[Misc] CLC 5151 Shift of colors

[tukan]

Shift of color,
regardless of their cassette,
no matter what the paper.

Is there a solution?

Thanks in advance

[mrfixit51]

Hard to believe that the arrow indicates direction of travel of paper. Is this blue print image in your example a form they are using? I would love to see a test print 31, which would show alignment of the 4 laser's. If the paper travel indication is wrong, I would suspect an ITB cleaning issue...

[tukan]

Test Print #31

Test Print #31

[mrfixit51]

31 looks fine,,, I am still wondering if the blue is printed on the advance box, or is the blue print from a pre-printed form placed into the copier...

[SCREWTAPE]

Is this off the glass or is it a print job?

Looks like a laser issue.

Black.

The double imaging fault, reflection.

This is not a registration issue. It seems to be isolated

I would check the laser values for black.

then check the laser itself.

[charm5496]

Have you cleared DC CON, Recammed the lasers, swapped the lasers?

With the direction your double image is I am leaning towards DC-CON or laser assembly.

[tukan]

Strip in print only.
The black laser unit was replaced and the data entered.
DC controller has been cleared and partly filled with new software.
The stripes occur only sporadically and only in print.
When copy is all ok.

Excuse my bad english.

[SCREWTAPE]

Strip?

What strip?

Are you still talking about the same problem?

[teckat]

that is a Laser Issue / where is your service manual ??

[SCREWTAPE]

that is a Laser Issue / where is your service manual ??

It sure does look like it right!

[tukan]

Strip?

What strip?

Are you still talking about the same problem?

Excuse me, I mean shift.

[tukan]

that is a Laser Issue / where is your service manual ??

The black laser unit was replaced.The problem persists.

[teckat]

The black laser unit was replaced.The problem persists.

I believe this model is similar to the iR 5185>
When replacing the laser unit, enter the values indicated in the label attached
on the upper surface of the new laser unit

Controlling the Laser Activation Timing.
laser beams are turned on/off by the combination of control signals from the DC controller PCB 2

following factors can displace images of individual colors:
- displacement of the photosensitive drum caused by replacement of the drum unit/toner container

- displacement in sub scanning direction
- displacement of laser path caused by replacement of laser unit

- displacement/angle in main scanning direction
- displacement in laser path length caused by changes in temperature inside machine

- variation in magnification

have u swapped the Laser in question to see if issue follows it / have u made single color grid printouts ??

[tukan]

I believe this model is similar to the iR 5185>
When replacing the laser unit, enter the values indicated in the label attached
on the upper surface of the new laser unit

Controlling the Laser Activation Timing.
laser beams are turned on/off by the combination of control signals from the DC controller PCB 2

following factors can displace images of individual colors:
- displacement of the photosensitive drum caused by replacement of the drum unit/toner container

- displacement in sub scanning direction
- displacement of laser path caused by replacement of laser unit

- displacement/angle in main scanning direction
- displacement in laser path length caused by changes in temperature inside machine

- variation in magnification

have u swapped the Laser in question to see if issue follows it / have u made single color grid printouts ??

I will work off on Monday the list. DC Conroller and drum kit, I will replace it.

Thanks a lot.

[SCREWTAPE]

I will work off on Monday the list. DC Controller and drum kit, I will replace it.

Thanks a lot.

I experienced this also. I was not aware that such a procedure was needed.

Laser maker identification
[1] COPIER > ADJUST > LASER > LA-MK-Y/M/C/K
Laser magnification
[2] COPIER > ADJUST > LASER > LDADJ1-Y/M/C/K
[3] COPIER > ADJUST > LASER > LDADJ2-Y/M/C/K
[4] COPIER > ADJUST > LASER > LDADJ3-Y/M/C/K
Laser phase difference
[5] COPIER > ADJUST > LASER > LDADJ4-Y/M/C/K
[6] COPIER > ADJUST > LASER > LDADJ4-Y/M/C/K
[7] COPIER > ADJUST > LASER > LDADJ4-Y/M/C/K