Copier Drum

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GENUINE Konica Minolta BIZHUB 1050 1050E 1050P DRUM DR010 $235.00 Time Remaining: 29d 14h 43m Buy It Now for only: $235.00 Buy It Now

Copying Machine Parts OPC Drum for Xerox 286 W840 W850 $36.40 Time Remaining: 2h 18m

2 NEW GENUINE Konica Minolta DR510 024K Drums $149.00 (1 Bid) Time Remaining: 2d 12h 44m

GENUINE NEW Xerox 4250 4260 Smart Kit Drum Cartridge 113R755 113R00755 $189.99 Time Remaining: 26d 16h 39m Buy It Now for only: $189.99 Buy It Now

RICOH Aficio MPC3500 4500 Black Drum Unit B2232042 NEW $50.99 (2 Bids) Time Remaining: 2d 20h 56m

CANON IMAGERUNNER 3300 2800i 2800G 2800 2220N 2220i 2200i 2200G 2200 DRUM UNIT $141.95 Time Remaining: 23d 3h 31m Buy It Now for only: $141.95 Buy It Now

New Genuine Genuine XEROX 13R589 Drum Cartridge 013R00589 $100.00 (1 Bid) Time Remaining: 3d 13h 6m

Replacing Drum Cleaning Blade for Konica Minolta EP8015 $9.90 Time Remaining: 7h 12m

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Copier Cartridge Drum Cleaning Blade for Toshiba BD358 $10.52 Time Remaining: 5h 36m

Drum Cleaning Blade Parts for Konica Minolta DI 250 251 $10.75 Time Remaining: 10h 36m

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NEW KONICA MINOLTA BIZHUB 600 601 750 751 DRUM DR710 $99.00 (1 Bid) Time Remaining: 3d 20h 40m

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XEROX 013R00588 DRUM CARTRIDGE WORK CENTRE PRO C2128C2636C3545 NIB OEM $69.00 (1 Bid) Time Remaining: 2d 5h 41m

Replacing Drum Cleaning Blade for Konica Minolta EP1054 $12.06 Time Remaining: 6h 42m

1322A002AA GENUINE CANON C250D C330D NP6330 Black DRUM Unit F48 0032 700 GENUINE $119.99 Time Remaining: 28d 14h 46m Buy It Now for only: $119.99 Buy It Now

NEW Xerox Genuine Drum Cartridge 013R00588 for C2128 C2636 C3545 13R588 $99.88 Time Remaining: 11h 59m Buy It Now for only: $109.88 Buy It Now

Genuine Xerox Drum Cartridge for WorkCentre M20 M20i CopyCentre C20 $43.00 Time Remaining: 29d 10h 49m Buy It Now for only: $43.00 Buy It Now

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NEW RICOH OEM PTB223 2042 B W DRUMS EXCELLENT BOXES ORIGINAL RICOH $102.50 (2 Bids) Time Remaining: 5d 13h 19m

NEW Panasonic DQ UH35H OPC Drum for DP190 Copier $59.99 Time Remaining: 15d 18h 54m Buy It Now for only: $59.99 Buy It Now

Replacing Drum Cleaning Blade for Toshiba BD 169 208 $11.66 Time Remaining: 10h 49m

Sharp Drum OEM SF 250DR for SF2050 2052 SD2050 $100.00 Time Remaining: 28d 14h 39m Buy It Now for only: $100.00 Buy It Now

Repair Drum Cleaning Blade for Konica Minolta KNC 7020 $12.45 Time Remaining: 21h 45m

Drum Cleaning Blade Parts for Konica Minolta KNC 7025 $15.82 Time Remaining: 1d 40m

Genuine Oce Drum Unit type 473 7 $30.45 Time Remaining: 28d 13h 12m Buy It Now for only: $30.45 Buy It Now

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DR411 GENUINE KONICA MINOLTA BIZHUB 223 283 363 423 DRUM UNIT A2A103D $105.00 Time Remaining: 28d 12h 22m Buy It Now for only: $105.00 Buy It Now

Copier Drum Cleaning Blade for Konica Minolta KNC 7022 $12.83 Time Remaining: 13h 2m

Genuine Ricoh A2309510 OEM Drum NIB $69.00 Time Remaining: 4d 16h 34m

CANON GPR 6 DRUM UNIT 6648A004AA imageRUNNER 2200 2800 GENUINE FACTORY SEALED $125.00 Time Remaining: 29d 21h 51m Buy It Now for only: $125.00 Buy It Now

Genuine Ricoh A2309510 OEM Drum NIB $69.00 Time Remaining: 4d 16h 35m

FOUR 4 C6500 5500 6501 5501 DRUM DU102 C KONICA A0400Y4 BRAND NEW OEM $700.00 Time Remaining: 8d 5h 17m Buy It Now for only: $700.00 Buy It Now

6 IMAGISTICS 461 0 DRUMS DL55 46 IM5520 4720 COPIERS $295.00 Time Remaining: 2d 12h 13m

OCE IMAGISTICS 794 6 DRUMS 10 EA $155.00 Time Remaining: 2d 12h 44m

GENUINE XEROX 013R00603 13R603 NIB COLOR DRUM 240 242 250 252 $155.00 Time Remaining: 15d 14h 40m Buy It Now for only: $155.00 Buy It Now

KONICA 7812 BLACK TYPE C2 OEM NEW IN BOX 950 175 Image Drum $19.99 Time Remaining: 9h 36m Buy It Now for only: $32.99 Buy It Now

Canon GPR 11 GPR 11 GPR11 Drum Unit Kit Cyan $96.99 Time Remaining: 29d 12h 35m Buy It Now for only: $96.99 Buy It Now

Copying Machine Parts OPC Drum Grn for Xerox DC 235 285 $34.88 Time Remaining: 17h 35m

Copier Drum Cleaning Blade for Konica Minolta KNC 7022 $15.68 Time Remaining: 19h 2m

Genuine Ricoh B2232042 B223 2042 Black Drum Unit MP C2500 C3000 C3500 C4500 $109.00 Time Remaining: 5d 9h 43m Buy It Now for only: $109.00 Buy It Now

Copying Machine Spare Parts OPC Drum for Aficio SP1000S $16.67 Time Remaining: 6h 54m

Copier Drum Cleaning Blade Kyocera Mita DC1856DC2355 $5.99 Time Remaining: 7d 23h 2m Buy It Now for only: $5.99 Buy It Now

Canon GPR 20 21 Cyan Laser Drum Unit Cartridge 0257B001AA $127.01 (4 Bids) Time Remaining: 1d 15h 24m

Replacement Drum Cleaning Blade for Ricoh Aficio 150 $10.36 Time Remaining: 8h 9m

Canon GPR 11 GPR 11 GPR11 Drum Unit Kit Black $96.99 Time Remaining: 29d 12h 12m Buy It Now for only: $96.99 Buy It Now

Replacing Copier Drum Cleaning Blade for Ricoh AF 1018 $8.98 Time Remaining: 20h 22m

Copy drum unit cartridge 13R544 for Xerox XC800 XC1000 XC1200 series copier $169.99 Time Remaining: 24d 11h 56m Buy It Now for only: $169.99 Buy It Now

Ricoh Aficio B214 2302 Used Copier Drum Unit Removed From Ricoh 3224 Printer $150.00 Time Remaining: 1d 6h 42m

Drum Cleaning Blade for Konica Minolta EP 6000 6001 $10.19 Time Remaining: 2d 51m

F43 1701 740 GENUINE CANON NP 4335 4835 6835 DRUM F431701740 $189.99 Time Remaining: 28d 14h 43m Buy It Now for only: $189.99 Buy It Now

6 EA OCE IMAGISTICS IM2330 2830 DRUMS 487 1 $165.00 Time Remaining: 2d 12h 39m

C6500 C6501 C6000 7000 DRUM DU104 KONICA MINOLTA A2VG0Y0 BRAND NEW OEM $200.00 Time Remaining: 27d 15h 14m Buy It Now for only: $200.00 Buy It Now

Copier Drum Cleaning Blade for Toshiba E Studio 280 163 $9.13 Time Remaining: 22h 37m

5 Toners 1 Drum Konica Minolta TN144 DR114 Bizhub 162 180 210 211 $65.00 Time Remaining: 18h 4m Buy It Now for only: $200.00 Buy It Now

Canon GPR 11 GPR 11 GPR11 Drum Unit Kit Magenta $96.99 Time Remaining: 22d 13h 29m Buy It Now for only: $96.99 Buy It Now

Canon GPR 20 21 Yellow Laser Drum Unit Cartridge 0255B001AA $92.51 (3 Bids) Time Remaining: 1d 15h 30m

GENUINE XEROX 013R00603 13R603 13R602 013R00602 COLOR DRUM SET 240 242 250 252 $519.99 Time Remaining: 15d 13h 39m Buy It Now for only: $519.99 Buy It Now

NEW Genuine Kyocera Mita 82220238 KM C1530 YELLOW IMAGE UNIT DRUM OEM $39.99 Time Remaining: 3d 8h 50m

KONICA MINOLTA IMAGISTIC DRUM DEVELOPER UNITS1 DR612K 3 DV612K BLACK $495.00 Time Remaining: 3d 11h 9m

Organic Photo Conductor Drum B1329510 $100.00 Time Remaining: 3d 18h 57m Buy It Now for only: $100.00 Buy It Now

Drum Cleaning Blade Repair Parts for Toshiba BD 169 168 $11.62 Time Remaining: 1d 49m

Q3950A HP Color LaserJet 2840 Color Laser Copier Printer scanner NO drum toner $190.00 Time Remaining: 25d 15h 43m Buy It Now for only: $190.00 Buy It Now

NEW Genuine Kyocera Mita 82220240 KM C1530 CYAN IMAGE UNIT DRUM OEM $39.99 Time Remaining: 3d 8h 51m

Repair Part Copier OPC Drum for Ricoh Aficio 1015 2015 $24.64 Time Remaining: 1d 1h 11m

CANON DRUM GPR 22 FOR IR 1025 IR 1023 $49.99 Time Remaining: 11d 17h 17m Buy It Now for only: $49.99 Buy It Now

Replacement OPC Drum Top Roller Gear for Minolta K7145 $12.03 Time Remaining: 1d 13h 20m

Genuine Ricoh Drum + BladeBrush B2349510 B234 9510 B2343564 B234 3564 B2343590 $265.00 Time Remaining: 26d 16h 29m Buy It Now for only: $265.00 Buy It Now

Risograph Riso EZ 220U w Black Drum $51.00 (2 Bids) Time Remaining: 5d 13h

GENUINE XEROX DOCUCOLOR 240 250 252 260 DRUM Set Black COLOR $411.00 (6 Bids) Time Remaining: 3d 14h 35m

Genuine Ricoh Brand Drum Cleaning Blade Model AD04 1140 AD041140 NEW NIB $19.95 Time Remaining: 27d 7h 51m Buy It Now for only: $19.95 Buy It Now

Canon GPR 20 21 Yellow Laser Drum Unit Cartridge 0255B001AA $26.00 (2 Bids) Time Remaining: 1d 15h 28m

Lot of 11 Xerox DocuColor 240 250 242 252 260 Drum Toner Fuser Wcont $1,195.00 Time Remaining: 3d 22h 51m Buy It Now for only: $1,195.00 Buy It Now

Canon GPR 20 21 Cyan Laser Drum Unit Cartridge 0257B001AA $37.00 (2 Bids) Time Remaining: 1d 15h 26m

Ricoh B246 9510 B070 9510 A295 9510 Drum OPC NEW OEM Savin Lanier $99.99 Time Remaining: 2d 12h 1m Buy It Now for only: $124.99 Buy It Now

GENUINE KONICA MINOLTA C500 DRUM UNIT OEM $169.00 Time Remaining: 1d 13h 49m Buy It Now for only: $169.00 Buy It Now

Photoreceptive drum KATUN OPC KONICA copier printer k323 pcua 950 253 01QU 2029 $37.99 Time Remaining: 1d 6h 19m Buy It Now for only: $65.00 Buy It Now

KONICA MINOLTA DRUM 7075 FORCE75 DP75 950641 $200.00 Time Remaining: 13d 19h 8m Buy It Now for only: $200.00 Buy It Now

Replacing Drum Cleaning Blade for Canon IR1600 IR2000 $10.28 Time Remaining: 3d 9h 5m

OPC Drum Top Roller Gear Spare Part for Minolta K7145 $11.44 Time Remaining: 1d 46m

DU 103 GENUINE KONICA MINOLTA DRUM UNIT BIZHUB PRESS C8000 A22C0Y1 $259.00 Time Remaining: 28d 12h 43m Buy It Now for only: $259.00 Buy It Now

Copier Drum Cleaning Blade for Konica Minolta DI350 351 $9.37 Time Remaining: 3d 10h 59m

GENUINE Xerox Drum Cartridge 013R00579 NOB $84.00 Time Remaining: 6d 17h 16m Buy It Now for only: $84.00 Buy It Now

Drum Cleaning Blade Replacement for Konica K7050 7090 $12.36 Time Remaining: 21h 36m

Amaranth Copier Spare Parts OPC Drum for Canon NP6012 $22.45 Time Remaining: 3d 12h 52m

FOUR 4 DU 101 Drum Units for Konica Minolta bizhub C500 8050 CF 5001 $670.00 Time Remaining: 29d 6h 18m Buy It Now for only: $670.00 Buy It Now

Replacing Drum Cleaning Blade for Konica Minolta DI 450 $9.79 Time Remaining: 1d 23h 50m

What is the surface charge density of the drum?

The electric field just above the surface of the conducting charged drum of a photocopying machines has a magnitude of 2.2 X105 N/C. The drum has a length of 58 cm and a radius of 19 cm.
(a) What is the surface charge density of the drum? (You can ignore any edge effects.)
(b) What is the total charge on the drum?

(a) Gauss' law says integral(E dA) = Q/e0, where e0 is the permittivity of free space. You don't specify the geometry of the field, but if it's radially symmetric then
dQ/dA = e0 E = (9e-12 F/m)(2.2 X105 N/C)
Q = (2.2 X105 N/C)pi(0.19m)^2(0.58m) (9e-12 F/m)

(b) Q (12.67/19)^2 (29/58)

veddy gut, veddy gut indid.
m

Brother Printer DCP7065DN Monochrome Laser Multi-Function Copier with Duplex and Networking List Price: $179.99 Sale Price: $129.99 You save: $50.00 (28%)   Eligible for free shipping! Availability: Usually ships in 24 hours See Reviews For This Product Description The DCP-7065DN is a laser multi-function copier with networking and automatic duplex ideal for small offices or home offices. It produces fast, high-quality monochrome laser printing and copying at up to 27ppm, as well as color scanning into one space-saving design...

New CANON USA L-50 Black Copier Toner/Drum For Canon PC1060 PC1061 PC1080F Imageclass D620 D660 D661 List Price: $316.18 Sale Price: $186.99 You save: $129.19 (41%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Notice:$50 charge per refused shipment unless the refusal is based on our error.Customers should thoroughly inspect all cartons for damage before signing for the shipment.Damage: Must be reported within 15 days from delivery date...

New Brother Dr420 Copier Drum 12000 Page-Yield Black Consistent Print Operation Easy-Install List Price: $158.97 Sale Price: $104.73 You save: $54.24 (34%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description 100% safe & secure shopping; Superior customer service.

Product By Sharp Electronics - Copier Drum Cartridge For AL800/841 20 000 Page Yield Sale Price: $230.95   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description We at Sharp Electronics are committed to provide the consumer with the highest and best quality when it comes to products like this Copier Drum Cartridge, For AL800/841, 20,000 Page Yield . Drum cartridge is designed for use with Sharp AL800, 800L, 840 and 841...

Pitney Bowes 4854 - 4854 Drum, Black Sale Price: $224.00 See Reviews For This Product Description Regular replacement of crucial parts lends life to your machine. Prints accurate, crisp pages. Simple installation. Device Types: Laser Printer; OEM/Compatible: OEM; Page-Yield: N/A; Supply Type: Drum.

Brother DR350 Drum Unit List Price: $122.08 Sale Price: $70.00 You save: $52.08 (43%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description The Brother DR350 Drum Unit. For Use With: DCP-7020, IntelliFax-2820, IntelliFax-2910, IntelliFax-2920, HL-2040, HL-2070N, MFC-7220, MFC-7225N, MFC-7420, MFC-7820N

Maintenance Kit Type 3800A List Price: $211.16 Sale Price: $143.45 You save: $67.71 (32%)   Eligible for free shipping! Availability: Usually ships in 2-3 business days See Reviews For This Product Description The only answer for optimum precise performance of your Ricoh equipment - genuine Ricoh supplies. They are formulated specifically to work with Ricoh office machines. Genuine Ricoh supplies ensure outstanding copy clarity and machine reliability in even the most demanding environments...

Copier Drum Cleaning Blade Replacement for Canon Ir 2200 2800 3300 Sale Price: $8.20   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description Great replacement Drum Cleaning Blade for the old or broken one; Drum Cleaning Blade is a component accessory within the cartidge; Often a component such as the drum cleaning blade can become worn or damaged prior to the end of its toner supply...

New Innovera Al100dr Compatible Copier Drum Unit Black 18000 Page-Yield Economical Compatible List Price: $127.64 Sale Price: $84.08 You save: $43.56 (34%)   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description 100% safe & secure shopping; Superior customer service.

Product By Sharp Electronics - Copier Drum Cartridge 18000 Page Yield Sale Price: $237.06   Eligible for free shipping! Availability: Usually ships in 1-2 business days See Reviews For This Product Description We at Sharp Electronics are committed to provide the consumer with the highest and best quality when it comes to products like this Copier Drum Cartridge, 18000 Page Yield . Drum cartridge is designed for use with Sharp AL-1000, AL-1010, AL-1020, AL-1041,AL1200, AL-1215, AL1220, AL1250, AL-1340, AL-1451,AL-1551, AL-1530CS, AL-1540CS, AL-1551CS, AL-1631, AL-1641CS, AL-1642CS, AL-1651CS & AL-1661CS...