REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday 5 February 2019

SAMSUNG MFP SCX-4600 - SCX-4623 SERIES - HOW TO CLEAR THE PAPER JAM FAULT MONO LASER PRINTER

Samsung MFP SCX-4600 - SCX-4623 series - How to clear the paper jam fault Mono Laser printer

SCX-4600/SCX-4623 series [3 in 1] - SCX-4600/4623 Series [4 in 1] Samsung Laser Printer – How to handle the Paper Jam fault – Probable reasons for Paper-Jam.
Paper Feeding With Toner Cartridge Sensing
  When the lead edge of the paper is detected by the Feed Sensor (photo interrupter), it begins the development process of the drum after a predetermined time.  A paper jam condition is detected if the lead edge of the paper is not detected by the feed sensor within 1sec.after the initialization of paper feed; then the LED warning light will be display (RED color). 
  The toner cartridge detection is monitored by the CRUM sensors. If all of the CRUM sensors are off, the CPU knows the cartridge is not in the machine, and takes appropriate action by turning on the out of toner light. If the CRUM sensors do not detect that the correct cartridge is inserted, the CPU will display the toner cartridge is invalid, it will show invalid sign on a LED.  If feeding from a cassette, the drive to the pickup roller is controlled by a solenoid. The on/off time the solenoid is controlled by Main PBA. The Paper Jam protocols are as follows:
Jam-0
- After picking up, paper cannot be entered due to paper is not fed.
- After picking up, paper does not reach the Feed Sensor in after a predetermined time due to paper slippage, etc.
- After picking up, if the Feed Sensor does not detect paper after a predetermined time following the initialization of another take-up retry.
* It is a status that the leading edge of the paper doesn’t pass the feed sensor.
- Even though the paper reaches to the feed sensor, the feed sensor doesn’t be ON.
* It is a status that the leading edge of the paper already passes the feed sensor.
Jam-1
- The trailing edge of the paper must clear the Feed Sensor after predetermined time.  (The feed sensor cannot be OFF)
- The leading edge of the paper must detect the Exit Sensor within a predetermined after leaving the Feed Sensor. (The exit sensor cannot be ON)
* The paper exists between the feed sensor and the exit sensor.
- The trailing edge of the paper must clear the Exit Sensor after predetermined time.
Jam-2
- The trailing edge of the paper must clear the Exit Sensor after predetermined time.
Tips for avoiding paper jams
> Ensure that the adjustable guides are positioned correctly.
> Do not overload the tray. Ensure that the paper level is below the paper capacity mark on the inside of the tray.
> Do not remove paper from the tray while your machine is printing.
> Flex, fan, and straighten paper before loading.
> Do not use creased, damp, or highly curled paper.
> Do not mix paper types in a tray.
> Use only recommended print media.
> Ensure that the recommended side of the print media is facing down in the tray, or facing up in the manual tray.
Clearing paper jams
When a paper jam occurs, a warning message appears on the display. To resume printing after clearing paper jams, you must open and close the front door.
1. Open and close the front door. The jammed paper is automatically ejected from the machine.  If the paper does not exit, go to the next step.
2. Pull out tray 1
If the paper does not move when you pull, or if you do not see the paper in this area, check the fuser area around the toner cartridge.
4. Insert tray 1 back into the machine until it snaps into place. Printing automatically resumes.
In the manual tray
1. If the paper is not feeding properly, pull the paper out of the machine.
2. Open and close the front door to resume printing.
Inside the machine
1. Open the front door and pull the toner cartridge out, lightly pushing it down.
2. Remove the jammed paper by gently pulling it straight out.
3. Replace the toner cartridge and close the front door. Printing automatically resumes.
In exit area
1. Open and close the front cover. The jammed paper is automatically ejected from the machine.  If you do not see the jammed paper, go to next step.
2. Gently pull the paper out of the output tray.
If you do not see the jammed paper or if there is any resistance when you pull, stop and go to the next step.
3. Open the rear cover.
4. Pull the pressure levers down and remove the paper.
Return the pressure levers to their original position.
If you do not see the jammed paper, go to next step.
5. Pull the fuser covers levers down and remove the paper.  Return the pressure levers to their original position.  If you do not see the jammed paper, go to next step.
6. Close the rear cover.
7. Open and close front cover, printing automatically resumes.
Specs:
1. Print / Copy Speed:  23 ppm in letter
2. Processor:  Jupiter5 375 Mhz
3. Printer Language Emulations:  SPC, PCL-5 (4623FW)
4. Memory:  64 MB (4600/4623F)  128 MB (4623FN)  256MB (4623FW).  5. Interfaces:  One USB port  One 10/100 Base TX network connector (4623FN)  One 802.11b/g/n wireless module (4623FW).  6. Toner cartridge:  Initial : 0.7K / 1K.  Sales : 1.5K / 2.5K two types7. ADF (4623 series)
Posted By: FRANK at 08:53
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