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Printers and photocopiers have always been of concern to health in addition to the fine particulate outlined in this thread. Ozone and other off gassing have contributed to sick building syndrome and respiratory problems.

University of Edinburgh Health & Safety Department or CCOHS: Headlines: Indoor Air Quality: A Legitimate OSH Concern

and this
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l HEALTH AND SAFETY INFORMATION SHEET
Page 1 of 3
l
Photocopiers
Last updated in May 2002
Photocopiers, laser printers, and other electronic duplicating devices are a regular feature of the modern
office environment.
WHAT ARE THE POTENTIAL HAZARDS?
Modern dry toners are rarely a skin or eye hazard. The main ingredient, carbon black is mildly toxic,
but modern machines with replaceable toner cartridges minimise exposure. Inhaled toner may cause
respiratory irritation, but current thinking is that it is not carcinogenic (cancer causing) at exposure
levels normally experienced in the office use of photocopiers. Impurities in some toners may however,
be carcinogenic.
Older machines pose a greater exposure risk, because adding toner may involve transferring loose toner
rather than replacing a cartridge.
Modern liquid toners also rarely irritate the skin, but exposure to solvents within them can dry and
crack the skin, and mildly irritate the eyes. The same hazards apply to the various solvents used for
cleaning duplicating machines. They also pose a fire risk if not stored adequately. Frequent contact
with toner or other solvents may cause dermatitis or asthma.
Most modern equipment does not present a bright light hazard beyond short-term discomfort to the
eyes, but it is prudent to keep the photocopier lid down. Some have interlocking devices, which
prevent photocopying taking place unless the lid is down. Ultra-violet radiation may also be released
through the glass plate, but at very low levels.
Electro-magnetic fields (EMF’s) are produced by electronic equipment. Research into EMF’s is not
conclusive either way, but standing back at least 1 metre from the photocopier when doing long runs
(e.g. 15 minutes) is an easy precaution to adopt.
All laser printers are classified as class 1 laser products meaning that under normal conditions the laser
radiation (beam) is inaccessible and therefore not a hazard unless the shielding or enclosure around the
laser is tampered with, or removed. Only properly trained technicians following the manufacturers safe
working procedures should carry out maintenance.
Older or poorly maintained machines in poorly ventilated areas may emit detectable levels of various
gases including ozone. Ozone has a pleasant clove-like odour. At harmful concentrations that might
produce eye and respiratory tract irritation, its odour becomes strong and poignant. Severe exposure
can result in lung damage. Office environments do not generally produce significant exposure levels
although the occupational exposure limit can be breached if ventilation is inadequate. Odour problems
with modern copiers and fax machines usually indicate inadequate ventilation.
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l HEALTH AND SAFETY INFORMATION SHEET
Page 2 of 3
Excessive dry heat can build up if too many machines are placed in a small area, or where their use is
frequent and ventilation insufficient. This can cause discomfort to the eyes, and the workplace can
become too dry and hot.
Excessive noise may also be experienced in such circumstances, or where the machines are old or
poorly maintained. Printers in frequent use and close to a workstation can impair concentration.
Clearing paper jams in printers and other duplicating machinery will expose users to hot or moving
parts, sharp edges, pinch points, or exposed electrical parts. Modern machines should have such risks
designed out and should turn off automatically upon opening of the machine. However, a machine
must always be disconnected from the power supply before opening.
The greatest risk from paper is in its manual handling.
WHAT DOES THE LAW SAY?
The Control of Substances Hazardous to Health
Employers need to carry out assessments under the Control of Substances Hazardous to Health
(COSHH) on all chemicals used in the workplace. If a hazard is identified, the process must be
avoided, where this not reasonably practical a less hazardous substance must be used. If this is not
reasonably practicable, control methods such as local exhaust ventilation, and as a last resort personal
protective equipment must be used. Employers must meet the exposure limits set for any substance
used in the workplace.
The Management of Health and Safety at Work Regulations
Employers must assess all potential risks to employees and take steps to avoid them. Where avoidance
is not reasonably practical, they must reduce and control them as far as possible. Employees must be
provided with information on the risks identified, and on the measures taken, or to be taken to avoid
these.
The Provision and Use of Work Equipment Regulations
These regulations require employers to ensure that the equipment workers use at work is suitable for
the purpose for which it is used or provided, and thereby does not cause a risk to health and safety.
Equipment must be maintained in an efficient and good working order. All who use or supervise it
must have adequate information and training on the equipment and on health and safety. For example
in clearing jams. Specific risks must be eliminated where possible and controlled where not.
The Display Screen Equipment Regulations
Employers must make an assessment of the risks to health from workstations so those risks can be
reduced to the lowest level reasonably practical. This would include ensuring that the noise and heat
emitted by equipment such as desk top printers are taken into account when planning the workstation,
and that they are not at levels which would cause discomfort or distract the user.
The Manual Handling Operations Regulations
Employers must ensure that employees avoid hazardous manual handling operations so far as possible.
For example, by providing stable trolleys for delivering paper in bulk, ensuring that it is stored near to
the machines, and training employees on how to lift correctly.
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l HEALTH AND SAFETY INFORMATION SHEET
Page 3 of 3
The Personal Protective Equipment at Work Regulations
Employees must provide personal protective equipment (PPE) to employees as the last resort,
whenever health and safety risks cannot be adequately protected by other means. For example,
providing appropriate gloves for changing toner.
HOW CAN THE RISK OF HAZARDS BE AVOIDED OR REDUCED?
Employers must identify and assess any risks, and then take steps to avoid them wherever possible, and
reduce them so far as possible where not.
Employers must obtain the material safety data sheets (MSDS’s) for any chemical used by a
photocopier or other piece of machinery, including toner and glass cleaners and take all recommended
precautions. MSDSs’ must be made available to safety reps.
When replacing toners or using solvents, users should wear rubber or vinyl coated protective gloves
and if a liquid toner is used, safety goggles or a face shield. After adding toner, hands and face should
be washed immediately.
The manufacturer’s recommendations for siting, ventilation, cleaning, servicing, maintenance, and
frequency of filter changes must be obtained and followed. Filters that are in working order catch
paper dust and destroy ozone.
There must be a clear system outlining what cleaning and repairs employees are expected to carry out,
such as clearing a minor paper jam, and those for which a specialist technician should be contacted.
Staff who carry out minor cleaning and repairs must be given full training and information on technical
issues and on health and safety.
Noise problems can be avoided by placing equipment in a separate room from workers. Where this is
not possible, acoustic hoods can be placed over noisy printers, which can also be placed on absorbent
surfaces to help reduce noise and vibration. However, beware of false claims made for numerous other
devices and gadgets that supposedly reduce or prevent a whole range of hazards, real or otherwise, such
as the £70 metal attachment that “works to restore the bodies natural alpha rhythms.” At best they will
do no real harm apart from encourage complacency, but it may make the problem worse by preventing
proper action being taken.
As a general rule, the more frequently a copier is used or the more duplicating machinery there are, the
more important is a separate room with local (separate) mechanical exhaust ventilation. Properly
maintained modern machines placed in well ventilated areas, and with the appropriate but simple
precautions taken, are rarely a hazard.
We must always be vigilant regarding our health at work. Office worker generally have less concern for their safety but their health is generally not addressed by Health and Safety legislation but this is currently changing.
 

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There was an article about air quality in office buildings and it had a long list of laser printer models with their respective emissions of toner listed.
Anyone know where that is?

If you do need to buy a Laser printer, and I do, I might as well get one with low emissions.
 

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The bigger question is What doesn't kill you these days?

We have microwave popcorn to non stick frying pans to sunscreen to laser printers.
 
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