Canon C5045 ghost image

[blazebusiness]

Customer called with an issue of ghost image on copies (mostly the black). To resolve issue tried the following:

1. Verified that it was not an issue with feeding heavy stock without changing the paper settings from plain paper to heavy bond. ITB unit looks clean----no residual image. Black print has a raised almost braille feel to it.
2. Increased fixing temp in service mode to see if issue improved.
3. Fixing film unit was at 200% of life and making a little noise. Replaced film unit. Tested----problem still exists. Since last visit the ghost image even seems darker and customer had replaced toner before these issues.....so removed black toner cartridge and installed new genuine oem cartridge to see if a bad toner was the issue.....no change.
4. Installed a fuser unit from a working machine to see if the issue was in the fuser unit itself.....no change....still ghosting.

My next steps will be:
block the suspected black laser with the cleaning tool and make prints to verify colors do not ghost
replace Black drum and dv unit
replace Black laser
replace circuit boards


Any thoughts on this issue much appreciated.

[chinotech]

Re: Canon C5045 ghost image

I have experience with this type of problem. You have bad toner. Remove toner cartridge and either replace dv unit or run test pages until ghosting clears up. Then put in fresh toner. Drum may be OK. If color bleeds onto the edges, replace drum unit.

Sent from my HTC One M9 using Tapatalk

[Phil B.]

Re: Canon C5045 ghost image

Customer called with an issue of ghost image on copies (mostly the black). To resolve issue tried the following:

1. Verified that it was not an issue with feeding heavy stock without changing the paper settings from plain paper to heavy bond. ITB unit looks clean----no residual image. Black print has a raised almost braille feel to it.
2. Increased fixing temp in service mode to see if issue improved.
3. Fixing film unit was at 200% of life and making a little noise. Replaced film unit. Tested----problem still exists. Since last visit the ghost image even seems darker and customer had replaced toner before these issues.....so removed black toner cartridge and installed new genuine oem cartridge to see if a bad toner was the issue.....no change.
4. Installed a fuser unit from a working machine to see if the issue was in the fuser unit itself.....no change....still ghosting.

My next steps will be:
block the suspected black laser with the cleaning tool and make prints to verify colors do not ghost
replace Black drum and dv unit
replace Black laser
replace circuit boards
Any thoughts on this issue much appreciated.

go with drum / dev unit first... i've never seen a laser cause ghosting.... blurry / stretched print / voids maybe

[copier tech]

Re: Canon C5045 ghost image

Are you using compatible or OEM toner and/or drums?

[Brian8506]

Re: Canon C5045 ghost image

I've had that and had to vacuum hopper to get bad toner out, replace dv and put in fresh toner

[blazebusiness]

Re: Canon C5045 ghost image

I have experience with this type of problem. You have bad toner. Remove toner cartridge and either replace dv unit or run test pages until ghosting clears up. Then put in fresh toner. Drum may be OK. If color bleeds onto the edges, replace drum unit.

Sent from my HTC One M9 using Tapatalk

Thanks very much for taking the time to reply. After installing a new oem ctg. and made a ton of prints to deplete old toner in hopper and dv unit ------- with no improvement. So now I am almost certain that bad toner is not causing this. I suspected it initially but now it seems more likely it is an issue with the K dv unit or K drum unit. Appreciate your input though.

[blazebusiness]

Re: Canon C5045 ghost image

Are you using compatible or OEM toner and/or drums?

Customer exclusively uses OEM drums & toner only.

[blazebusiness]

Re: Canon C5045 ghost image

go with drum / dev unit first... i've never seen a laser cause ghosting.... blurry / stretched print / voids maybe

Agreed. Will try K drum & dv unit and see what happens. When I logged on to the Canon knowlegebase there were some techpubs pointing to issues like this being resolved by laser or main controller or dc controller but I feel those are more of a long shot. I'll let you know if the drum unit and dv unit makes a difference. Thanks.

[chinotech]

Re: Canon C5045 ghost image

Thanks very much for taking the time to reply. After installing a new oem ctg. and made a ton of prints to deplete old toner in hopper and dv unit ------- with no improvement. So now I am almost certain that bad toner is not causing this. I suspected it initially but now it seems more likely it is an issue with the K dv unit or K drum unit. Appreciate your input though.

By installing the new toner before depleting the old, you may have a mix of good and bad in the dv unit. To save time, just replace the dv unit. It's also possible that the end user may have more than one bad toner. Even OEM toner can be defective or go bad. Just trying to be helpful.

Sent from my HTC One M9 using Tapatalk

[blazebusiness]

Re: Canon C5045 ghost image

By installing the new toner before depleting the old, you may have a mix of good and bad in the dv unit. To save time, just replace the dv unit. It's also possible that the end user may have more than one bad toner. Even OEM toner can be defective or go bad. Just trying to be helpful.

Sent from my HTC One M9 using Tapatalk

I have seen bad toners but I have never have seen 2 bad oem toners before, but anythings possible I guess. Thanks.....appreciate your time.

[q555]

Re: Canon C5045 ghost image

Customer called with an issue of ghost image on copies (mostly the black). To resolve issue tried the following:

1. Verified that it was not an issue with feeding heavy stock without changing the paper settings from plain paper to heavy bond. ITB unit looks clean----no residual image. Black print has a raised almost braille feel to it.
2. Increased fixing temp in service mode to see if issue improved.
3. Fixing film unit was at 200% of life and making a little noise. Replaced film unit. Tested----problem still exists. Since last visit the ghost image even seems darker and customer had replaced toner before these issues.....so removed black toner cartridge and installed new genuine oem cartridge to see if a bad toner was the issue.....no change.
4. Installed a fuser unit from a working machine to see if the issue was in the fuser unit itself.....no change....still ghosting.

My next steps will be:
block the suspected black laser with the cleaning tool and make prints to verify colors do not ghost
replace Black drum and dv unit
replace Black laser
replace circuit boards


Any thoughts on this issue much appreciated.

hi blaze,

do you have sample prints of the ghost images?