HP LaserJet CP1215 Color Printer says Engine Communication Error

1. to recalibrate: first open Toolbox.
   
   • For Windows XP:
   • Click Start (), click All Programs, click HP, click your product, and then click HP Color LaserJet CP1210 Series Toolbox.
   • OR in Windows Vista:
   • Click the Windows icon (), click All Programs, click HP, click your product, and then click HP Color LaserJet CP1210 Series Toolbox.
2. Click the Device Settings folder, and then click the Print Quality page.
3. Under Print Quality, click Calibrate next to Calibrate Now.
4. Click OK when the 'Your request has been sent to the device' message appears on the computer. The calibration process begins.

   NOTE: Calibration might take 2 to 3 minutes. Do not turn the product off during calibration.

5. When calibration ends, try printing again. If the issue is resolved, stop troubleshooting.
   • If you are still experiencing print quality issues, repeat steps 1 through 5 in this solution. You can recalibrate the printer as many as 3 times.

I presume you are referring to the HP Model CP1215. The error 59.C0 error appears to refer to a mechanical error: Developer motor rotation error.
The recommended action is 1. Turn off the power by using the power switch, wait at least 30 seconds, and then turn on the power and wait for the device to initialize. 2. If the problem continues, contact HP Customer Support Center for technical assistance.
Your printer could be about 5 years old by now, so if this is a recurring problem you might be nearing the time for a replacement which might be less costly than taking your printer to be serviced.
You

May be you re using re filled or non hp consumables..

54.06

Error message

54.06

Description

Color density sensor error

Action

1. Power cycle the printer.
2. Calibrate the printer. Click here to view the document "HP Color LaserJet 2600n - Calibrating the printer" available on the HP Web site at (http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00314525).
3. Change the Print Density settings through the HP Toolbox. Click here to view the document " HP Color LaserJet 2600n Printer - Change Device Print Settings in HP Toolbox" available on the HP Web site at (http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00310627).
4. If the problem continues, contact HP Customer Support Center for technical assistance athttp://www.hp.com/support/clj2600n or see the flyer that came in the printer box for additional contact information.

Sounds like you have a defective cartridge. Replace that cartridge and retry.

Have a look at your printer software settings. You may have it set to black and white only. There may also be a driver that was missed during installation to allow colour printing. Try reinstalling the software.

Press the Power switch to turn off the product, wait at least 30 seconds, and then turn on the power. Wait for the product to initialize before proceeding.
If you are using a surge protector, remove it. Plug the product directly into the wall outlet. Press the Power switch to turn on the product.
If the error persists, contact HP to determine if the product needs to be serviced.

Turn off the printer

On your computer click start, click Run, and type in SERVICES.MSC

Scroll down in the services and right click "Print Spooler" and click "Restart"

This should clear out the spooled documents.

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Calibrate the printer. Follow these steps to calibrate the product and align the CPR.

1. Open HP Toolbox
2. In the Toolbox window, click the product model name to expand the menu choices.
3. Click to expand the Device Settings menu.
4. Select Print Quality from the Device Settings menu, and then click Calibrate on the Print Quality panel.
5. Click OK when the Your request has been sent to the device message appears on the computer.

The calibration begins and lasts for approximately 2 to 3 minutes.

If the printout still not acceptable, repeat steps 1 through 5. You can recalibrate the printer as many as three times. If, after three calibration attempts, the printout is still the same, service the product.

When installing new cartridges, it's always a great idea to perform a cleaning and recalibration of the machine. Below are the steps needed to do just such a task. You may want to print these out or save them somewhere for future reference as well. They are directly from the HP website.
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Cleaning the printer

1. Verify the printer is turned on and in the Ready state.
2. Open the HP Color LaserJet 2500 Toolbox. Click Cleaning Page on the Troubleshooting tab, and the click Print (HP Color LaserJet 1500 or 2500) or Cleaning Page (HP Color LaserJet 2550). A page with a pattern prints from the printer.
3. Remove any paper that may be in tray 1.
4. Remove the page that printed and load it face down into tray 1.
5. At the computer, press Clean .

Calibrating the printer There are two methods of calibrating the printer manual: at the printer or from the Toolbox on the computer. From the printer Turn the printer off and then on again. From the HP Color LaserJet 1500 or 2500 Toolbox on the computer

1. Open the HP Color LaserJet 1500 or 2500 Toolbox in one of the following ways:
   • Double-click the HP Color LaserJet 1500 or 2500 Toolbox icon on the computer desktop.
   • Select Start , Programs , HP Color LaserJet 2500 , and then HP Color LaserJet 1500 or 2500 Toolbox to open the Toolbox from the Windows desktop.
2. Click Diagnostic Tools on the left side of the screen on the Troubleshooting tab.
3. Click Color Calibration to perform the calibration procedure.

From the HP Color LaserJet 2550 Toolbox on the computer

1. Open the HP Color LaserJet 2550 Toolbox in one of the following ways:
   • Double-click the HP Color LaserJet 2550 Toolbox icon on the computer desktop.
   • Select Start , Programs , Hewlett-Packard HP Color LaserJet 2550 series , and then HP LaserJet Toolbox to open the Toolbox from the Windows desktop.
2. Click Print Quality Tools on the left side of the screen on the Troubleshooting tab.
3. Click the Calibrate Now button to perform the calibration procedure.