MP C5503 No Cyan

[digicor]

heres a good one, no cyan in the copy or print, yet i have good transfer in the ITB , all springs in place, checked cyan ID all good , oh and No Coding, cant do color image alignment, in service mode or in Main mode
Drum unit is intact , laser lens is clear... Polygon Motor maybe? but wouldnt i get a code?
see pic need help thanks
20220629140527952_0001.jpg

[mikadonovan]

Re: MP C5503 No Cyan

Is the cover on the rear of the pcdu? And is is plugged in on the front? And are the gears present on the dev unit?

[digicor]

Re: MP C5503 No Cyan

Is the cover on the rear of the pcdu?yes
And is is plugged in on the front?yes

And are the gears present on the dev unit?yes
im running over another PCU to see if its the charge roller no turning possibly.... any other ideas?

[vga_man]

Re: MP C5503 No Cyan

1. Check rotation of drum and development unit motor from the back side.
2. It may because of (transfer belt charge).

Sorry for my bad English

[luca72]

Re: MP C5503 No Cyan

heres a good one, no cyan in the copy or print, yet i have good transfer in the ITB , all springs in place, checked cyan ID all good , oh and No Coding, cant do color image alignment, in service mode or in Main mode
Drum unit is intact , laser lens is clear... Polygon Motor maybe? but wouldnt i get a code?
see pic need help thanks
[ATTACH=CONFIG]53829[/ATTACH]

you have a developer unit with the broken clochea tree, or worn gear...anyway a developer unit problem

for every doubt, try to swap pcu c, with y

[slimslob]

Re: MP C5503 No Cyan

Is the cover on the rear of the pcdu?yes
And is is plugged in on the front?yes

And are the gears present on the dev unit?yes
im running over another PCU to see if its the charge roller no turning possibly.... any other ideas?

If the connector between the DVU and the PCU was not plugged in you would get a code. Voice of experience.

Cyan transfer roller in the ITB unit could be sticking.

[anothertech]

Re: MP C5503 No Cyan

you have a developer unit with the broken clochea tree, or worm gear...anyway a developer unit problem

for every doubt, try to swap pcu c, with y

I'd go this route. Developer gears strip, no codes usually.

[FrohnB]

Re: MP C5503 No Cyan

It could just be that the developer is spent in that unit. Have you split the cyan drum and dev. unit apart to see if the mag roller has developer on it?
I've run into this a couple times on this series, and it was always spent developer. Never a code (which is strange). Also went hand in hand with customer using third party toner.
Replace cyan dev. unit

[luca72]

Re: MP C5503 No Cyan

It could just be that the developer is spent in that unit. Have you split the cyan drum and dev. unit apart to see if the mag roller has developer on it?
I've run into this a couple times on this series, and it was always spent developer. Never a code (which is strange). Also went hand in hand with customer using third party toner.
Replace cyan dev. unit

I think that Is a Logic of operation , me explain better, since ricoh knows that the developer units break in that way, they have done so via standard firmware, to avoid that the machine seeing the id values of a certain color, under a certain threshold, and certain combination of toner patch sensor, too far respect at the last auto calibration routine, for not think that Is a low toner ratio condiction, She stop loading toner, for avoid to everything smashed ... this is my theory on the fact that it does not give errors

[MBZ6301]

Re: MP C5503 No Cyan

How full of cyan is the waste toner bottle? Even if the mag roller is covered I'd check the chute on the rear of the unit and see if it looks empty. Chuck a dev unit in it I reckon.

[Gift]

Re: MP C5503 No Cyan

Is the cyan image visible on the drum surface after stopping a print process by opening a door?

[digicor]

Re: MP C5503 No Cyan

they are out till tuesday, so i cant get back there until then, i will post up what i find out

[Polo-022]

Re: MP C5503 No Cyan

I believe there is a "No toner Cyan" condition into machine's logic,
when you try to fix toner density in Maintenance mode.

[slimslob]

Re: MP C5503 No Cyan

Greetings, this failure is very common here in Mexico, but with a lack of toner.replace the laser assembly, or if you can replace the cyan laser emitting led diode, the polygonal mirror reflects black and three colors at the same time, also suspect the pcud charging high voltage source and the primary cyan color transfer , it is possible failure of some card or leakage of voltage.
luck.

you're thinking about the wrong model. Unlike the the C5502, the C5503 only has 2 laser diodes. The polygon direct each laser beams to 2 drums.