Printing matters
How can we stop printers from just adding to the e-waste problem?
Jane Turner looks at the options
This report primarily covers printers and all-in-ones (copiers
that can print, scan and fax) but it also covers the main brands of scanners.
Many of the companies featured also produce fax machines.
Nowadays, largely as a result of campaigning by development
and human rights organisations, many people make a connection between the
clothes they buy and the workers who make them. Consumers have some idea
of the long hours of toil and discomfort behind the labels 'Made in Bangladesh'
or 'Made in China'. The working conditions of the people who make computers
and their components are not yet so well known, but they are in many respects
similar.(5) NGO campaigns are now beginning to gain momentum and press attention
for working conditions in the electronics industry.
Labour standards
Nowadays, largely as a result of campaigning by development and human rights
organisations, many people make a connection between the clothes they buy
and the workers who make them. Consumers have some idea of the long hours
of toil and discomfort behind the labels 'Made in Bangladesh' or 'Made in
China'. The working conditions of the people who make computers and their
components are not yet so well known, but they are in many respects similar.(5)
NGO campaigns are now beginning to gain momentum and press attention for
working conditions in the electronics industry.
As in other sectors, all major IT companies are increasingly
outsourcing production to contract manufacturers in markets with lower labour
costs. South-east Asian countries, including China, Malaysia and the Philippines,
have become major producers of electronic products. In 2003, electronic
and electrical products accounted for 60% of total exports from the Philippines
and for two-thirds of exports from Singapore. They are also the highest
value export from Malaysia. There has been considerable investment in Mexico
by multinational companies to facilitate entry into the US and Canadian
markets. The IT sector uses toxic chemicals in manufacturing processes which,
without proper management, can have a significant impact on the local environment
and harm worker health and safety.(4)
The Code of Conduct category
Most campaigners agree that the best way to drive improvements in workers'
rights is to encourage the development of Codes of Conduct which address
workers' rights at supplier companies.
Of the companies in this report, virtually all of them receive
the bottom rating for Code of Conduct. In the majority of cases, either
there was no evidence that the company had a code or it did not respond
to our request for a copy of it. Only two companies out of the twenty in
this report - BT and Hewlett Packard - had a code and only BT's has been
independently verified. Philips did not have a code but said it had plans
to develop one.
Clean up your computer
In January 2004, The Catholic Agency for Overseas Development (CAFOD) launched
a campaign on poor labour practices in electronics factories in countries
such as Mexico, Thailand and China, whose customers include multinational
computer manufacturers. CAFOD's research alleges a range of employment practices
that contravene internationally-recognised standards, including "humiliating
strip searches, routine pregnancy testing and employment terms that undermine
workers' rights".(4)
The 'Clean Up Your Computer' report focussed on the three biggest
computer companies - Dell and IBM (which are not in this report) and Hewlett
Packard - and compared their Codes of Conduct. It found Hewlett Packard's
code to be superior to the other two but generally found that the companies'
responses to this problem were inadequate for the following reasons: o the
codes emphasise compliance with local laws rather than adherence to international
labour standards o none of the codes provides unequivocally for freedom of
association(5) For a copy of the full report, go to
www.cafod.org.uk/policypapers
A recent study by a European investment manager, ISIS, looked
at twelve IT companies and assessed their performance on labour standards
and environmental management. It looked at issues such as policy development,
monitoring and disclosure. The report found that there were shortcomings
in all areas but especially in relation to labour standards. The better
performance in environmental management could be explained by increasing
regulatory requirements, such as the WEEE EU Directive. It may also be because
financial savings can be made by the company from, for example, more efficient
resource consumption and energy saving in the manufacturing process.(4)
Labour standards are a newer issue for companies. These findings are borne
out by our own research for the Code of Conduct and Environmental Reporting
categories.
The Environmental Reporting category
Only
four of the twenty companies in this report - BT, Seiko Epson, Philips and
Ricoh - receive the top rating in our Environmental Reporting category.
Six get the middle rating because their reports are not independently verified.
Four get the bottom rating for producing an Environment Report without performance
targets or independent verification. Six more get the bottom rating because
they don't appear to have a report at all.
Computer TakeBack Campaign
The Computer Take
Back Campaign (CTBC), a US-based organisation affiliated to the Silicon
Valley Toxics Coalition, publishes an annual 'Report Card' grading companies
on the environmental quality of their equipment and their overall environmental
performances.
Companies are rated by CTBC in four categories: extended producer
responsibility (sustainable product design and takeback/recycling programmes),
use of hazardous materials, worker health and safety and degree of accessibility
of information.
The CTBC then grades each company as 'passing', 'needs improvement',
'poor' or 'failing', according to its score out of a total of 68. The following
are the results of the 2002 Report Card (the latest available) for companies
covered in this report:
| Company name |
Grade |
Score
(out of 68) |
| Canon |
Needs improvement |
33 |
| NEC (Japan) |
Needs improvement |
31 |
| Seiko Epson |
Needs improvement |
30 |
| Matsushita |
Needs improvement |
30 |
| HP/Compaq |
Poor |
23 |
| OKI |
Poor |
22 |
| Brother |
Failing |
19 |
| Sharp |
Failing |
18 |
| Samsung |
Failing |
17 |
| Lexmark |
Failing |
14 |
| Philips |
Failing |
12 |
| (Europe) |
Failing |
0 |
The Silicon Valley Toxics Coalition has also published reports
on the export of electronic waste ("e-waste") to developing countries. Whereas
under the Basel Convention the export of e-waste from Europe to developing
countries is prohibited, much of America's e-waste is exported for 'recycling'
to south-east Asia, particularly China. Lax enforcement of environmental
laws and workers' exposure to high levels of toxic materials, as well as
dumping of e-waste, have prompted a number of stakeholders to object on
environmental and health grounds.(4)
The technology
Laser printers versus inkjets
In the 1980s, dot-matrix and laser printers were predominant, with inkjet
technology not emerging in any significant way until the 1990s. The laser
printer was introduced by Hewlett-Packard in 1984. It worked in a similar
way to a photocopier, the difference being the light source. With a photocopier
and scanner a page is scanned with a bright light, while with a laser printer
the light source is a laser. After that the process is much the same, with
the light creating an electrostatic image of the page on a charged photoreceptor
or drum, which in turn attracts toner in the shape of an electrostatic charge.(1)
Laser printers produce much better quality black text documents
than inkjets, and they turn out more pages per month at a lower cost per
page than inkjets.(1)
Most lasers use cartridge technology based on an organic photoconductive
(OPC) drum, coated in light-sensitive material. During the lifetime of the
printer, the drum needs to be periodically replaced as its surface wears
out and print quality deteriorates. The toner cartridge is the other big
consumable item in a laser printer. Sometimes the toner cartridge and the
OPC drum are housed separately, but in the worst case, the drum is located
inside the cartridge. This means that when the toner runs out, the whole
drum containing the OPC cartridge needs to be replaced, which adds considerably
to the running costs of the printer and produces large amounts of waste.
The situation is even worse with a colour laser - which can
actually have up to nine separate consumable items (four colour toners,
an OPC belt or drum, a developer unit, a fuser unit, fuser oil and a waste
toner bottle).(1)
Some have tried to improve this situation by making drums
more durable and eliminating all consumables except for toner. Kyocera,
for instance, was the first manufacturer to produce a "cartridge-free" printer
which uses a silicon drum which lasts for the lifetime of the printer, so
the only item requiring regular replacement is the toner and even this comes
in a package made from a non-toxic plastic, designed to be incinerated without
releasing harmful gases.(1)
Although inkjets were available in the 1980s, it was only
in the 1990s that prices dropped enough to bring the technology to the high
street.(1)
Traditionally, inkjets have had one massive attraction over
laser printers: their ability to produce colour and photographic-quality
output cheaply. That is what makes them so popular with home users. The
down side is that although inkjets are generally cheaper to buy than lasers,
they are more expensive to maintain. Cartridges need to be changed more
frequently and the special coated paper required to produce high-quality
output is very expensive. When it comes to comparing the cost per page,
inkjets can work out about ten times more expensive than laser printers.(1)
Which? magazine recommends that if you want to do photo printing,
an ink jet is best and it does text well too. A black and white laser is
best if you only want to do black and white text, because they are faster
and cheaper to run and output better quality text. Colour laser printers
are not very good for photos but can do more basic colour printing more
quickly.(2)
All-in-ones
These machines are capable of printing, copying, faxing and scanning and
even emailing. According to Xerox, the annual energy consumption of a Xerox
multifunction system is 25 per cent less than the combined annual energy
consumption of the individual Energy Star qualified copier, fax and printers
it replaces. They also save on raw materials by having all the functions
in one box.
However, Which? found that the quality of the outputs from
these machines was not as good as from separate machines although they do
save on space and cost less to buy than buying a number of separate machines.(3)
All-in-one machines can have inkjet or laser printers and therefore have
all the associated consumables - ink, toner, drums. If you don't need a
fax machine in this age of email and the internet, you can buy all-in-ones
without fax capability.
Scanners
Scanners enable you to digitalise photos, slides, negatives, drawings or
text (using optical character recognition). You can then edit the image
for printing or emailing. Most of the scanners on the market are flatbed
models which allow you to scan from magazines and books. Sheet fed models
are often found in all-in-one machines. Scanners do not require any consumables.
Reliability
Which? did a survey in 2002 of
its readers and found that Hewlett Packard scored 'above average' on reliability
whilst Canon, Epson and Lexmark scored 'average'.(2)
Environmental Impact
The criteria document for the Nordic Swan Ecolabel states that the main
environmental impact of copying machines, printers, fax machines and all-in-ones
occurs during their use and waste phases. The chief environmental problem
associated with these machines is high energy consumption. A further important
environmental impact is their consumption of paper.(6)
Large quantities of waste are generated when the products
come to the end of their life cycle. Waste is also generated as a result
of the replacement of parts that wear out, e.g. combined toner cartridges.(6)
Other environmental impacts are associated with the use of
dangerous substances in the products such as flame retardants, heavy metals
and plasticisers in plastics. Emissions of these substances largely take
the form of leakage from waste disposal sites or through emissions to air
in connection with incineration. The products may also represent a source
of pollution in the working environment through the generation of heat,
emissions to air and noise.(6)
An EU Directive on the restriction of hazardous substances
in electrical equipment (RoHS) will ban the use of lead, mercury, cadmium,
hexavalent chromium, polybrominated biphenyls (PBBs) and polybrominated
diphenyl ethers (PBDEs) in new appliances from 1 July 2006. Although most
of these substances are no longer used by the electronics industry, the
ban includes the use of plastic recyclate containing PBBs or PBDEs.(7)
Many machines are now able to print out on both sides of the
paper (duplexing) and to reduce several pages onto a single sheet. If such
functions are made available to the user and are used when appropriate,
they will serve to considerably reduce the environmental impact of copying
and printing.(6)
Ecolabels
Three main European ecolabels have developed criteria which address all
these environmental impacts. They are the German Blue Angel, the Nordic
Swan and the Swedish TCO label.
Few information technology suppliers have applied for such
eco-labels because they argue that there is little demand for "green" IT
products among consumers.(4) Instead, they prefer standardised self-declarations
of product information such as the Nordic NITO scheme or the relatively
undemanding Energy Star label.(1)
Developed by the US Environmental Protection Agency, the Energy
Star was adopted at EU level in 2001. It sets minimum requirements for energy
consumption for a range of office equipment, including PCs, monitors, printers
and faxes.(5)
But several board members are unhappy about the apparent lack
of ambition in setting tough performance criteria. Some countries, including
the Netherlands, Denmark and Germany, are also dissatisfied. The Austrian
Energy Agency, for example, claims that the Energy Star standards for all
office equipment are "obsolete", with 80% of equipment supplied by major manufacturers
in the Austrian market in compliance.(5) For more information, check out
www.energystar.gov
Jan-Willem Scheijgrond, a spokesperson for EICTA, the European
trade association for IT equipment manufacturers, argued that eco-labelling
schemes were bureaucratic, costly and quickly outdated. But he acknowledged
that public procurement and corporate purchasers are driving demand.(1)
This is the reason that most of the machines that are ecolabelled are office
machines. Brother and Kyocera-Mita are the only companies producing eco-labelled
machines suitable for the home office.
The criteria
All three ecolabels share common criteria but each also has additional criteria.
The common criteria are:
- maximum power consumption levels
- modular design
to facilitate repairs and recycling
- a proportion of plastic and metal
parts must be recyclable and labelled
- no PBB or PBDE halogenated flame
retardants or chlorinated paraffins
- no cadmium, lead or mercury
- limits
on dust and ozone emissions and noise levels
The additional criteria are
listed below under each ecolabel.
TCO label
TCO Development, owned by a Swedish trade union, began producing eco-labels
for office equipment in 1992 following concern about potential health risks
to workers from computer monitors. It has since expanded to cover other
computer equipment, printers and mobile phones.(1) The scheme appears to
dominate the market for monitors, with over 2,000 models awarded the label,
but has achieved little take-up for other products. So far only Brother
has applied for and acquired the label for printers.(1)
The additional criteria required for a TCO label are:
- chlorinated plastics such as PVC, chlorinated solvents
and freons (CFC, HCFC) are banned
- more stringent energy consumption criteria (eg. in stand-by
mode power must not exceed 16W(1)). The Blue Angel and Nordic Swan criteria
follow the weaker Energy Star standard.
- the manufacturing plant must be certified to ISO14001 or
its European equivalent, EMAS, and the manufacturer must have an environmental
policy.(1)
- ergonomics and design criteria take into account people
with disabilities
- double-sided printing is recommended but not mandatory.(2)
To check out the full criteria for printers go to the
TCO website
TCO labelled machines
Brother laser printers for small 'workgroups': HL-7050, HL-7050N, HL-6050DN,
HL-6050N, HL-6050 Brother all-in-ones for 'workgroups': MFC-8820DN, MFC-8820D,
MFC-8420, DCP-8025DN, DCP8025D, DCP-8020 All, except HL-6050, have duplexing
as standard
Blue Angel
About 3,800 products and services from approximately 710 label users
in Germany and abroad are entitled to bear the Blue Angel. The Blue Angel
is the first and oldest environment-related label in the world for products
and services. It was created in 1977 on the initiative of the German Federal
Minister of the Interior and approved by the Ministers of the Environment
of the national government and the federal states.
Once approved, eco-labelled products are reviewed every two
or three years to reflect state-of-the-art developments in ecological technology
and product design. The criteria for printers, copiers and multifunction
devices were changed in 2003 which meant that the requirements for acquiring
the Blue Angel ecolabel are now more demanding. As a result, no printers
or copiers have yet been awarded the current Blue Angel ecolabel, only two
multifunctional devices.
The additional criteria required for a Blue Angel label
are:
- no AZO colorants in toners and inks o benzene, styrene and
VOC emissions restricted
-
must be able to use 100% post-consumer recycled paper
- spare parts must
be available for five years
- drums must not contain cadmium, lead, mercury
or selenium
- no harmful toners or inks
- manufacturer must take back old
machine and toner cartridges and drums for reuse or recycling
- machine
must be capable of duplexing either automatically or manually.
Full criteria
Blue Angel labelled all-in-ones: Konica Minolta business machines:
Di 3510, Di 3510f
Nordic Swan
The Swan is the official Nordic ecolabel, introduced by the Nordic Council
of Ministers in 1989. The green symbol is available for around 60 product
groups, everything from washing-up liquid to furniture and hotels can carry
the Swan label.
The label is usually valid for three years, after which the
criteria are revised and the company must reapply for a licence so that
products better suited to the environment are constantly being developed.
The additional criteria required for a Nordic Swan label
are:
- use of some recycled or reused plastic parts
- benzene, styrene and
VOC emissions restricted
- spare parts must be available for seven years
- drums must not contain cadmium, lead, mercury or selenium
- no harmful
toners or inks
- CFCs, HCFCs, 1.1.1 trichloro-ethane or carbon tetrachloride
must not be used in production
- phthalate and chlorinated plastic use restricted
- manufacturer must take back old machine and toner cartridges and drums
for reuse or recycling
- machine must be capable of duplexing either automatically or manually
Full criteria
Nordic Swan labelled machines
Kyocera Mita b&w desktop laser printers
ECOSYS FS-1010 / FS-1050 (14 ppm), ECOSYS FS-1900 (18ppm) with duplex, ECOSYS
FS-3800 (24 ppm) with duplex Long-life components: Drum is guaranteed to
last for up to 500,000 pages or three years. In all Kyocera Mita models,
the drum is separate from the toner. Konica Minolta business all-in-ones:
Di251, Di351
Sharp business machines
All-in-ones: AR-163, AR-206, AR-235, AR-275, AR-C160, AR-C250, AR-C270,
AR-C260M, AR-C260P, AR-M160, AR-M205, AR-M236, AR-M276, AR-M300N, AR-M350N,
AR-M450N, AR-M300U, AR-M350U, AR-M450U, AR-M550U, AR-M550N, AR-M620U, AR-M620N
Printers: AR-P350, AR-P450
Ozone
Laser printers, copiers and some plain paper fax machines rely on high voltages
to make the toner powder stick to the drum before its transfer to paper.
This process generates ozone.
The ozone layer in the upper atmosphere acts as an essential
shield against the sun. But, at ground level, ozone is a toxic gas with
a distinctive odour. It can irritate the eyes, nose and throat and cause
lethargy, tiredness, loss of concentration, headaches and upper respiratory
tract disorders. People who suffer from asthma are particularly susceptible.(4)
As a general rule it is best to avoid prolonged exposure and
ensure that work areas are well ventilated. Ozone filters must be changed
regularly and printers should not be grouped together with plain paper faxes
and photocopiers. If extra air filtering is needed, you can buy air purifiers
which filter out ozone. In addition, all printers should be positioned at
least three feet away from staff with ventilation fans facing away from
users.(4)
Refill not landfill
Remanufacturing cartridges
According to Waste Watch, in 1999 over 7 million toner printer cartridges
were consumed in the UK. Three-quarters of these were thrown away, accounting
for as much as 15,000 tonnes of waste plastic and metal. Recycling cartridges
not only reduces waste, but also reduces the need for raw materials; each
laser cartridge that is recycled conserves the equivalent of approximately
one litre of oil.(10)
Most types of toner cartridge can be remanufactured. There
are now more than 120 companies in the UK remanufacturing cartridges. The
cartridges are completely dismantled and cleaned, any worn parts are replaced,
and the drum either re-coated or replaced. They are then refilled with fresh
toner, tested and sold with a guarantee. One in four cartridges sold in
the UK is remanufactured. (10)
Some major companies which supply laser printers take back
their own cartridges. However, they are not necessarily remanufactured,
but broken up into their constituent parts, some sent for reprocessing and
some discarded as waste. HP recycles returned HP LaserJet cartridges into
products such as buttons, spectacle cases and bicycle stands. HP has recycled
more than 46 million cartridges, diverting approximately 60,000 tonnes of
waste from landfill around the world. However, this is less environmentally
beneficial than remanufacturing.(10)
Some companies have introduced anti-recycling devices (ARDs)
to their cartridges, for example the Lexmark Optra T cartridges and the
HP 4100 cartridges as well as many Epson cartridges. These contain electronic
chips similar to those found in phone cards, that interact with the printer's
software. If the cartridge is remanufactured the printer unit will continue
to display a "toner low" message. Wastewatch suggests that, when buying
a new laser printer ensure that its cartridges can be remanufactured.(10)
Refilling cartridges
Inkjets
Refilling inkjet cartridges is straightforward and can be done on
a DIY basis (with a syringe), with a number of companies supplying the ink
and refilling equipment, although it is also possible to send them away
for refilling.
Friends of the Earth warned that the refilling of printer
cartridges could be wiped out unless the UK Government includes them in
a new EU waste law which is due to be implemented in August. Printer cartridges
contain chips which record the amount of ink left in them. But manufacturers
are inserting a new type of 'killer chip' into the cartridges which means
they cannot be reset when they are refilled with ink. This will make refilling
impossible, and will be bad news for the environment as reuse is far better
than the landfilling or recycling of empty cartridges. It will also be bad
news for consumers because refilled cartridges are much cheaper than buying
new ones.(9)
The problem could be resolved if the Government includes cartridges
when it implements the EU Waste Electrical and Electronic Equipment (WEEE)
Directive. Under Article 4 of the directive, equipment must not include
any design features which prevent it from being re-used, unless there is
a safety or environmental reason for doing so. But, the DTI currently defines
printer cartridges as 'consumables', not `equipment'. Unless the Government
changes its proposals, the reuse of printer cartridges could be wiped out.
At the time of writing, consultation on the Directive was due to end.(9)
Lasers
It is also possible to refill toner cartridges at home using kits which
enable you to pour toner into laser cartridges. While this is certainly
the cheapest method of refilling your cartridges, readers may be concerned
by the Carbon Black issue.
Carbon Black is a controversial amorphous carbon pigment,
which is used almost universally as the pigment for any deep black products,
from car tyres to paints. Concerns were raised over its safety after a group
of Swedish scientists linked it with cancer in the early 1990s, while other
studies have linked it with genetic mutation. Evaluations by the Health
and Safety Executive in the late 1990s, based on a number of different studies,
reveal that the initial fears about its carcinogenic effects were exaggerated
and suggest that even in occupational use the material should not be considered
toxic.(13) Toner is regarded by America's OSHA only as a particulate.(11)
As such, toner dust can irritate the respiratory tract if inhaled.12
As always, it is best to use caution. The current recommendations
are to avoid skin contact and use a dust mask to avoid inhalation of toner.
Refill toner kits come with a mask and surgical gloves. If any of the material
is spilt, it should be cleaned up with a damp cloth and hands should always
be washed after completing the procedure.
What can you do?
Look out for the UK Cartridge Recyclers Association (UKCRA) label on printer
cartridges - it indicates membership of UKCRA, a voluntary body which has
its own standards. See links below for more info.
For information on refilling and remanufacturing cartridges,
search the web for companies like
www.cartridgeworld.org,
www.theinkfactory.co.uk or
www.refilltoner.com
For a list of companies and charities that collect and recycle
toner and ink jet cartridges check out the Waste Watch website.
Recycling machines
The EU Directive on waste electrical and electronic equipment (WEEE), currently
being transposed into UK law, will require companies that manufacture electrical
appliances or sell own-brand appliances to foot the bill for the refurbishment,
recycling and recovery of those products that are collected for recycling.(7)
By 13 August 2005, local authorities must have set up collection
or take-back schemes which allow users to return their waste products free
of charge. Producers need to have financed these collection and disposal
routes. The directive was intended to make distributors take back like for
like products when a user is buying a new product - a straight swap if you
like; however a caveat has been added to the legislative text that gives
the producers an opt-out clause, so it remains to be seen how many provide
this option.(8)
Different recycling/reuse and recovery targets must be met
for various categories of appliances by 31 December 2006. For example, 75%
of IT, telecommunications and consumer equipment must be recovered and 65%
recycled or reused. (7)
Until then, Waste Watch advises that redundant machines should
be reused. In addition to traditional second-hand outlets, there are a number
of schemes looking at ways of passing on electronic equipment no longer
required to other users. By this means, the life of products can be extended
- a more environmentally desirable option than recycling (assuming the product
is working efficiently). After reuse, the next best option is refurbishment
and lastly recycling - breaking it down into its constituent parts and removing
harmful and toxic elements. Check out Waste
Watch for a list of UK IT refurbishers and recyclers.
|
60 second green guide
- use the draft or economy or toner saver setting
on printers to save toner or ink
- use a duplex for double-sided printing or, manually,
print the odd numbered pages first, turn over the paper and print
the even pages
- use paper that's been printed on one side in the
printer or fax machine
- buy a laser printer which has a separate drum and
toner cartridge so that each part can be replaced separately
- buy a laser printer with a long-life drum
- refill ink and toner cartridges and buy remanufactured
drum units
- set your printer's or copier's sleep mode, so when
it's not actually printing/copying the energy consumption is minimal
- change ozone filters on copiers, laser printers
and fax machines which use toner
- use emails and electronic fax facilities and don't
print them out
- don't use fax cover sheets and set machine so it
doesn't print a transmission report
- don't print hard copies of documents unless absolutely
necessary - store them electronically
- buy second-hand machines. Drivers are usually available
from the manufacturer
- send redundant machines to be recycled
|
References
1 ENDS Report, March 2003
2 www.tcodevelopment.com
Printers criteria pdf, 29/11/99
3 http://www.blauer-engel.de/englisch/navigation/body_blauer_engel.htm
4 ENDS Report, January 2000
5 ENDS Report, November 2003, 346
6 Ecolabelling
of Copying Machines, Printers, Fax Machines and Multifunctional Devices
- Criteria document, Nordic Ecolabelling (September 2002)
7 ENDS Report,
February 2004
8 Wasteline,
Electrical and Electronic Equipment Information sheet September 2003
9 Friends of the Earth press release, 'KILLER CHIP' THREAT TO REFILL PRINTERS',
Feb 10 2004
10 Wasteline,
Recycling toner cartridges Information sheet, January 2002
11 www.refilltoner.com,
March 2004
12 The Green Office Manual - Wastebusters Ltd, 2000
13 www.parliament.the-stationery-office.co.uk/