mp c4503 white dots

[Marwanalhajbi]

greetings for everyone
i have issue a white spots on black as shown,i have changed the whole black pcdu no results,

any suggestion please

https://we.tl/t-eJm8wS6C4w

[copier tech]

Re: mp c4503 white dots

greetings for everyone
i have issue a white spots on black as shown,i have changed the whole black pcdu no results,

any suggestion please

https://we.tl/t-eJm8wS6C4w

What is the life of the PTR & primary transfer unit?

What does say cyan solid look like?

I'd start by replacing the PTR.

[8T2]

Re: mp c4503 white dots

I would try a different Paper Transfer Roller (Transfer/Seperation Roller)

Sent from my WAS-LX1 using Tapatalk

[8T2]

Re: mp c4503 white dots

What is the life of the PTR & primary transfer unit?

What does say cyan solid look like?

I'd start by replacing the PTR.

Haha dammit beat me to it by seconds

Sent from my WAS-LX1 using Tapatalk

[copier tech]

Re: mp c4503 white dots

Haha dammit beat me to it by seconds

Sent from my WAS-LX1 using Tapatalk

You snooze you loose!

[FrohnB]

Re: mp c4503 white dots

BLACK TRANSFER ROLLER IN ITB UNIT.

Have had this many times on this series and the Cxx02 series, and all the way back to the C4000/C5000 series.

EDIT: I don't think this is a part that is available to order.....we've always had to either swap the ITB unit, or pull the black transfer roller from a unit in a graveyard machine.

[tonerhead]

Re: mp c4503 white dots

Seen that before on ITB. As mentioned it is the black primary charge on itb. Part number is in the partsfinder for the machine. Don't know if proper to list part number on forum, but I did check in partsfinder and it was listed.

[anothertech]

Re: mp c4503 white dots

I don't see any problem posting a part number.

This looks like it,

D1496336
(x4)
TRANSFER ROLLE
R:ASS'Y

[Marwanalhajbi]

Re: mp c4503 white dots

BLACK TRANSFER ROLLER IN ITB UNIT.

Have had this many times on this series and the Cxx02 series, and all the way back to the C4000/C5000 series.

EDIT: I don't think this is a part that is available to order.....we've always had to either swap the ITB unit, or pull the black transfer roller from a unit in a graveyard machine.

thank you so much

[Blizzoo]

Re: mp c4503 white dots

As mentioned the 1st transfer roller in ITB unit is likely causing this. Not sure if possible but if you swap the 1st transfer roller let's say from K with Y the fault should move with the roller and you may get a good print quality (the spots may be less noticeable on Y side) until you got a new ITB unit replaced or a good 1st transfer roller.

[slimslob]

Re: mp c4503 white dots

You could also try cleaning the roller.

[mga]

Re: mp c4503 white dots

greetings for everyone
i have issue a white spots on black as shown,i have changed the whole black pcdu no results,

any suggestion please

https://we.tl/t-eJm8wS6C4w

Would be good to see some more samples of other colour and some normal prints I've had something similar when a engineer fitted a 04 ptr in a 03

[MIGUELMARCHENA]

Re: mp c4503 white dots

In the ricoh this problem has not happened to me, but in the panasonic and Toshiba yes.the problem was in the spent developer or had soil from the environment.as it was very expensive, it was removed, sneaked in with a half-evening, toner was added on a regular basis, and the problem was solved for a long time.Sometimes it was due to the roller in the development unit, it needed to be cleaned very well.

[tonerhead]

Re: mp c4503 white dots

Since there is no problem listing parts, the current number in parts finder is D0BQ6060. That is D,zero,B,Q,6,zero,6,zero. It probably updates the previous mentioned number. I also thought of switching the yellow with the black as was previously mentioned. Yellow is always nice and solid on these even with crappy drums and developers.