Develop ineo+ 458 color issue error c-2251

[christian8220]

I recently bought a Develop ineo+ 458 copy machine. I was aware that it had some trouble with colorprint. I was told that the issued with colorprint came after they moved the printer to a new office. I now got the printer home and tried to test the printer. When I print a demopage, it comes out in only black and white. To isolate the problem, I did a halftone and gradation in the servicemenu. As seen in the attached photo, the test has some issues. When I selected Gradation, it only gave me the first two pages and then showed the error message C-2551. Maybe it’s related to the general issue with colorprint.
When printing black and white, there is also a stripe on the top of the page (Black and White copy). My question is: Does the three-color printing have something in common as black and white seem to work fine? What could I try to do to fix the issue or narrow it down?
Additional information:
Page counter: 235.751
All consumables are above 50 percent. So all parts should be good to go.

[Synthohol]

your trans belt blade is not cleaning properly in the area of the image sensor test stripes and is smearing and cannot get a good reading and codes out.
would you like the service manual?

[Ziggy]

As far as demo page coming out in black and white there is a setting in user mode to make it in color. Its been a while since I have had to change it but I believe its under Utility>User Setting>Printer Setting> and set PCL and PS to color under select color

[tsbservice]

As far as demo page coming out in black and white there is a setting in user mode to make it in color. Its been a while since I have had to change it but I believe its under Utility>User Setting>Printer Setting> and set PCL and PS to color under select color

True that but it's meaningless in relation with real problems. I would like to see voltages and TCRs(especially cyan). I had once one like this and it was real PITA.

[Synthohol]

C2551: Abnormally low toner density detected cyan TCR sensor

c2251 in the title is that a typo? its not in my manual.

honestly with a used machine and not knowing if they just popped new chips in old dv units id replace all color dvs t/belt and drums. the gradation and halftones you posted look like crap. even at its worst it should print the gradation patterns better with more definition to the gradients.
slide the shutter on the toner hopper for each color, see if the cyan hopper is empty.

[Oystercopy]

I think the Xfer Belt is at fault for the stripe issue. But this could also be bad/generic toner. I had one a week ago that required all 4 drums and belt/roller before it was all over, due to bad toner. Consumables were also at only 30% used. The C-2551 could just be the Cyan unit quit first, after the bad toner got to it?
OC

[SadieRivera]

How is everything now?

[christian8220]

Thank you for all the replies. Sorry for getting back late. The printer is currently placed at my friend so I’m not that often by. I think I found the problem as described with the stripe on the black and white print. The blade on the image transfer belt was full of toner that wasn’t coming out. So, I cleaned the blade and the thing that is taking the toner to the waste toner box carefully and put it back. The strips now seem to be gone. So, one thing is solved
As requested, I took some pictures of the TRC and some pictures of the consumables. Hope this will give a better understanding of the problem.

[christian8220]

When I do the half tone test. The black seems to be alright. The three colors have some issues. Especially CYAN. The is no Cyan color at all. So, it must be related to all the three colors. What do all the three colors have in common? Then there must be another issue with the Cyan as the error code also confirms.

[kingarthur]

The transfer belt is badly worn - so needs replacing. The colour voltages are all at 0%, I'd expect to see them up around the same as the K , at least 6%. If it was working before they moved office, and it's not now - 1st thing I'd suspect, it's been dropped, and the HV board has "popped out" or is damaged....

[christian8220]

The transfer belt is badly worn - so needs replacing. The colour voltages are all at 0%, I'd expect to see them up around the same as the K , at least 6%. If it was working before they moved office, and it's not now - 1st thing I'd suspect, it's been dropped, and the HV board has "popped out" or is damaged....

Alright, I guess I need a new image transfer belt then. Do you know if the Konica Minolta C454e uses the same parts or KM C308 does. Maybe I could just swap that part?

I found the HV board (see picture). Everything seems to be plugged in. I would guess that the 4 outputs white, blue, red and yellow is where I should be looking. Maybe I could test with a multimeter to check what amount of voltage is coming out. Do you know that the voltage should be? DC or AC
The board looks alright no caps are a popped or look bad

[kingarthur]

The transfer belts are different i'm afraid . - yes, those 4 cables are plugged in, but if you look below, there are "jumpers" - sets of 2 wires wires, marked C1-C4 and B1-B4, they have a spring behind them, and a plastic tag going through them - if these springs aren't making contact with the "jumpers" on the board - then you have no voltage going to the DV units/drums. it's very hard to see with the angle of the photo.

[Synthohol]

The colour voltages are all at 0%, I'd expect to see them up around the same as the K , at least 6%.

yeah thats not a good sign however as porked as that belt is it likely just cant calibrate itself properly.
/.02

[christian8220]

I see what you mean. I have compared C1 and B1 (K) to the others as K seems to work. There is something wrong with C2 (C). The spring is kind of bend (see pic C2).
When I look at B3 and B4 the plastic pin is almost flush with the board compared to the B1 (k). So maybe something is off there as well? (see picture B3-B4). It’s hard to get the correct angel. However, the plastic pin for B3 and B4 is both flush with the board.

Thanks for all the help so far. I love this forum

[kingarthur]

it looks like the plastic lug for C2 is broken - I'd remove and refit that board - there's normally 3 or 4 screws, make sure you put the correct screws back in the right place. on some machines there are a mixture of silver and black screws, there isn't a screw in the bottom left hand corner - that slots into place - make sure you put it back correctly. for the black "self tapping" screws, when you refit them - don't just put them in and tighten them, put them into their holes, push lightly with your screwdriver and turn them backwards, slowly, these should then just drop into their original hole - otherwise you end up making a "new hole" and the screws will be loose. Unplug any connectors before you remove any screws.