Service manual

6. MAINTENANCE
Service Manual BSM-4100 6.1
Required Tools
• Long-bladed Phillips screwdriver (insulated)
• Long-bladed flat screwdriver (insulated)
• Anti-static bench mat connected to appropriate ground
• Anti-static wrist strap connected to appropriate ground
• 6 mm standard hex (Allen) wrench or hexagon key
• 3 mm hex socket driver
• Tweezers
• Nippers
• Cable ties
We recommend the periodic replacement of the following components according
to the expected life span.
To Be Replaced Periodically
NK Code No. Description Expected Life Span
585876
Backlight assembly for
LCD unit of the
monitors with revision
number before CA
Approx. 25,000 hours or 2 years
and 10 months or more of
continuous operation
709699
Backlight assembly for
LCD unit of the
monitors with revision
number CA or later
Approx. 50,000 hours or 5 years
and 9 months or more of continuous
operation
481809
Lithium battery for clock
operation backup
Approx. 6 years or more
6114-053114C Platen roller Approx. 6 years or more
107002 Retainer ring
Must be replaced with a new one
when the platen roller is replaced.
445074 Thermal array head
Approx. 250 stacks or more of the
recording paper
445109C Paper drive motor
Approx. 6000 stacks or more of the
recording paper