Question about Ricoh Aficio 450 Copier

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Leazer hi. i have an ( sc 322 ) in my copier . i think it.s leazer unit. i want to knew how i can fix it please explane the soulution with details. and tell me how i can keep the leazer unit good in my copiers.

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  • Contributor
  • 19 Answers

Clean all the mirror and glass inside the Laser Unit.
If it doen´t work chande the LD Unit. Not the Whole Laser Unit.

Posted on Dec 24, 2008

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  • Ricoh Master
  • 2,794 Answers

I don't have the specifics for that service code but all the other Ricoh copiers that have an SC3XX in the code indicates the polygon motors aren't working properly.

Check the cables out. Make sure your firmware has been upgraded as well.

Posted on Aug 21, 2008

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Sc 990


SC990 [Cause]

Dirty contacts on Upper Right Cover Safety Switches. Toner gets inside the Upper Right Cover Safety Switches, which can lead to lower DC voltage being applied to the Laser Diode. Which leads to:

SC 990 eng_procon.c (when a normal Grayscale pattern was not detected 15 times consecutively during ID Sensor Grayscale pattern check) check with SP 7403 Service Code History look for Detail in history of SC 990.

LD Power not being strong enough to be read by Laser Synchronizing Detector causing a SC 322 or 326 depending upon timing.

5vdc not being fully applied to connector 403 pin 3 on the Laser Diode PCB causing an Open Cover Indication, or 24vdc not being applied fully to connector 107 pin 2 on the PSU PCB causing an Open Cover Indication.

Circuit Explanation: 5vdc (VCCD)is output from connector 403 pin1 of the Laser Diode PCB where it travels through 2 of the Upper Right Cover switches than through 2 of the Front Cover Safety switches before being applied to connector 403 pin 3 of the Laser Diode PCB where it is now used to power the Laser Diode. Lower voltage on pin 3 leads to lower laser diode output which causes the machine to raise LD Power (SP 2-103) when maximum values are reached, laser diode output can not be increased further which can lead to SC 322, SC 326 and/ or SC 990 eng_procon .c. If the voltage drops too low an open door indication is sent to the BICU PCB but a signal is not sent to the IOB PCB which tells the machine which door is open.

Note: An older Drum more than 150,000 copies can also lead to SC 990 by causing incorrect ID Sensor readings

[Resolution]

1. Clean the internal contacts or replace Right Door Safety Switches (2 of Part Number 1204 2521 and 1 of Part Number 1204 2529)

Clean and vacuum the PCU.
Clean the Toner Shield Glass, Charge Roller and ID Sensor.
Check Service history for Drum Life, if over 150,000 replace Drum (Part Number A230 9510)
Reset SP 2103 -1 thru 4 to defaults.(LD Power Adjustments)
Reset SP 2001-1 to its default. (Charge Roller Bias Adjustment)
Execute SP 3001- 2 (ID Sensor Initial Setting)

Sep 08, 2011 | Ricoh Aficio 450 Copier

1 Answer

Ricoh aficio 2035 sc 322 (unidad de lazer en buenas condiciones) ?que mas puede ser ¿


sc 322 is a laser unit problem. find a ricoh technician and clean the laser unit or replace it. this laser problem is hard to solve usually.

Sep 28, 2010 | Ricoh Aficio 450 Copier

3 Answers

SC 322


sc 322 how to solve this error

Jun 16, 2010 | Ricoh Aficio 450 Copier

2 Answers

Ricoh 1035 laser problem


sometimes the plastic of the laser is turned by the heat proves to relax and to fit the screw that holds the laser unit that is of the side of the drum while it raises a millimeter with a screwdriver, this sometimes works.
Verifies that the glasses and mirrors well be positioned correctly.
Other

Poor connection between the laser
synchronization detector board and
the LD unit.
Laser synchronization detector board
out of position
Laser synchronization detector board
defective
LD unit defective

May 07, 2009 | Ricoh Aficio 1035 Copier

3 Answers

Sc 322, sc 326 codes


Never heard of this happening to five machines before.  Check the connections in the laser unit.

Oct 25, 2008 | Ricoh Aficio 1035 Copier

3 Answers

Sc 322 on a 3045. cudnt figure out how to fix this problem. everytime i switch it on n off sc code disappears, once i print the paper stops at the registration roller and brings up the sc code. dont...


Another poblem with this machine is that the sync detect for the 400 dpi and 600 dpi could be off. Go into service modes by pressing the yellow clear modes key then pressing the numbers 1 0 7 then hold done the red stop key till you see the display change. Now go into copy sp, then hit the 2 in the window {drum}, next use the page down button located in the middle of the screen till you see the one that says 2109 LD Beam Pitch Adjust. Go to number 2109-8 beam pitch data reset. execute then go to 2109-1 and set it to 144 then hit pound. Now go to 2109-3 and execute. last go to 2109-2 and set it to 168 then hit pound. Now go to 2109-4 and execute. exit out of the service modes window. now try to run a copy and a print. If these fail the you either need to clean the laser assembly, a polygonnal mirror moror or laser drive unit.

Oct 16, 2008 | Ricoh Aficio 1035 Copier

2 Answers

Afficio 450 sc 322


1st laser synchronization error.  This should be looked at by a Ricoh technician to see what needs to be replaced.

Sep 11, 2008 | Printers & Copiers

2 Answers

Aficio 450


SC 322 is a laser diode problem. It will require service.

Mar 27, 2008 | Ricoh Aficio 450 Copier

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