what "pre transfer " uses for ?

[vins]

my ir6020 is not equipped with this part.. what the effect to my machine if this part not installed ? thank you

pre.jpg

[teckat]

Re: what "pre transfer " uses for ?

my ir6020 is not equipped with this part.. what the effect to my machine if this part not installed ? thank you

[ATTACH=CONFIG]26824[/ATTACH]

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Can cause Light Prints (including in solid black area) (or overall )


AC constant voltage control: fuzzy by environment sensor
DC constant current control: on/off control only

[Tricky]

Re: what "pre transfer " uses for ?

I was told on a Toshiba training course that pre transfer removes any static charges from the paper prior to the copy process.

[teckat]

Re: what "pre transfer " uses for ?

pre-transfer charging control system:
1. controlling the constant current level of the DC bias
2. controlling the fixed voltage level of the AC bias
3. controlling the output to suit the environment (fuzzy control)/The pre-transfer charging current is optimized to suit the environment (i.e., reading of the environment sensor):


JUST PURCHASE ONE

[Canuck]

Re: what "pre transfer " uses for ?

Simply speaking...the pre-transfer loosens up the toner "latent" image on the drum before it is transferred to the paper by the transfer corona/ETB assembly. The AC component of it equalizes the charge of the image before transfer, just like separation AC removes charge on paper before fusing

[blackcat4866]

Re: what "pre transfer " uses for ?

From a practical point of view, the blocks probably shorted out, and the tech didn't have the part on-hand. So he removed the shorted unit, and left it that way. I can't explain why he would have left it that way. =^..^=

[ZOOTECH]

Re: what "pre transfer " uses for ?

From a practical point of view, the blocks probably shorted out, and the tech didn't have the part on-hand. So he removed the shorted unit, and left it that way. I can't explain why he would have left it that way. =^..^=

His name was probably 'Bob'.

[vins]

Re: what "pre transfer " uses for ?

thankyou for your replies. and i want to ask, why my machine only gives about 15,000 sheets (for 1 kilogram toner) yields (almost only text ? what settings that i must check ?

[teckat]

Re: what "pre transfer " uses for ?

thankyou for your replies. and i want to ask, why my machine only gives about 15,000 sheets (for 1 kilogram toner) yields (almost only text ? what settings that i must check ?

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Canon standard for testing & posting toner usage\coverage yield volume is _
5%>6% text coverage on letter size.

[ernesto]

Re: what "pre transfer " uses for ?

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Can cause Light Prints (including in solid black area) (or overall )


AC constant voltage control: fuzzy by environment sensor
DC constant current control: on/off control only

Hi,

Do you know the best way to clean the wire of the pretansfer unit ? it can be cleanned with alcohol ?

All the best

[vins]

Re: what "pre transfer " uses for ?

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Canon standard for testing & posting toner usage\coverage yield volume is _
5%>6% text coverage on letter size.

i compare with another machine (iR5070) 5070 can make 25,000 copies. either 6020 and 5070 machine almost i use for copying text

[teckat]

Re: what "pre transfer " uses for ?

i compare with another machine (iR5070) 5070 can make 25,000 copies. either 6020 and 5070 machine almost i use for copying text

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Estimated average values in the field, based on data from supplier.
Data is subject to change depending upon many factors including, without limitation, monthly copy volume, environment, type of image printed and customer handling of the equipment.

imageRUNNER 5070
Estimated Toner Yield: 45,000 Images (at 6% Letter Coverage)
Canon OEM>GPR-17 Black Toner 0279B003AA--(Dry Volume: 2,000 g)


imageRUNNER 5020/6020
Estimated Toner Yield:: 33,000 Images (at 6% Letter Coverage)
Canon OEM>GPR-4 Black Toner 4234A003AA--(Dry Volume: 1,650g)

Even if box has Canon OEM > no guarantee it is ( counterfeit products & packaging are worldwide )

[vins]

Re: what "pre transfer " uses for ?

---------------------------------------------
Estimated average values in the field, based on data from supplier.
Data is subject to change depending upon many factors including, without limitation, monthly copy volume, environment, type of image printed and customer handling of the equipment.

imageRUNNER 5070
Estimated Toner Yield: 45,000 Images (at 6% Letter Coverage)
Canon OEM>GPR-17 Black Toner 0279B003AA--(Dry Volume: 2,000 g)


imageRUNNER 5020/6020
Estimated Toner Yield:: 33,000 Images (at 6% Letter Coverage)
Canon OEM>GPR-4 Black Toner 4234A003AA--(Dry Volume: 1,650g)

Even if box has Canon OEM > no guarantee it is ( counterfeit products & packaging are worldwide )

regarding that data .. 1000 g dry volume of toner >> 5070 = 22,500 images, and 6020 = 20,000 images.

[teckat]

Re: what "pre transfer " uses for ?

regarding that data .. 1000 g dry volume of toner >> 5070 = 22,500 images, and 6020 = 20,000 images.

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means nothing > it's just called ESTIMATE > take it with a "Grain of Salt"=to view something with skepticism, or to not take it literally.

[nmfaxman]

Re: what "pre transfer " uses for ?

5% fill is the equivalent to one paragraph double spaced.

I tell customers to expect have the yield or more if graphics are in document.