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HP Designjet CP Series Printers - System Error 020001, 020005

	Parts required (part numbers are subject to change)
	Troubleshooting steps
	Perform the D06 refill diagnostic test
	Performing Service Calibrations

Document number: BPP90051

Last updated: 13-Jan-2003

Minimum skill level: 2

The Elevator assembly is unable to find its home position. The most common cause is a malfunctioning Elevator assembly or Refill Interconnect PCA. Use the steps listed in this document to determine the cause of the error and replace the appropriate parts.

Parts required (part numbers are subject to change)

Part description	2X00CP - C4703A, C4704A, C6085A	3X00CP - C4723A, C4724A, C6084A
Elevator assembly (Required)	C4704-60033	C4704-60033
Refill Interconnect PCA (Required)	C4704-60009	C4704-60009

NOTE: If Removal and Installation instructions are needed for reference during any repairs performed, refer to the CP Series Service Manual available on the Computer Care Web site for review or download.

Troubleshooting steps

If parts are replaced or fixed in any of the steps listed below, attempt to verify printer functionality by turning the printer on and printing internal test prints. If functionality is verified, no additional parts should be replaced.

1. Power the printer off.
2. Open the top cover.
3. Make sure the rubber tabs (pictured in Figure 1 below) on both ends of the overdrive are not obstructing the carriage or cutter movement. The corners of the rubber tabs may pull up, or the entire tab may have moved causing an obstruction in the carriage or cutter path. Reposition tab(s) as needed.

Figure 1: Rubber tab pictured on left side of the overdrive assembly (HP Designjet 750c pictured)

4. If the tab was re-positioned in the previous step, turn the printer on and attempt to verify functionality. Continue with the remaining steps if problems persist.
5. Turn the printer off.
6. Remove any obstacles in the elevator path.
7. Remove all ink cartridges (left side of printer).
8. Turn the printer on (without cartridges installed).
9. If instructed to install the ink cartridges, install the cartridges and verify printer functionality by printing several internal prints.
10. If the error reappears, or problems persist when verifying printer functionality, continue with the remaining steps.

NOTE: If the printer has been recently serviced, make sure the refill interconnect and elevator cables are correctly connected to the electronics module. Also make sure the cables for the elevator stepper motor and sensor are correctly connected to the refill interconnect PCA. If any problems are noticed and fixed, verify printer functionality. If the error reappears or problems persist when verifying printer functionality, continue with the remaining steps.

Perform the D06 refill diagnostic test

1. Turn the printer off using the main power switch located on the back of the printer.
2. Press and hold the Up arrow key and the Enter key on the front panel while turning the printer on using the main power switch.
3. Keep holding the Up arrow and Enter keys until the message "Status/Initializing" is displayed on the front panel display.

NOTE: Certain printer failures can occur that will prevent the printer from completing initialization. If this problem occurs, turn the printer off. Press and hold down the Enter and Up arrow keys while turning the printer on, this will allow access to the Service tests submenu.

4. Press Enter at the Status display.
5. Use the Arrow keys to scroll to Utilities, and press Enter.
6. Scroll to the Service test submenu.
7. Scroll to the Diagnostics menu display and press Enter.
8. Scroll to D06 Refill, and press Enter.
9. The printer will begin to test the operation of the refill and elevator assemblies.
10. If the message "D0600 OK" is displayed, the test has passed.

NOTE: This test should not pass, given that the System Error reported is related to the elevator and refill assemblies. However, if the test passes, power cycle the printer and print several internal prints to verify functionality. If error message returns, or problems persist, perform the D06 refill diagnostic test again.

11. If the message "D0601 Fail" is displayed on the front panel, replace the refill interconnect PCA (refer to pages 8-64 of the Service Manual).
12. After installation perform the following diagnostic tests:
• D11 Bail
• D08 Sensors
• D03 Carriage axis
• D06 Refill
13. Verify printer functionality by printing several internal prints.
14. If the message "D0602 Fail" is displayed on the front panel, replace the elevator assembly (refer to pages 8-52 of the Service Manual).
15. After installation of the elevator assembly, perform the D06 refill diagnostic test and verify printer functionality by printing several internal prints.

Performing Service Calibrations

Following each calibration, turn the printer off to store the new calibration values in the EEROM. Turn the printer on (entering Service mode) and perform the next required calibration. Repeat this cycle until all necessary calibrations have been performed.

1. Make sure the printer is turned off from the power switch on the back of the printer.
2. Hold the Up Arrow key and the Enter key down while turning the printer on.

NOTE: Continue to press both the Up Arrow key and the Enter keys until letters begin to scroll on the lower right corner of the front-panel display.

3. Once the message "Status/Ready" is displayed on the front panel, press Enter.
4. Use the Arrow keys to scroll to the Utilities menu display and press Enter.
5. Scroll to Service Tests and press Enter.
6. Scroll to Service Calibrations and press Enter.
7. Use the Arrow keys to scroll through the specific calibrations and press Enter when the required calibration is displayed.

NOTE: For the best results when performing the Accuracy calibration, use a Polyester Matte film. If Polyester Matte film is not available, use HP High Gloss or Heavy Coated media.

Copyright Hewlett-Packard Co. 2001
This information is subject to change without notice and
is provided "as is" with no warranty.
Hewlett-Packard shall not be liable for any direct,
indirect, special, incidental or consequential damages
in connection with the use of this material.

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