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HP Designjet cc800ps, 815mfp and 4200 Scanner - TWI: System Error 50-xxx (17 to 28, 51 to 81 and 90 to 99)

	Contact center agents (troubleshooting to be performed with customer)
	Parts required (part numbers are subject to change)
	CE instructions

Document number: BPP90185

Last Updated: 03-Jul-2003

Minimum skill level: 2

An error has occurred on the Main Electronics Board, and is displayed as system error 50-xxx (17-28, 51-81, and 90-99) on the touch-screen monitor, or by the following scanner LED light sequence on the scanners front panel:

• Diagnostic = Flashing
• Wait = Off
• Ready = Flashes once

Figure 1: Scanner front-panel LED's



1- Diagnostic LED
2- Wait LED
3- Ready LED

The most common causes are poorly connected cables or a faulty Main Electronics Board. Follow the steps listed below to determine the actual cause of the failure and to replace the appropriate parts.

Contact center agents (troubleshooting to be performed with customer)

The steps below are designed to achieve remote resolution of the issue. If the troubleshooting steps below appear to resolve the issue, attempt to verify scanner functionality. If the issue persists following the steps below, generate a CSO for service.

1. Turn the scanner off, allow 10 seconds and turn it back on.
2. If the error reappears, upgrade the scanner's firmware (if available):
1. Click here to download scanner firmware at http://www.Designjet.hp.com/home.html?intRedir=1057152533.946027&ticket=-hiZcAfho7&pageseq=52699280.
2. Select Downloads from the left-navigation bar.
3. Under the System Maintenance section, choose the appropriate product.
4. Follow the Download and Installation instructions.
3. Following a successful firmware upgrade, attempt to verify functionality.
4. If the problem persists, generate a CSO for service (send all required parts as listed below).

Parts required (part numbers are subject to change)

Part description	HP Designjet cc800ps	HP Designjet 815mfp and 4200 scanner
Main Electronics board (Required)	Q1261-60002	Q1278-60002

NOTE: If Removal and Installation instructions are needed for reference during any repairs performed, refer to the Service Manual available on the Partner Care Web site (http://partner.americas.hp.com/) for review or download.

CE instructions

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

1. Turn the scanner and the touch-screen monitor off.
2. Remove the Top Cover (refer to pg. 4-4 of the Service Manual).
3. Verify all the cables to the Main Electronics board are connected correctly. Attempt to verify functionality if cables are re-seated.
4. Replace the Main Electronics board (refer to pg. 4-27 of the Service Manual).
5. Perform the Scanner Maintenance (refer to pg. 5-19 of the Service Manual).
6. Verify functionality.

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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