Theos-Talk Archives (August 2007 Message tt00010)

 Hi
Since the url I posted needed access permission, here is the summary;

mkr
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 Table 1. Summary of Results for Printer Emission Investigations, Based on
the Ratio of Submicrometer Particle Number Concentration Peak Value Emitted
by the Printer to the Background Value (measured by P-Trak)

non-emitter (ratio 1)

low level emitter (ratio < 1.1-5)

middle level emitter (ratio < 5.1-10)

high level emitter (ratio > 10)

HP Color LaserJet 4550DN (1)

Canon IRC6800 (1)

HP LaserJet 1020 (1)

HP Color LaserJet 4650dn (1)

HP Color LaserJet 8500DN (1)

HP LaserJet 5M (3)

HP LaserJet 4200dtn (1)

HP Color LaserJet 5550dtn (1)

HP LaserJet 2200DN (1)

HP LaserJet



HP Color LaserJet 8550N

HP LaserJet 2300dtn (1)

9000dn (1)



(1)

HP LaserJet 4 plus (1)

RICOH



HP LaserJet 1320N (1)

HP LaserJet 4000N (1)

CL3000DN (1)



HP LaserJet 1320n (1)

HP LaserJet 4000TN (1)





HP LaserJet 2420dn (1)

HP LaserJet 4050N (2)





HP LaserJet 4200dtn*a* (1)

HP LaserJet 4050TN (6)





HP LaserJet 4250n (old)

HP LaserJet 4si (1)





(1)

HP LaserJet 5(b) (1)





HP LaserJet 4250n (new)

HP LaserJet 5000n (1)





(1)

HP LaserJet 5100tn (2)





HP LaserJet 5(a) (1)

HP LaserJet 5N (2)





HP LaserJet 8000DN*a* (1)

HP LaserJet 5si (1)





HP LaserJet 8150N (1)

HP LaserJet 5si/NX (1)





TOSHIBA Studio 450 (1)

HP LaserJet 8000DN (2)







HP LaserJet 8150DN (3)







Mita DC 4060 (photo copy) (1)







RICOH Aficio 2022 (1)







RICOH Aficio 3045 (1)







RICOH Aficio 3245C (3)







RICOH Aficio CC3000DN (1)







TOSHIBA Studio 350 (1)







*a* Possible high emitter.
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Table 2. Summary of the Estimated Particle Emission Rates from Chamber Tests
for Three Different Printers (Particle Numbers Concentration Measured by the
Condensation Particle Counter 3025A, PM2.5 Measured by DustTrak)


emission rate (particle min-1 × 109)

PM2.5 emission rate (g min-1)

printer ID*a*

cartridge

toner coverage

testing number

average

S.D.

average

S.D.

A

new

5%

3

0.04

0.01

0.29

0.07

B

old

5%

2

4.21

3.66

NE*b*



B

old

50%

2

9.54

8.23





C

old

5%

3

41.1

12.0

NE*b*



C

old

50%

2

92.8

0.99





C

new

5%

2

76.3

18.8





C

new

50%

1

159







*a* Printer ID: A = HP LaserJet 5M, B = HP LaserJet 1020, C = HP LaserJet
1320n.*b* NE: no emission rate.
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