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HP Designjet 500 and DesignJet 800 Series Printers - TWI: System Error 22:10

	Parts required (part numbers are subject to change)
	Troubleshooting steps
	Verifying printer functionality

KRS document number: BPP90132

Last Updated: 24-Aug-2001

Minimum skill level: 2

System error 22:10 is generated when the printer has detected a fault in the Ink Supply Station. Causes of this error can include the Ink Supply Station, Interconnect PCA, Interconnect PCA Cable or the Electronics Module. Follow the steps listed below to accurately troubleshoot the issue, and replace the appropriate parts.

Parts required (part numbers are subject to change)

Part Description	Designjet 500 Models - C7769B, C7770B, C7769C, C7770C	Designjet 800 Models - C7779B, C7780B, C7779C, C7780C
Ink Supply Station (Required)	C7769-60148	C7769-60148
Interconnect PCA (Required)	C7769-60173	C7769-60173
Interconnect Cable (Required)	C7769-60180 24" C7770-60016 42 "	C7769-60180 24" C7770-60016 42"
Electronics Module (Required)	C7779-60263	C7779-60263

NOTE: If Removal and Installation instructions are needed for reference during any repairs performed, refer to the HP Designjet 500 and 800 Series Service Manual available on the Computer Care Web site for review or download.

Troubleshooting steps

If any of the troubleshooting steps listed below solve the problem, attempt to verify printer functionality (instructions listed below). If functionality is verified, no additional parts should be replaced.

NOTE: Always verify the printer's current Firmware release and upgrade as needed.

1. Turn the printer off, then on to verify error. If no error attempt to verify functionality.
2. If the error appears or problems persist, continue with the remaining steps.
3. Turn the printer off, and disconnect the power cable.
4. Remove the right end cover.
5. Check both Ink Supply Station connections on the Interconnect PCA. If the unit shows the error on boot up verify that the connector with the blue wires is seated correctly (Connector P4). If the error appears when a print job is sent to it verify that the connector with the red, black and green wires is seated correctly (Connector P2).
6. Reconnect the power cable and turn the printer on.
7. If no error appears, attempt to verify functionality.
8. If the problem persists, continue with the remaining steps.
9. Replace the Ink Supply Station (refer to pg. 8-48 of the HP Designjet 500 and 800 Series Service Manual).
10. Following replacement, attempt to verify functionality.
11. If the error reappears, replace the Electronics module (refer to pg. 8-24 of the HP Designjet 500 and 800 Series Service Manual).

CAUTION: Never replace both the Ink Supply Station and the Electronics module at the same time. The printers Model ID will be lost.

12. Following replacement, verify printer functionality as described below.

Verifying printer functionality

1. Turn the printer on.
2. Allow initialization to complete.
3. Load media into the printer.
4. From the main front-panel menu, select the Ink menu and press ENTER.
5. Select Troubleshooting and press ENTER.
6. Follow the instructions on the Front panel.
7. Following a successful troubleshooting print, printer functionality is verified.

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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