HP Z840 Safety & Comfort Guide User Guide
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- HP Z840 | Safety & Comfort Guide User Guide - Page 1
Safety and Comfort Guide - HP Z840 | Safety & Comfort Guide User Guide - Page 2
to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors - HP Z840 | Safety & Comfort Guide User Guide - Page 3
Introduction This guide describes proper workstation setup, posture, and health and work habits for computer users at work, at home, at school, and on the go. In addition, this guide contains electrical and mechanical safety information applicable to all HP products. Also available at www.hp.com/ - HP Z840 | Safety & Comfort Guide User Guide - Page 4
iv Introduction - HP Z840 | Safety & Comfort Guide User Guide - Page 5
2 Adjusting your chair ...3 Let the comfort of your feet, legs, back and shoulders be your guide 3 Move often ...5 3 Adjusting your work surface ...6 Let the comfort of your shoulders, arms and policy and general practice 20 Installation requirements ...21 General precautions for HP products 21 v - HP Z840 | Safety & Comfort Guide User Guide - Page 6
Damage requiring service 21 Servicing ...21 Mounting accessories ...22 Ventilation ...22 Water and moisture ...22 surfaces ...24 Object entry ...24 Precautions for portable computer products 24 Monitor support cover ...24 Rechargeable battery pack 24 Docking base ...24 Precautions for server and - HP Z840 | Safety & Comfort Guide User Guide - Page 7
Laser safety warnings ...27 Compliance with CDRH regulations 27 Compliance with international regulations 28 Laser product label ...28 Symbols on equipment ...28 10 More information ...30 Index ...32 vii - HP Z840 | Safety & Comfort Guide User Guide - Page 8
viii - HP Z840 | Safety & Comfort Guide User Guide - Page 9
guide Scan for awkwardness and adjust for comfort Whenever you use a computer, you make decisions that can affect your comfort, health, safety, and productivity. This is true whether you use a desktop system. If you don't have a sit-stand workstation, think about standing while talking on the phone - HP Z840 | Safety & Comfort Guide User Guide - Page 10
habits to break if parents and teachers help them to learn good computer habits from the start. Parents and teachers need to monitor and guide the children in their care. Start children early on a lifelong habit of listening to their bodies, sensitizing themselves to awkwardness, and adjusting for - HP Z840 | Safety & Comfort Guide User Guide - Page 11
reclined positions, you need to fully familiarize yourself with your chair adjustments. If you do not have a copy of the printed chair user guide, check the manufacturer's website. Surprisingly, many people have never learned to utilize the full range of their chair adjustments. Taking the time to - HP Z840 | Safety & Comfort Guide User Guide - Page 12
features that can be adjusted for comfort. If so, adjust the chair back support to match the natural curve of your spine. 4. You may find that supporting your forearms makes your shoulders more comfortable, but arm supports should not cause you to shrug your shoulders, put excessive pressure on your - HP Z840 | Safety & Comfort Guide User Guide - Page 13
Once you know how to use the chair adjustments, move between upright and reclined positions, scanning your body for comfort. You decide which postures and seated adjustments are most comfortable and productive. Your posture choice within your comfort zone will likely vary with your task. For example - HP Z840 | Safety & Comfort Guide User Guide - Page 14
3 Adjusting your work surface Let the comfort of your shoulders, arms and hands be your guide When you're moving between postures, you may need to adjust your work surface for the comfort of your shoulders, arms, and hands. Your shoulders - HP Z840 | Safety & Comfort Guide User Guide - Page 15
just in front of the keyboard front edge. If you use a keyboard support surface, make sure it is wide enough to accommodate the pointing device. for awkwardness or discomfort, making adjustments to your body and the workstation to increase your comfort and productivity. When typing, pointing and - HP Z840 | Safety & Comfort Guide User Guide - Page 16
the pointing device, do not hold on to it; let it go. You may find that supports for your hands allow you to be more relaxed and comfortable. A palm rest may be used to provide support during pauses, but keep your wrists free to move while typing or using a pointing device. 8 Chapter - HP Z840 | Safety & Comfort Guide User Guide - Page 17
monitor. Your head should rest comfortably over your shoulders and your back should be fully supported by the chair. RIGHT Keep your head balanced comfortably over your shoulders with your back fully supported by your chair. Follow these guidelines for adjusting the monitor: ● Place the monitor in - HP Z840 | Safety & Comfort Guide User Guide - Page 18
WRONG Do not crane your neck forward. TIP: On some computers, the zoom setting can be adjusted up and down by holding down the ctrl key and rolling the mouse scroll wheel or by using the zoom gesture on the touchpad. RIGHT Adjust your viewing distance until you can read the text clearly. ● To find - HP Z840 | Safety & Comfort Guide User Guide - Page 19
are viewing the most (the holder or the monitor) directly in front of you. Let the comfort of your head, neck, and torso be your guide. Scan your head, neck and torso for comfort 11 - HP Z840 | Safety & Comfort Guide User Guide - Page 20
Adjusting dual monitors There are several different placement options to consider when using dual monitors. You may want to position one monitor directly in front of you and the other to the side. If you find you are rotating your head and neck to view an application on a display placed to the side - HP Z840 | Safety & Comfort Guide User Guide - Page 21
5 Using touch technology Using a touch-enabled monitor and all-in-one product Touch technology is great when you want to interact directly with objects on the screen. When using touch, you need to be especially attentive to the comfort of your neck, shoulders, and arms. Remember, there is no one - HP Z840 | Safety & Comfort Guide User Guide - Page 22
RIGHT Bring your touchscreen closer than arm's length and adjust WRONG Touching with an extended arm can quickly tire the the tilt to keep your wrists neutrally aligned. shoulder and arm. For a given task, you may find yourself exclusively using touch as the method of input; in other - HP Z840 | Safety & Comfort Guide User Guide - Page 23
WRONG Do not hunch forward over your touchscreen, leaving your back unsupported by your chair. Using a touch-enabled tablet It is especially important to scan for awkward head and neck posture when using touch-enabled tablets. If you use this technology often and find you have discomfort in your - HP Z840 | Safety & Comfort Guide User Guide - Page 24
RIGHT For neck comfort, you may want to try a height-adjustable accessory for your tablet. 16 Chapter 5 Using touch technology - HP Z840 | Safety & Comfort Guide User Guide - Page 25
docking station or port replicator can be used to access all the desktop accessories with one easy connection. Mobile accessories, such as a travel the notebook. When working in an environment where proper seating or support is unavailable or when working for extended periods, change your body - HP Z840 | Safety & Comfort Guide User Guide - Page 26
moderation in children's computer use. Children use computers a lot; they use them at school and at home for study and for play. Monitor and guide the children in your care-start early, start now, and insist that they take breaks. Children's bodies are still growing and developing, and their habits - HP Z840 | Safety & Comfort Guide User Guide - Page 27
8 Monitoring your health habits and exercise The comfort and safety of working at the computer can be affected by your general state of health. Studies have shown that a variety of health conditions may increase the risk of discomfort, muscle and joint disorders, or injuries. If you have any of the - HP Z840 | Safety & Comfort Guide User Guide - Page 28
the safe use of the equipment that your service partner cannot address, call HP Customer Support in your area. Product safety policy and general practice HP products operate safely when used according to their marked electrical ratings and product usage instructions. They should always be used in - HP Z840 | Safety & Comfort Guide User Guide - Page 29
manuals, and literature provided with the product or contact the local sales representative. General precautions for HP products Retain the safety and operating instructions the operating instructions. Servicing Except as explained elsewhere in the HP documentation, do not service any HP product - HP Z840 | Safety & Comfort Guide User Guide - Page 30
the service partner or local power company. For a product that operates from battery power or other power sources, the operating instructions are dispose of it in fire. Replacement should be done by a service partner using the HP replacement part for the computer. Power cords If you have not - HP Z840 | Safety & Comfort Guide User Guide - Page 31
heat sources. Replacement parts When replacement parts are required, be sure the service partner uses replacement parts specified by HP. Safety check Upon completion of any service or repairs to the product, have the service partner perform any safety checks required by the repair procedure or by - HP Z840 | Safety & Comfort Guide User Guide - Page 32
Standard for Safety of Information Technology Equipment (IEC 60950). Monitor support cover Do not place a monitor with an unstable base or pack or short the metal contacts. In addition, do not attempt to open or service the battery pack. Docking base To avoid pinching your fingers, do not touch the - HP Z840 | Safety & Comfort Guide User Guide - Page 33
are qualified in servicing computer equipment and trained by yourself. Due to the height and weight of the rack, HP recommends a minimum of two people to accomplish this task. ● the rack too quickly as the moving weight may damage the supporting rails. ● Do not overload the AC supply branch circuit - HP Z840 | Safety & Comfort Guide User Guide - Page 34
proper electrical grounding of the mast and supporting structure, grounding of the lead-in electrode. Lightning protection To protect your HP product during a lightning storm or when practical. 1. Electric Service Equipment 2. Power Service Grounding Electrode System (NEC Art 250, - HP Z840 | Safety & Comfort Guide User Guide - Page 35
the risk of fire. Precautions for products with laser devices All HP systems equipped with a laser device comply with safety standards, other than those specified in the operators manual or in the laser device installation guide. Allow only service partners to repair the laser equipment. Compliance - HP Z840 | Safety & Comfort Guide User Guide - Page 36
equipment The following table contains safety icons that may appear on HP equipment. Refer to this table for an explanation of the icons instructions are not followed. This symbol indicates the presence of electric shock hazards. Enclosures marked with these symbols should only be opened by a service - HP Z840 | Safety & Comfort Guide User Guide - Page 37
the equipment, observe local occupational health and safety requirements and guidelines for manual material handling. This symbol indicates the presence of a sharp edge To avoid risk of bodily injury, follow all instructions for maintaining stability of the equipment during transport, installation and - HP Z840 | Safety & Comfort Guide User Guide - Page 38
10 More information If you want more information about arrangement of work space and equipment or safety standards, refer to the following organizations: American National Standards Institute (ANSI) 11 West 42nd St. New York, NY 10036 http://www.ansi.org Human Factors and Ergonomics Society (HFES) - HP Z840 | Safety & Comfort Guide User Guide - Page 39
Linnégatan 14 SE-114 94 Stockholm, Sweden http://www.tcodevelopment.com 31 - HP Z840 | Safety & Comfort Guide User Guide - Page 40
20 children 2, 18 D docking base 24 dual monitors 12 E electric shock 20 electrical safety 20 energy safety 20 F fingers 7 fire 20 footrest 3 forearm support 4 G ground clamp 27 H hands 6, 7 health monitoring 19 heat 20 L laser devices 27 laser safety 27 lightning 26 local area network (LAN) 27 - HP Z840 | Safety & Comfort Guide User Guide - Page 41
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Safety and Comfort Guide