Question about Ricoh Aficio CL3500N Laser Printer

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Can you clean the laser mirrors

My unit shows color regist. error. i have changed the transfer belt uint. a friend of mine said to clean the mirrors only on the laser unit

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  • Ricoh Master
  • 3,904 Answers

Yes... use an alcohol pad and it is difficult but make sure you have zero streaks on it. When these are originally placed it is in a dust free controlled clean room.

Posted on Apr 14, 2014

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6ya6ya
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Posted on Jan 02, 2017

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1 Answer

How do fix error Color registration could not performed


Possible remedies for weak images.
-Loose connection between transfer roller and high voltage supply unit.

-Dust in the laser beam path

-Transfer belt not contacting PCU.


Check the transfer unit.

Defective PCU. Replace the PCU.

Defective transfer roller. Repair the transfer roller.

Defective fusing unit. Replace the fusing unit.

Defective engine board. Replace the engine board.











Feb 02, 2016 | Ricoh Aficio SP C410DN Laser Printer

1 Answer

What's your question? my konica minolta c451e printing machine showed me an error code p21, what could that mean and it is not printing any image but black-green shade


P-21 - Color regist test pattern failure
• The number of points detected in the main scan direction is more or less than the specified value during main scan direction registration correction.
• The number of points detected in the sub scan direction is more or less than the specified value during sub scan direction registration correction.

P-21: Color regist test pattern failure
Relevant parts:
• Transfer belt unit
• PH unit
• Printer control board (PRCB)
Step/Action:
1/ Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty.
2/ Change the image transfer belt unit if the transfer belt is damaged.
3/ Change the PH unit.
4/ Change PRCB.

(See Service Manual, pages 599, 603):
http://www.imcopexamerica.com/service-books/Bizhub/Color/bizhubC451_C550_C650FieldSvc.pdf

See also here:
Konica Minolta Bizhub c451 Reparacin de Fotocopiadoras YoReparo
Thread Problemas na C451 7 21

May 31, 2015 | Konica Minolta Office Equipment & Supplies

1 Answer

8650 machine error 21


1 Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty.
2 Change the image transfer belt unit if the transfer belt is damaged.
3 Change the PH unit.
4 Change PRCB.
Hope fully not the last two expensive.

Jun 04, 2014 | Konica Minolta bizhub C250 All-In-One...

1 Answer

How so I clear error code SC 442 on Aficio SP C811DN?


This is a ITB contact motor error.
Check/clean/replace contact sensor.
Replace transfer belt contact motor.
Check harness and connectors to motor and sensor.
Check for mechanical binds.

May 19, 2014 | Ricoh Intermediate Transfer Belt Unit for...

1 Answer

What is error p-21 of konica minolta bizhub c250?


P-21: Color regist test pattern failure




1 Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty.
2 Change the image transfer belt unit if the transfer belt is damaged.
3 Change the PH unit.
4 Change PRCB.

run halftone prints from service mode to isolate which color is having an issue.

check all image units


Jan 22, 2013 | Konica Minolta bizhub C250 All-In-One...

1 Answer

P-21 error of c250


P-21: Color regist test pattern failure




1 Wipe clean the surface of the transfer belt with a soft cloth, if it is dirty.
2 Change the image transfer belt unit if the transfer belt is damaged.
3 Change the PH unit.
4 Change PRCB.

run halftone prints from service mode to isolate which color is having an issue.

check all image units

Jan 22, 2013 | Konica Minolta bizhub C250 All-In-One...

1 Answer

Samsung printer, transfer belt error message


Check on you drim uint the gears damaged.

Aug 06, 2008 | Samsung CLP-500 Laser Printer

2 Answers

Ricoh Aficio 3006 error sc452


The SC 326 is -- 2nd laser synchronization error. Meaning, the 2nd laser synchronization signal cannot be detected by the main scan synchronization detector board even if the laser diodes are activated.

Basically your polygonal mirror motor unit is bad and needs to be replaced. You can replace the whole laser unit but that is expensive. When you replace the PMM unit, do so in a still air area -- as to not get anything in the unit. When you get the PMM unit -- contact me and I can walk you through the steps to replace.


The SC 452 is --- Transfer Belt Mark Detection Error. Once you fix the SC 326 error this one should be fixed also.

Jul 17, 2008 | Ricoh Aficio Colour 3006 Color Copier

8 Answers

Color Print Quality


In my experience, the fuser has always been the cause of the lines.

Jul 09, 2008 | Ricoh CL3000E Laser Printer

1 Answer

Ricoh color aficio 6513


The following is taken from the service manual I hope it helps Thanks J


SC457 Position error for
the image
transfer belt’s
cleaning unit
- Timing & Condition
• When the belt cleaning
section touches the
image transfer belt, but
the belt cleaning sensor
signal remains LOW.
• When the belt cleaning
section releases from the
image transfer belt, but
the belt cleaning sensor
remains HIGH.
• Dirty Sensor
• Defective sensor
• Defective belt cleaning
shift clutch
• Defective drum
peripheral component
motor
• Defective I/O control
board
• Defective main control
board
1. Pull out and re-insert the image transfer
belt unit.
2. Clean the image transfer belt cleaning
H.P. sensor.
3. Replace the sensor. (Input Check: 5-803-
012)
4. Replace the belt cleaning shift clutch.
(Output Check: SP5-804-036)
5. Replace the drum peripheral component
motor.
6. Replace the I/O control board.
7. Replace the main control board.
[Signal Check]
• H.P.: CN219-B2 or TP108 on the I/O
control board

Jan 06, 2008 | Ricoh Aficio 2022 All-In-One Laser Printer

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