Question about Canon PC-920 Black and White Copier

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Canon pc 890

Poor transfer, full image on pcu.unable to diagnose any thoughts

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I THINK THE TRANSFER OR CHARGE CORONA WIRES ARE DIRTY or need to be replaced

Posted on Jan 31, 2008

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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

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

Fuctional problems sc402. ricoh aficio 150


SC402: Transfer roller leak error 2
A transfer roller current leak signal is detected.
The current feedback signal for the transfer roller is not detected.

- Possible causes -
  • · High voltage supply board defective
  • · Poor connection of the PCU
  • · Transfer/separation unit set incorrectly
  • · Transfer roller damaged

Jan 26, 2011 | Ricoh Aficio 150 Copier

2 Answers

Incomplete copying/printing. Full page not copying, just 3/4 of the page, whether b/w or colour. when photocopying or printing only a thrid of the text or image is printed.


Check wether the transfer belt cleaning unit inside the photoconductor unit have wrong cleaning cycle due to the defective cleaning clutch.

Oct 02, 2009 | Ricoh Aficio 1232C Color Copier

1 Answer

Sc402


Transfer roller open error.
Transfer connector cable defective
Transfer connector defective
Poor PCU connection.
High voltage supply board defective.

Aug 05, 2009 | Ricoh Aficio 180 Laser Printer

1 Answer

PRINTED PAGES ARE BLANK AFTER REPLACING PHOTOCONDUCTOR


The machine should automatically recognize the new PCU. Blank copies would lead me to think you have further problems, charge corona? transfer issues? If you try to make a copy and open the front door real fast when the paper should be at the transfer unit, is there an toner image showing on the drum? If yes, then you have charge but not getting transfer. This is a hard problem to troubleshoot without seeing machine. Anyway good luck, please rate this. Thanks ..... Wait... just had a thought. On the shaft, on the inside of the rear frame, that drives the drum there is a coupling that is spring loaded. Sometimes the shaft gets gunked up and coupling does not pop out not connecting to the PCU, which could cause blank copies and will still say replace pcu. You could add a couple of drops of oil to that shaft to loosen it up if that's the case.

Jun 30, 2009 | Savin Printers & Copiers

7 Answers

SC392


Hi,
SC 392 Possible causes -
· Someone forgot to remove the toner seal of the PCU
· ID sensor defective
· TD sensor abnormal
· Drum does not turn
· Development roller does not turn
· Poor connection of the PCU
Regards,

Jun 11, 2009 | Ricoh Aficio 2022 All-In-One Laser Printer

1 Answer

Ghost image on Epson Acculaser C4000


Ghosting can be caused by several components: 2nd BTR transfer roller, Photoconductor Unit (PCU) or the Fuser unit. The most likely is the PCU contacts being dirty, caused by toner getting between them. Open the front of the printer (cover B) and lift out the photoconductor. Clean all of the metal contacts down the sides of the PCU with a cloth and wipe out any loose toner from inside the printer and give the contacts inside the printer on the R/H side a good clean. Replace the PCU and close the front cover.
Hopefully all will now be well, if not open cover A and clean the transfer roller on the inside of the cover. If problem persists you will need to get a Tech out to look further as without seeing the printer it is pretty hard to diagnose.
Good luck.

May 20, 2009 | Epson AcuLaser C1900 Printer

2 Answers

My Rico Aficio 200


Please open the front door and turn the blue lever in the middle,
remove the Transfer and Separation unit and check if the bushings of the transfer roller are damaged.
If OK, please give some oil on the shaft/bushings of the transfer roller. This unit may be replaced as a whole unit.
If SC401 re-occurs, please check the Photoconductor unit (drum).

Aug 27, 2008 | Ricoh Aficio 180 Laser Printer

2 Answers

Ricoh Aficio cl2000


Most of the time when I find this happening on a printer, not just Ricoh's it turns out to be the PCU (photo conductor unit). The color PCU is one unit and the black is a seperate unit. Hope this helps.

Dec 17, 2007 | Ricoh Aficio CL2000 Laser Printer

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