Canon Toner Cartridges vs. Katun â€کCompatible’ Toner 8

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  • BUYERS LAB

    BUYERS LAB Custom Test Report

    BuyersLab.com © 2011 Buyers Laboratory Inc. This report is the sole property of BLI. Duplication in any manner is illegal and strictly forbidden without written permission from BLI. Violators will be prosecuted. To purchase reprints of any BLI publication contact Buyers Laboratory Inc. at info@buyerslab.com.This report has been reproduced with the written permission of Buyers Laboratory Inc. Any duplication of this report without the written permission of Buyers Laboratory is unlawful and violators will be prosecuted. ©2011 Buyers Laboratory Inc. To purchase reprints, contact BLI at (201) 488-0404 (x17) or at info@buyerslab.com. • UK091101

    Test Objective

    Buyers Laboratory Inc. (BLI) conducted a comparative test of new Canon toner cartridges against ‘compatible’ toner cartridges manufactured by Katun for use on the Canon iR C2380. All cartridges were tested for yield and the devices were tested for image quality and reliability using the respec- tive cartridges. Each cartridge brand was tested on two Canon iR C2380 devices, with each of the devices run to 200,000 impressions.

    Four Canon iR C2380s installed at BLI’s Wokingham test facility

    COMPARATIVE PERFORMANCE TESTING

    Canon Toner Cartridges vs. Katun ‘Compatible’ Toner Cartridges

    SEPTEMBER 2011

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    Canon vs. Katun Toner Cartridges Custom Test Report

    BuyersLab.com This report has been reproduced with the written permission of Buyers Laboratory Inc. Any duplication of this report without the written permission of Buyers Laboratory is unlawful and violators will be prosecuted. ©2011 Buyers Laboratory Inc. To purchase reprints, contact BLI at (201) 488-0404 (x17) or at info@buyerslab.com. • UK091101

    Executive Summary

    In BLI’s lab evaluation, the two Canon iR C2380s running Canon toner did not experience any reliability issues over the course of their 200,000-page tests, with all drums exceeding life and im- age quality remaining stable, with only marginal drop-off in colour gamut size and optical density as drums reached and exceeded end of life. Each Canon model required only one service call, which was simply to replace drums that had exceeded their rated yield. Toner yields were consis- tent with the pattern of slight drop-off as imaging drums approached and exceeded life. Neither device required a cleanup when the second set of imaging drums were installed at circa 110,000 impressions, with only minor leakage of yellow toner at the front of the unit.

    In contrast, the two devices running Katun-compatible toner experienced many problems over the course of the test, requiring a total of 14 service calls between them. From the start of the test, both of the devices running Katun toner had an image quality issue—double imaging on docu- ments with heavy coverage close to the leading edge of the page. For both, this issue occurred over the first 25% to 30% of the test period, reappearing again on one of the two devices in the final 25% of the test run. On each occasion the issue was related to a failure of the drums: the repeat image matched the diameter of the imaging drum and was eliminated upon replacement of the drum.

    A major issue related to toner leakage and contamination of the imaging station with the Katun toner (especially with cyan and, to a lesser extent, magenta) led to multiple service calls to clean heavily contaminated laser windows that were causing sub-standard image quality. It is also likely that the toner leakage issue caused premature failure of the fuser unit on device D at 180,000 im- pressions. It also contributed to poor toner yield. Indeed, the two devices running the Canon OEM toner cartridges achieved yields that were on average 30% higher for the three color toners and 14.6% higher for black. The difference in the ratio between toner used and waste toner generated was dramatic, with the Katun toner generating 66% more waste toner than the Canon toner. BLI suspects that the toner spillage issues are in part due to a higher quantity of toner being drawn on to the drum during the imaging process from the Katun toner cartridges than from the Canon cartridges. In turn, more toner needs to be cleared from the drum after transfer to the ITB, putting excess strain on the waste toner transport system within the drum unit. Similarly, this could also be the cause of the intermittent double-imaging issue with documents with heavy coverage near the leading edge--the quantity of toner deposited at the front edge of the drum during the imag- ing process may be such that the cleaning blade cannot successfully clear it prior to the second rotation of the drum.

    In summary, the Canon toner outperformed the Katun toner in every aspect of BLI’s test, with superior yields, better colour stability, superior device reliability and greatly reduced servicing demands.

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    Canon vs. Katun Toner Cartridges Custom Test Report

    BuyersLab.com This report has been reproduced with the written permission of Buyers Laboratory Inc. Any duplication of this report without the written permission of Buyers Laboratory is unlawful and violators will be prosecuted. ©2011 Buyers Laboratory Inc. To purchase reprints, contact BLI at (201) 488-0404 (x17) or at info@buyerslab.com. • UK091101

    RELIABILITY – SERVICE RECORDS

    Device A (using Canon OEM-branded toner)

    SERVICE RECORD

    Click Count Event Action

    113,861 High frequency of light spots observed and fine lines appearing on solids in cyan and magenta

    colour regions.

    New CMYK drums installed to replace drums that had greatly exceeded their rated lives (rated drum yield is

    77,000 for black, 55,000 for CMY). A full auto-gradation procedure was performed. No cleaning of the drum as-

    sembly or toner transport path was required.

    Notes: BLI observed occasional light spots in solid red fills from 72,198 impressions and solid blue fills from 98,778 impressions, but these were very intermittent and were not determined to be at a level where a typical office user would classify the output as substan- dard. The frequency started to increase at 108,109 pages and was classified as substandard at 113,861 impressions.

    Device B (using Canon OEM branded toner)

    SERVICE RECORD

    Click Count Event Action

    105,985 High frequency of light spots observed and fine lines appearing on solids in cyan and

    magenta colour regions.

    New CMYK drums installed to replace drums that had greatly exceeded their rated lives. A full auto-gradation procedure was performed. No cleaning of the drum as-

    sembly or toner transport path was required.

    Notes: BLI observed lines occasionally from 101,751impressions, but these were very intermittent and were not determined to be at a level where a typical office user would classify the output as substandard. The frequency started to increase and was classified as substandard at 105,985 impressions.

    Device C (using Katun-branded toner)

    SERVICE RECORD

    Click Count Event Action

    5,036 Double-imaging of CMYK solids near leading edge, 9.5cm to the left of the original image New CMYK drums installed. A full auto-gradation proce-

    dure was performed. No cleaning of the drum assembly or toner transport path was required.

    7,548 Double-imaging of CMYK solids near leading edge, 9.5cm to the left of the original image New CMYK drums installed A full auto-gradation procedure was performed. No cleaning of the drum assembly or toner

    transport path was required.

    35,130 Light banding in areas containing cyan

    Cyan laser window in drum assembly heavily contami- nated with toner. Engineer cleaned it thoroughly, but lines persisted so he replaced the cyan drum, which was only at 50% of advertised life expectancy. Full auto-gradation procedure was performed and the device drum assembly

    and toner transport area were thoroughly cleaned and vacuumed due to heavy contamination.

    77,272 Fading of cyan-based colours from top to

    bottom and variation in colour reproduction, especially greens

    Cyan laser window in drum assembly heavily con- taminated again with toner. Engineer cleaned the laser

    window shutter and surrounding area thoroughly but lines persisted, so he replaced the cyan drum, which was only at 76% of advertised life expectancy. Full auto-gradation

    procedure performed and device drum assembly and toner transport area thoroughly cleaned and vacuumed due to

    heavy contamination.

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    Canon vs. Katun Toner Cartridges Custom Test Report

    BuyersLab.com This report has been reproduced with the written permission of Buyers Laboratory Inc. Any duplication of this report without the written permission of Buyers Laboratory is unlawful and violators will be prosecuted. ©2011 Buyers Laboratory Inc. To purchase reprints, contact BLI at (201) 488-0404 (x17) or at info@buyerslab.com. • UK091101

    82,754 Fading of cyan-based colours from top to bottom

    Cyan laser window again heavily contaminated. Engineer cleaned it thoroughly. The drum was not replaced because

    the drum surface was determined to be still in good condition. Device drum assembly and toner transport area thoroughly cleaned and vacuumed due to heavy

    contamination.

    115,048 Fading of cyan-based colours and lines ap-pearing at bottom of output.

    Cyan laser window in drum assembly hea