Question about Canon NP 7130 Black and White Copier

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Canon NP 7130 F copier Copies are dark in some areas and light in other areas. We no longer have a service agreement on this machine. I cleaned the feeding roller in the ADF, new toner in machine, cleaned glass, recalibrated the exposure dial but it is still printing light in some areas and dark in others. Thank you

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  • 168 Answers

Hello,

Enter in service mode and do an cartridge adjustment. Maybe the toner is not uniformly distributed in cartridge. Also you can search on internet for service manual, this may help you a lot.

All the best !

Posted on Dec 03, 2017

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5 Suggested Answers

Bleddyn Jones

  • 62 Answers

SOURCE: Canon NP 6030 dark copies

Have you cleaned the slit-glass located behind the drum? Its a thin piece of glass that is about the length of a drum assembly. Check that the drum voltages on the drum label have been correctly installed. Perform a AVPC in service mode to set the primary charge value.

Posted on Oct 24, 2007

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Anonymous

  • 69 Answers

SOURCE: Poor quality copies from the Canon NP 7130F

hi im jules_09.have check the drum unit and the fuser unit check the two unit.first of all the drum unit the drum may be scratch or damage that goes with the fuser unit too.

Posted on Dec 13, 2007

Anonymous

  • 53 Answers

SOURCE: xerox 5305 copier excess toner

sounds like faulty drum cleaning blade,which is usually contained in the replacement drum module.I would be inclined to take the drum unit back where you got it (unless you replaced it with a second-hand one) 99% certain the problem is contained in that module

Posted on Feb 27, 2008

EngineerKhamis

  • 16 Answers

SOURCE: Canon NP 6218 B&W Copier

try also to change or to service the corona units both the upper corona in the drum unit and the the transfer corona assembly unit down the drum. ok try your best.

Posted on Oct 02, 2008

Anonymous

  • 1 Answer

SOURCE: canon np 7130

tengo problemas con mi fotocopiadora ella me imprime con una mancah negra por favor si me pueden colaborar.

mi corro es

alejandrofreitass@hotmail.com

gracias

Posted on Oct 30, 2008

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1 Answer

Why is the upper part of copies dark and the lower part light?


You have to do a service on the machine.Clean the optical sistem,mirrors.Change corona wires,and adjust them.It should help

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Poor copy quality - smudgy copies - changed toner - still the same.


check your OPC drum life, if you have a poor quality with a new cartridge installed (light copy, dirty copy) the opc drum must be replaced, check you machine counter if you have reach 100k copies you need to replace the drum, if you are using a new OPC DRUM, you need to clean the machine, you have to call for service because there is many parts that muat removed to clean properly.

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try also to change or to service the corona units both the upper corona in the drum unit and the the transfer corona assembly unit down the drum. ok try your best.

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This is your drum unit or transfer unit that must be replaced.In what area are you?

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clean the scanner glass. There is probably a tiny dot thats the culprit.

Jul 06, 2008 | Canon NP 7130 Black and White Copier

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With toner being dropped I would take a close look at the cleaning unit next to the drum. Sometimes they become clogged or wear out. Inside the machine, can you see toner that has spilled or piled up? If so that is an indication of a faulty cleaning unit.

MM85

May 23, 2008 | Canon NP 7130 Black and White Copier

1 Answer

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hi im jules_09.have check the drum unit and the fuser unit check the two unit.first of all the drum unit the drum may be scratch or damage that goes with the fuser unit too.

Dec 12, 2007 | Canon NP 7130 Black and White Copier

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