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HP Designjet 750C Plus Series Printers - Switch Power Off Check Cartridge Path

	Introduction
	Parts required
	Troubleshooting steps
	Verify functionality

KRS document number: BPP90019

Last updated: 12-Jul-2002

Minimum skill level: 2

Introduction

This document describes procedures to correct excess friction or obstruction in the carriage path. The most common cause of this error message is the Y-motor. Follow the steps listed below to accurately troubleshoot the issue, and replace the appropriate parts.

Parts required

Part description	Models C4709A/B	Models C4708A/B
Y-Motor (Required)	C3195-60112	C3195-60112
Carriage Belt (Required)	C4706-60082	C4705-60082
Encoder Strip (Required)	C4714-60098	C4713-60098
Lubricant (Required)	6040-0854	6040-0854
Cutter Assembly (Required)	C2858-60021	C2858-60021
Idler Pulley (Required)	C3195-60169	C3195-60169
Tensioner (Optional)	C3195-40039	C3195-40039

Troubleshooting steps

• Remove any obstructions such as jammed media from the carriage path.
• Clean and lubricate the carriage rails.
• Replace the cutter if it is bent or damaged.
• Check the main belt for fraying or other damage. Replace the belt if necessary.
• Verify the encoder strip does not touch the carriage anywhere along the Y-axis. Replace the encoder strip if necessary.
• Verify the rear carriage bushing is seated correctly. To reseat it, stand behind the printer, and push in on the bushing with a flathead screwdriver until the bushing pops into place. If a pop is not heard, it is not correctly seated.
• If necessary, replace the Y-motor, the tensioner, and the idler pulley.

Verify functionality

Turn the printer off, then on, and print several internal plots "E" or "D" size.

Copyright (C) Hewlett-Packard Co. 2000
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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