Answered By: Donna Wrublewski
Last Updated: May 15, 2017     Views: 593

These instructions are current as of 10/14/16. Please note that printer driver files and configurations may change. If there are any inaccuracies in these instructions, please let us know at

  1. Go to and accept the license agreement. Download the package corresponding to your operating system.
  2. Follow the instructions in the downloaded driver package to install the printer drivers on your computer.

    • If you see this screen, select either Update or Replace. 

    • If you see this screen, select Install Printer Driver Only near the bottom to complete installation.

  3. Launch a web browser and in the URL bar enter the following: localhost:631 for the address.

  4. You may see the following message (or a variant of it) and be denied access. If this happens, proceed with this step. If you do not see this message, proceed to step 5.

    • Launch Terminal and enter the following: cupsctl WebInterface=yes (and press enter):

      When complete you can exit Terminal. Refresh your browser screen with with the URL set to localhost:631 and proceed to step 5.

  5. You should now see the following screen. Click the Administration link near the top.

  6. On the following screen, click the Add Printer button.


  7. After you have clicked the Add Printer button you will be prompted for local machine admin authority
    credentials. (Note: this is NOT your access.caltech account. This is your local machine admin login account because you are making changes to your local machine). Enter your local machine admin authority credentials and click the OK button.


  8. On the following screen select the LPD/LPR Host or Printer bullet and click the continue button.


  9. On the following screen, in the Connection field, enter the following:
    to add the color printer queue, or
    ​to add the grayscale printer queue, ​and replace <access.caltech.username> with your username, without the angle brackets. The access.caltech username must be correct otherwise card release will not recognize the print job. After entering the appropriate information, click the Continue button.


  10. Enter descriptive data here (it can be whatever you want), then click the Continue button.


  11. On the following screen, under the Make pulldown window, select RICOH and click the Continue button.
    If you do NOT see RICOH listed, try reinstalling the driver.


  12. On the following screen you'll need to scroll down until you locate the appropriate Printer model/driver. Select the first RICOH MP C5503 PS option in the list. Once selected, click the Add Printer button.


  13. If you reach this following final page, then your printer has successfully been added.

  14. Repeat steps 6-13 to add another printer if needed (color, grayscale).
  15. At this point, the printers should be available from any application on your Mac from which you can normally print. When you send your print job to the print queue, you can print from any Library printer. They are located in Sherman Fairchild Library 1st floor (3 machines), Millikan 9th floor, Dabney 1st floor, Cahill, and Geology main room. From any printer, swipe your card (or enter your access.caltech credentials) and you will see a list of all pending print jobs. You can then choose to either print or cancel the job. Don’t forget to log out when finished using the printer – you will be logged out automatically after about 60 seconds with no activity.