Obituary for a fax

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					Obituary for a fax
Harold Thimbleby1 and Matt Jones2
1
    UCLIC, University College London Interaction Centre, Gower Street, London, WC1E 6BT;
2
    Waikato University, Hamilton, New Zealand.

Abstract: The continual failure of personal technology highlights the growing problem of obsolete,
irreparable and non-recyclable toxic waste. Moore’s Law is a symptom of failure as much as a promise
of better technology. Better design could avoid the problems.

Keywords: Life cycle design.

                                                            plus the cost of repair, which was
Introduction                                                estimated at £200. A company sells the
This “obituary” tells the final story of a                  main board of the fax for £165.59, or £100
BT DF200 fax that was just five years old                   exchange (plus £5.00 for two-way
when it stopped working, and the light                      carriage). Figures exclude Value Added
went from its buttons. An earlier paper                     Tax, which adds 17.5%. The choices seem
described its day-to-day life, its design                   to be £335 minimum, or £124 with n o
and use [1]: the story is completed here                    guarantee that the main board is the only
by reviewing the end of its life cycle. For                 problem to fix. As described before [1],
concreteness this article refers to a                       the DF200 was already running on its
particular product: but it is a typical                     third main board, due to failures during
consumer product and has had a typical                      its warranty period. (For the last four
life cycle. This obituary, then, uses the                   years of its life it was wrapped in tape,
DF200 as an example to raise and                            since the repair engineer who last
question wider issues.                                      serviced it broke some of the weak casing
             BT DF200 1994–1999                             fixings.)
Cause of death: the fax died when power was                       Given than equivalent new faxes
restored after a mains power cut. A post-
                                                            cost from £140 and come with one year’s
mortem revealed the cause of death was
multiple component failure on the main PCB                  warranty, it makes no financial sense for
due to the power surge. The separate 24V                    the owner to repair the DF200. The DF200
power supply is operational and would have                  therefore joins the UK’s electronics
been made available for organ donation had                  landfill.
there been any way to make it available to                        The pricing of BT’s engineer call-
other power supply failure victims.                         outs is probably designed to cover costs
   Funeral arrangements: the DF200 will be                  (or to dissuade call-outs being made in
buried at a community landfill site in the                  the first place), rather than to build
normal way.
   Flowers may grow on the landfill site in
                                                            customer relations, preserve the
due course; however donations can be made                   environment, or even to collect lifecycle
to Thames Water, the main agency that will                  feedback on products in use in the field.
deal with the consequent leachate and other                 In contrast, Dixons (a consumer goods
pollution.                                                  store) offers annual repair contracts at
     At the time of writing, BT would                       £77, which suggests that BT prices their
repair the fax for a £85 engineer’s callout,                so-called service primarily to make a


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profit. Moreover, since Dixons are not                  Environmental costs have been
manufacturers, they get no useful                 discounted — or ignored — and
evaluation out of any servicing they              disgracefully so. For example, the DF200
subcontract.                                      contains six wired-in batteries
      A BT engineer we spoke to claimed           (nickel/cadmium), and has no
that the fault arose because of one or            instructions for their safe disposal. The
more “worn components” on the main                previous article [1] argued that human
board, which would have been killed by            costs, in terms of usability, had been
the power surge when electricity was              ignored. One might now argue that a
restored. In our view, electric outages are       wide range of human costs — physical
not an unanticipated occurrence, so the           and spiritual, environmental and
device design should allow for them.              psychological — have been disregarded.
When the (still functioning) switched             When, if, the European Waste from
mode power supply is switched on, it              Electrical and Electronic Equipment
produces no significant surge over its            (WEEE) Directive [2] is enforced, it will
24V operating voltage. Reference [1]              also raise legal issues.
noted that the operational device over-                 Most obituaries bring out the best
heated. In other words, the main board of         memories of the dead, but in the case of
the DF200 itself is under-rated and/or            the DF200, departed representative of the
badly suppressed, evidently with a                electronics consumer marketplace, to go
planned short time to failure. That the           so quickly and unnecessarily from
board is the third the DF200 has needed           desirable product to polluting debris is
appears to confirm the poor quality of            obscene. Its death, in such routine
design.                                           circumstances, should have been
                                                  avoidable.
Conclusions                                             Let the DF200’s passing not be in
Electronics can easily be made to survive         vain, and let this obituary redeem its
                                                  toxic contribution to the 900,000 tons of
for long periods in very harsh
                                                  electronic waste disposed of annually in
environments — for example, our Sony
                                                  the UK.
television is ten years old and has been
regularly switched on and off (and has
survived all the power cuts the fax has           References
experienced). A TV has much higher                1. H. Thimbleby, H. W., “Design for a
voltages that stress components more                 fax,” Personal Technologies,
than inside the fax. Thus one is led to              1(2):101–107, 1997.
assume that the DF200 was designed for a          2. Commission of the European
short life. Further, one is also led to
                                                     Communities, Proposal for a Directive of
assume that the supplier’s policy (in this
                                                     the European Parliament and of the
case, BT) is designed to encourage                   Council on Waste Electrical and Electronic
product replacement rather than product              Equipment, COM(2000) 347
repair. The engineer we spoke to explicitly
                                                     provisional, 2000.
advised replacement with a new product.
                                                     http://europa.eu.int/comm/environ
Clearly designers make trade offs in
                                                     ment/docum/00347_en.pdf
design, for example that of balancing
design time, product cost, reliability,           Correspondence to: Harold Thimbleby or Matt
servicing, recall and so forth.                   Jones. Email: harold@uclic.ucl.ac.uk or
                                                  always@acm.org. Harold Thimbleby is a Royal
                                                  Society-Wolfson Research Merit Award Holder.




        To appear in Personal and Ubiquitous Computing, 2002. ISSN 1617–4909


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