrical outlet and then clean its case
using a damp cloth; avoid using corrosive substances such as solvents, alcohol
solutions, petrol or abrasive components.
4.6.3 CLEANING THE PAPER PATHS
Clean all the document paths including the paper feed rollers of the front paper
feeder, making sure to remove any paper or ribbon residues that are deposited on
the parts. Also remove any foreign matter.
4.7 LUBRICATION
Although machine lubrication is not scheduled throughout its entire life span, during
each service call you are expected to check the lubrication of the different parts by
referring to the lubrication points table indicated below.
DESCRIPTION GREASE OIL
Printhead carriage slide shafts
X
Carriage felt
X
Ribbon feed gear X
reed support pin X
Hole of the contact bushing between roller shaft and
strap shaft X
Center pressure device in shaft contact area
X
Bushings in the shaft contact area X
Services Motor
X
Services Motor gear X
Pulley toothing X
Ribbon feed rotation pin hole with support pin X
Belt tightener pin with return pulley X
Rubber in the damper assembly hole X
Print crosspiece in the following areas X
Pin contact left bracket
X
Guide hole center pin
X
Inside the crosspiece adjustment screw holes X