I have a riso cr1630, after printing, image on papers is colorless or weight. i cheek ink cartridge and change it. but this problem Occur again! tell me what is problems please?

Hi, you have a blockage in the ink tunnel. Do a tester a couple of times to flush it out, it should work fine after that, a common problem for these makes, good luck

All you really have to do is put in the ink color you want and run a bunch of prints. Going from a light to dark color like black is fast--like about 3000 prints. Black to light color is going to be a lot more prints. Best is to print something with heavy ink. the more ink you put out the fast it will change color.

first you have to drain the ink... to do this after making a master with a heavy image on it.
1. turn off the machine and start it up while holding left and right print position buttons. when machine starts up you will see a number ... press the c or stop or yellow clear to reset that to 0000.
2. place paper in the paper tray and enter 888 and press start.
3. the machine will start printing .. let it print jntil the image is very light and press stop.
4. press the c clear or stop button to reset display to 0000
5.place the new color you want into the drum and enter code 890 and perss start.
6. hold down the yellow reset button u til the machine restarts.
7. all done! but please note you will have color mixing and banding for a few thousnad copies until the old color gets purged, there is no way around this.

Printing with an empty ink cartridge may cause printer malfunction. U051 / U052
U053 / U059 The ink cartridge may not be set properly, or an ink cartridge not supported by the printer is installed.
Install the proper ink cartridge.

Make sure to install both the ink cartridges even when you set the printer to use only one ink cartridge (Color or Photo) in printing.
If one of the ink cartridges is missing, this error will occur. U075 / U076 The ink cartridges are not installed in the proper position.
Install each ink cartridge in the proper position. U140 An ink cartridge not supported by the printer is installed.
Install the proper ink cartridge. U161 / U162 A used ink cartridge may be installed, or the ink cartridge may be empty.
Replace the ink cartridge.

By pressing the OK button, printing can be done without replacing the ink cartridge. However, the remaining ink amount cannot be detected properly, so the function to detect the remaining ink amount does not operate. READ/WRITE MODE Since the memory card is currently write-enabled, printing is not possible.
Set READ-ONLY MODE ON. NO PHOTOS ON CARD Some images in the memory card may not be in a supported format. images listed below cannot be printed directly from a memory card. Print them from a computer.

- images edited on the computer
- images in a format other than JPEG or TIFF
- images with double-byte characters used in the file name
- images saved in a folder nested 4 or more layers deep INCOMPATIBLE CAMERA The printer cannot communicate with the connected camera.
Disconnect the cable between the printer and the camera to clear the error.
Confirm the following items and print again.

1. Confirm that the camera you are using supports PictBridge or Canon Bubble Jet Direct.
If the camera does not support either one, the printer cannot print directly from the camera.
2. Set the camera in PictBridge print mode before it is connected to the machine. This is required before printing for some cameras that support PictBridge.
Please refer to the camera instructions for more information about procedures required before and after connection to the printer.
3. There may have been no response from the camera for the prescribed time.
Re-connect the cable between the camera and the printer. WASTE INK NEAR FULL The waste ink absorber is getting full.
Press the OK button to clear the error.
Printing can be done until the waste ink absorber becomes full. If the waste ink absorber becomes full, please contact your local Service Center for replacement of the absorber and printer maintenance.

The waste ink absorber is a part inside the printer, which absorbs ink used in the cleaning operations, etc. CHECK PRINTER Turn the printer off, and remove the power plug from the outlet.
About ten minutes later, plug it in again, and turn the printer on.
If the problem is not resolved, the printer may require servicing. Please contact your local Service Center. HEAD ALIGNMENT ERROR Automatic print head alignment failed.
Press the OK button to release the error.
Check the followings and do automatic print head alignment again.

- Check if A4/Letter-sized paper is loaded in the auto sheet feeder.
- Check if the paper output slot is not exposed to a strong light source
- Print the nozzle check pattern to check the status of the print head.

If the problem continues, do manual print head alignment. LOAD PAPER If paper is not set, set paper and press the OK button. When paper is set, check each item and do printing again.

1. Confirm that unusable paper is not set.
2. Confirm that paper is set properly.
3. Confirm that recommended paper is used, and the number of sheets set in the auto sheet feeder is within the limit.
4. Cleaning the paper feed roller may resolve the error.

If the problem persists, the printer may require servicing. Please contact your local Service Center. PAPER JAMMED Remove the jammed paper.
If paper jam frequently occurs, check the following:

1. Confirm that no foreign material is inside the printer.
2. Confirm that unusable paper is not set.
3. Confirm that paper is set properly.
4. Confirm that recommended paper is used, and the number of sheets set in the auto sheet feeder is within the limit.

If the problem persists, the printer may require servicing. Please contact your local Service Center.

The machine do not reconise the ink.At the back of the ink there is a electronic chip that tells the machine what tipe of ink it is.There is a problem with that chip or the ink is not compatible.Replace your ink in most cases this will solve it,but let me know if I can futher assist.
Thanks for supporting us.

If your print jobs are colorless or color poor you need to replace the color cartridge, if your jobs look fairly normal but the printer says to change the ink. You are out of Black (because the printer can make black using all the colors.) However, you can usually lift the cartridge and feel the difference in weight. If both are so light they feel empty you are better off replacing both. Because of the way the HP printers print, unless you specifically told the printer to print black and white, two cartridges installed at the same time will probably deplete equally .

Error messages displayed on the LCD and how to handle them
When an error has occurred in the printer, the error / check message is displayed on the LCD.
Take the appropriate action to return to the normal condition.
Error / Check message How to correct CHECK INK
U041 An ink cartridge is empty.
To cancel printing, press the Stop/Reset button.
To continue printing, press the OK button.
After the printing finishes, replace the empty ink cartridge.
Printing with an empty ink cartridge may cause printer malfunction. U051 / U052
U053 / U059 The ink cartridge may not be set properly, or an ink cartridge not supported by the printer is installed.
Install the proper ink cartridge.

Make sure to install both the ink cartridges even when you set the printer to use only one ink cartridge (Color or Photo) in printing.
If one of the ink cartridges is missing, this error will occur. U075 / U076 The ink cartridges are not installed in the proper position.
Install each ink cartridge in the proper position. U140 An ink cartridge not supported by the printer is installed.
Install the proper ink cartridge. U161 / U162 A used ink cartridge may be installed, or the ink cartridge may be empty.
Replace the ink cartridge.

By pressing the OK button, printing can be done without replacing the ink cartridge. However, the remaining ink amount cannot be detected properly, so the function to detect the remaining ink amount does not operate. READ/WRITE MODE Since the memory card is currently write-enabled, printing is not possible.
Set READ-ONLY MODE ON. NO PHOTOS ON CARD Some images in the memory card may not be in a supported format. images listed below cannot be printed directly from a memory card. Print them from a computer.

- images edited on the computer
- images in a format other than JPEG or TIFF
- images with double-byte characters used in the file name
- images saved in a folder nested 4 or more layers deep INCOMPATIBLE CAMERA The printer cannot communicate with the connected camera.
Disconnect the cable between the printer and the camera to clear the error.
Confirm the following items and print again.

1. Confirm that the camera you are using supports PictBridge or Canon Bubble Jet Direct.
If the camera does not support either one, the printer cannot print directly from the camera.
2. Set the camera in PictBridge print mode before it is connected to the machine. This is required before printing for some cameras that support PictBridge.
Please refer to the camera instructions for more information about procedures required before and after connection to the printer.
3. There may have been no response from the camera for the prescribed time.
Re-connect the cable between the camera and the printer. WASTE INK NEAR FULL The waste ink absorber is getting full.
Press the OK button to clear the error.
Printing can be done until the waste ink absorber becomes full. If the waste ink absorber becomes full, please contact your local Service Center for replacement of the absorber and printer maintenance.

The waste ink absorber is a part inside the printer, which absorbs ink used in the cleaning operations, etc. CHECK PRINTER Turn the printer off, and remove the power plug from the outlet.
About ten minutes later, plug it in again, and turn the printer on.
If the problem is not resolved, the printer may require servicing. Please contact your local Service Center. HEAD ALIGNMENT ERROR Automatic print head alignment failed.
Press the OK button to release the error.
Check the followings and do automatic print head alignment again.

- Check if A4/Letter-sized paper is loaded in the auto sheet feeder.
- Check if the paper output slot is not exposed to a strong light source
- Print the nozzle check pattern to check the status of the print head.

If the problem continues, do manual print head alignment. LOAD PAPER If paper is not set, set paper and press the OK button. When paper is set, check each item and do printing again.

1. Confirm that unusable paper is not set.
2. Confirm that paper is set properly.
3. Confirm that recommended paper is used, and the number of sheets set in the auto sheet feeder is within the limit.
4. Cleaning the paper feed roller may resolve the error.

If the problem persists, the printer may require servicing. Please contact your local Service Center. PAPER JAMMED Remove the jammed paper.
If paper jam frequently occurs, check the following:

1. Confirm that no foreign material is inside the printer.
2. Confirm that unusable paper is not set.
3. Confirm that paper is set properly.
4. Confirm that recommended paper is used, and the number of sheets set in the auto sheet feeder is within the limit.

If the problem persists, the printer may require servicing. Please contact your local Service Center.

It is master position sencor,take out your master roll,pull out your drum. Take a a4 paper and push it threw there were your master go in,roll the 3 rollers in front so that the paper go forward so you can see the paper inside machine and pull the paper out to the inside of the machine. Put every thing back,turn off machine and while you hold the reset button in,turn machine on again. let me know if it worked.

This may or may not work on your model

"Press and hold the paper feed, paper switch and the power switch.

Once the power light and paper light flashes twice and the other lights are flashing release the paper feed and paper switch "and then press the paper feed switch".

The power, paper and ink lights will flash twice. At this point the protection counter has been reset."

The Protection Counter referred to above prevents you from printing once the printed pages counter reaches a predetermined threshold.

If this doesn't work, let me know.

Regards,
Worldvet

E3 – Paper jam error.
How to correct, fix: Remove the jammed paper. If paper jams frequently occur, check the following:
1. Confirm there is no foreign material inside the machine.
2. Confirm only recommended paper is installed.
3. Confirm paper is installed properly.
4. Confirm the maximum number of sheets in the auto sheet feeder is within the paper limit mark.

E4 – Empty ink tank.
How to correct, fix: An ink cartridge is empty. To cancel printing, press the <Stop/Reset> button. To continue printing, press <Black> or <Color> button. After printing completes, replace the empty ink cartridge. Printing with an empty ink cartridge may cause the machine to malfunction.

E5 – The ink cartridge(s) is not installed. The ink cartridge(s) cannot be recognized.
How to correct, fix: Make sure to install both ink cartridges even when you set the machine to use only one ink cartridge in printing. If one of the ink cartridges is missing, this error can occur.

E7 – The ink cartridge is not installed in the appropriate position.
How to correct, fix: The ink cartridge is not installed in the proper position. Install each ink cartridge in the proper position.

E8 – The ink wasteabsorber is almost full.
How to correct, fix: The waste ink absorber is getting full. Press the <Black> or <Color> button to clear the error and continue printing. Printing can continue until the waste ink absorber becomes full. If the waste ink absorber becomes full, the machine will require service. The waste ink absorber is a part inside the machine, which absorbs ink used in the cleaning operations.

E9 – A specified period of time has elapsed without receiving a response from the digital camera. A print mode compliant with PictBridge is not selected. A specified period of time has elapsed without receiving a response from the digital camera.
How to correct, fix: The machine cannot communicate with the connected camera. Disconnect the cable between the machine and the camera to clear the error. Check the following items, then try printing again.
1. Confirm that the camera you are using supports PictBridge or Canon Bubble Jet Direct. If the camera does not support either one, the machine cannot print directly from the camera.
2. Set the camera in PictBridge print mode before it is connected to the machine. This is required before printing for some cameras that support PictBridge. Please refer to the camera instructions for more information about procedures required before and after connection to the machine.
3. There may have been no response from the camera for the prescribed time. Re-connect the cable between the camera and the machine.

E14 – Ink cartridge cannot be recognized.
How to correct, fix: Unsupported ink cartridge may be installed.

E15 – Install only recommended ink cartridges.
How to correct, fix: Install only recommended ink cartridges.

E16 – The ink level cannot be correctly recognized or detected.
How to correct, fix: A used ink cartridge may be installed, or the ink cartridge is empty. Press the <Black> or <Color> button, to clear the error and continue printing without replacing the ink cartridge. However, the remaining ink amount cannot be detected properly, so the function to detect the remaining ink amount does not operate.

E19 – Scanning failed error.
How to correct, fix: Scanning a document failed. Check if the document is placed in the correct orientation position and try the operation again.