Worn transfer unit

If you are having difficulty inserting the transfer belt unit into your Epson C1900 printer, there could be a few different issues causing the problem. Here are a few things you can try to troubleshoot the issue:

1. Check the transfer belt unit: Make sure the transfer belt unit is properly aligned and seated in the printer. If the unit is not properly aligned or seated, it can cause it to get stuck when you try to insert it.
2. Check the printer: Make sure there are no foreign objects or debris inside the printer that may be preventing the transfer belt unit from inserting properly.
3. Check for any visible issues: Inspect the transfer belt unit and the printer for any visible issues that may be causing the problem. This can include damage to the transfer belt unit or the printer, or foreign objects that may have gotten stuck in the printer.
4. Check the transfer belt unit pins: Make sure the pins on the transfer belt unit are properly aligned and seated in the printer. If the pins are not properly aligned or seated, it can cause the transfer belt unit to get stuck when you try to insert it.

If you have tried these troubleshooting steps and the problem persists, it may be necessary to have the printer serviced by a professional. A technician will be able to diagnose the problem and determine the necessary repairs.
I hope this information is helpful. If you have any further questions or need additional assistance, please don't hesitate to ask.

The error code SC312-05 on a Ricoh Versafire CX7100 indicates an issue with the paper transfer unit. Here are some potential solutions to address this error:
1. Check for paper jams: Open the printer's doors and inspect the paper path, including the transfer unit, fusing unit, and paper trays, for any paper jams or obstructions. Clear any jammed paper carefully.
2. Clean the transfer unit: The transfer unit may accumulate toner or debris over time, leading to issues. Follow the manufacturer's instructions to clean the transfer unit thoroughly. Use a soft, lint-free cloth and be cautious not to damage any components.
3. Check for damaged or worn-out parts: Inspect the transfer belt and roller for any signs of damage, wear, or contamination. If you notice any issues, such as tears or excessive wear, the transfer belt or roller may need to be replaced.
4. Reset the printer: Power off the printer, unplug it from the power source, wait for a few minutes, and then reconnect and power it back on. This action can sometimes reset the printer and clear temporary errors.
5. Update firmware and drivers: Ensure that your printer has the latest firmware installed. Visit the Ricoh support website and check for any available firmware updates specific to your printer model. Additionally, verify that you have the latest printer drivers installed on your computer.
6. Contact technical support: If the error persists after performing the above steps, it is recommended to contact Ricoh's technical support or consult a professional technician with expertise in Ricoh printers. They can provide further assistance and guide you through specific troubleshooting steps or arrange for on-site service if needed.
Remember to exercise caution when performing any maintenance or repairs on your printer. If you are uncertain or uncomfortable with the process, it is best to seek professional assistance to avoid any further damage to the printer.

Paper transfer unit contact error

The paper transfer unit contact sensor does not detect the movement of actuator at the sensor while the polygon motor rotates.

?? Defective paper transfer unit contact sensor
?? Defective paper transfer unit contact motor

1. Check or replace the harness.

2. Replace the image transfer belt unit or paper transfer unit.
3. Replace the HVPS-TTS board.

Replacing the ETB (transfer Kit)
Replace the ETB when a REPLACE TRANSFER KIT message displays on the control panel.
1. Turn the printer off.
2. Open the top and front cover.
3. Lower the ETB by pulling the green handle at the top of the unit downward.
4. Press the small blue latches located on either side of the bottom of the ETB and lift the unit out
of the printer.
5. Install the new ETB.
6. Close the front and top covers.

If your Xerox Phaser 6180, 6180mfp, 6280, or 6280mfp is displaying "Replace Transfer Unit" or "Ready transfer Unit Life" you most likely need to replace the transfer unit.
For the 6180 and 6180mfp the part number is 675K47088. For the 6280 and 6280mfp the part number is 675K70583.Here is a video that shows you how to replace this part. It is very easy and requires no tools.

Hi ....

There could be 2 solutions for this problem ...

1) Switch off the device ... wait for 10 seconds and then switch it back on ... most of the time it resolve the problem ..

2) If this does not resolve the problem, you need to remove and re-install the transfer unit which will resolve the problem for sure ...

Follow the below steps to remove and re-install the transfer unit.

CAUTION: Be careful not to touch the black Transfer Belt when replacing the unit. Handle the Transfer Unit by the release latches and the tabs on the left and right side of the unit.

1. Power OFF the printer using the power switch located on the right side of the printer, toward the back. Press the power switch to the (O) position.
   
   
   
   
2. Disconnect the power cord.
   
   
   
   
3. Press the button on the top, right side of the printer to open the Front Cover.
   
   
   
   
4. Grasp and squeeze the green release latches located on the left and right side of the Transfer Unit. Rotate the transfer unit up until the notch on the shaft is aligned with the mounting bracket cutout.
   
   
   
   
   
   
   
   
5. Pull up on the right side of the unit to free it from the bracket, and then slide the unit to the right to remove it from the machine.
   
   
6. Hold the unit by the release latches and insert the left shaft into the left mounting bracket.
   
   
   
   
   
   
7. Slide the unit to the left while rotating the unit to align the shaft-notch with the right mounting bracket cutout, and then press down until the shaft fully seats into the bracket.
   
   
   
   
8. Gently rotate the unit down until the release latches snap into place. Do not push on or touch the black belt.
   
   
   
   
9. Close the Front Cover.
10. Connect the power cord, and then power ON the printer. A 'Ready to Print' message will be displayed on the Display Screen.

Please vote if this helps ... Cheers :)

transfer belt cleaner error
replace the transfer belt unit

It sounds like the transfer belt needs to be replaced. They get scratched up and milky looking and the sensors can't see the color reg marks good enough. It could be other things also but the transfer is a good place to start.

i got this info from www.partshere.com site - they have most service notes for hp printer and sell most hp parts, including maintenance kits. I hope info. bellow is helpfu.

Replacing the transfer unit
Replace the transfer unit when the printer control panel displays REPLACE TRANSFER
KIT. The image transfer kit contains a replacement transfer unit for this printer.
WARNING! Remove any jewelry or any other metal items from your body to avoid electric shock.

1. Lift the front door handle and pull down the front door.
2. Grasp the right blue handle. Press and hold down the blue button. Slightly lift the right
side of the transfer unit.
3. Grasp the left blue handle and lift to remove the transfer unit from the printer.
4. Using handles, remove the new transfer unit from the bag. Use the blue handles on both
sides to hold the transfer unit.
5. Place the new transfer unit on a flat surface. Remove the orange shipping locks.
6. Guide the left side of the transfer unit into the front door of the printer. Insert the two
pegs on the left side into the holes, and then lower the right side into the door.
7. Make sure that the blue button on the right blue handle has released (popped up). If the
button has not released, grasp the right blue handle and pull the transfer unit toward you.
8. Firmly close the front door.
9. After the front door is closed, after a short time, the printer control panel displays the
message NEW TRANSFER KIT.
10. If the message NEW TRANSFER KIT does not appear, you must reset the transfer unit
count. To reset the transfer unit count, go to step 11.
11. On the printer control panel, press to highlight YES, and then press to select it. The
transfer unit count is reset, the printer recalibrates, and then the printer is ready to use.
NOTE If the old transfer unit was not at end-of-life when it was replaced (for example, if it was
damaged), the transfer unit count must be reset using the printer control panel.
Replacing the transfer unit when it is not at end-of-life
If you replace the transfer unit when it is not at the end-of-life, for instance if it is defective,
you will need to reset the transfer unit count and then calibrate the printer, through the
control panel.


To reset the transfer unit count, do the following:

1. Press MENU to enter the MENUS.
2. Press to highlight Configure Device.
3. Press to select Configure Device.
4. Press to highlight RESETS.
5. Press to select RESETS.
6. Press to highlight RESET SUPPLIES.
7. Press to select RESET SUPPLIES.
8. Press to highlight NEW TRANSFER KIT.
9. Press to select NEW TRANSFER KIT.
10. Press to highlight YES.
11. Press to select YES.
To calibrate the printer, do the following:
1. Press MENU to enter the MENUS.
2. Press to highlight Configure Device.
3. Press to select Configure Device.
4. Press to highlight PRINT QUALITY.
5. Press to select PRINT QUALITY.
6. Press to highlight CALIBRATE NOW.
7. Press to select CALIBRATE NOW.
8. Wait for the printer to calibrate.
The transfer unit count is reset and the printer is ready to use.

see pictures on link:
http://www.partshere.com/Models/Q5990A/CLJ_3550%203500%203700Installation_n_config.PDF