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HP Pavilion xt500 HP Pavilion PC - Safety and Comfort Guide - Page 45

General Precautions for HP Products, Damage Requiring Service, Servicing, Mounting Accessories

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Safety & Comfort Guide Electrical and Mechanical Safety Information General Precautions for HP Products Retain the safety and operating instructions provided with the product for future reference. Follow all operating and usage instructions. Observe all warnings on the product and in the operating instructions. To reduce the risk of fire, bodily injury, and damage to the equipment, observe the following precautions. Damage Requiring Service Unplug the product from the electrical outlet and take the product to an HP authorized service provider under the following conditions: ❒ The power cord, extension cord, or plug is damaged. ❒ Liquid has been spilled or an object has fallen into the product. ❒ The product has been exposed to water. ❒ The product has been dropped or damaged in any way. ❒ There are noticeable signs of overheating. ❒ The product does not operate normally when you follow the operating instructions. Servicing Except as explained elsewhere in the HP documentation, do not service any HP product yourself. Opening or removing covers that are marked with warning symbols or labels may expose you to electric shock. Service needed on components inside these compartments should be done by an HP authorized service provider. Mounting Accessories Do not use the product on an unstable table, cart, stand, tripod, or bracket. The product may fall, causing serious bodily injury and serious damage to the product. Use only with a table, cart, stand, tripod, or bracket recommended by HP, or sold with the product. Ventilation Slots and openings in the product are provided for ventilation and should never be blocked or covered, since these ensure reliable operation of the product and protect it from overheating. The openings should never be blocked by placing the product on a bed, sofa, carpet, or 7-3

Section	Page
© 2002 Hewlett-Packard Company	2
Warning	3
Contents	5
Promoting a Safe and Comfortable Work Environment	7
Important Choices	8
Take Action for Safety and Comfort	8
Students and Teachers	8
Finding Your Comfort Zone	11
A Range of Positions	12
Move	12
Different Tasks, Different Postures	12
Organizing Your Adjustments	12
Feet, Knees, and Legs	13
Providing Enough Leg Room	13
Back	14
Getting comfortable	14
Shoulders and Elbows	15
Forearms, Wrists, and Hands	16
Do Not Anchor Your Wrists	16
Eyes	18
Resting Your Eyes	18
Cleaning Your Monitor and Glasses	18
Having Your Eyes Examined	18
Arranging Your Work Area	19
Monitor	20
Positioning the Monitor	20
Adjusting the Monitor Height	20
Tilting the Monitor	20
Adjusting Monitor Height for Bifocal, Trifocal, and Progressive Addition Lens Users	21
Eliminating Glare and Reflections on Your Monitor	21
Keyboard and Pointing Device	22
Positioning the Keyboard	22
Adjusting the Keyboard Height and Slope	22
Aligning the Mouse and Keyboard	22
Using a Keyboard Tray Comfortably	23
Arm Supports and Palm Rest	24
Supporting Your Forearms	24
Using a Palm Rest	25
Papers and Books	26
Minimizing Your Reach	26
Using a Document Holder	26
Phone	27
Working in Comfort	29
Using a Notebook Computer	30
Seeking Comfort	30
Being Inventive	30
Transporting the Computer	30
Typing Style	31
Reaching for Keys and Key Combinations	31
Pointing Style	32
Adjusting Software Controls	32
Clean Frequently	32
Using a Keyboard on a Sofa or Bed	33
Be Aware of Your Forearms, Wrists, and Hands	33
Taking Breaks and Varying Your Tasks	34
Take Breaks	34
Vary Your Tasks	34
Reduce Sources of Stress	34
Breathe deeply	34
Monitoring Your Health Habits and Exercise	35
Monitoring Personal Tolerance Levels and Limits	35
Cultivating Health and Fitness	35
Organizing Your Adjustments	37
From the Ground Up	37
From the Top Down	37
Your Safety & Comfort Checklist	39
Seated Position	39
Shoulders, Arms, Wrists, and Hands	39
Eyes	40
Typing Style	40
Keyboard and Pointing Device	41
Monitor	41
Notebook Computer	42
General Prevention	42
Electrical and Mechanical Safety Information	43
Introduction	43
Product Safety Policy and General Practice	43
Safety Standards	44
Installation Requirements	44
General Precautions for HP Products	45
Damage Requiring Service	45
Servicing	45
Mounting Accessories	45
Ventilation	45
Water and Moisture	46
Grounded (Earthed) Products	46
Power Sources	46
Accessibility	46
Voltage Select Switch	46
Internal Battery	46
Power Cords	47
Protective Attachment Plug	47
Extension Cord	47
Overloading	47
Cleaning	47
Heat	48
Circulation and Cooling	48
Replacement Parts	48
Safety Check	48
Options and Upgrades	48
Hot Surfaces	48
Object Entry	48
Precautions for Portable Computer Products	48
Monitor Support Cover	49
Rechargeable Battery Pack	49
Docking Base	49
Precautions for Server and Network Products	49
Safety Interlocks and Enclosures	49
Accessories and Options	49
Products with Casters	50
Floor Standing Products	50
Rack-Mountable Products	50
Precautions for Products with Hot-Pluggable Power Supplies	51
Precautions for Products with External Television Antenna Connectors	51
Compatibility	51
External Television Antenna Grounding	51
Lightning Protection	51
Power Lines	52
Antenna Grounding	52
Precautions for Products with Modems, Telecommunications, or Local Area Network Options	53
Precautions for Products with Laser Devices	53
Laser Safety Warnings	53
Compliance with CDRH Regulations	54
Compliance with International Regulations	54
Laser Product Label	54
Symbols on Equipment	55
Appendix	57