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Introduction
When the Main Drive Assembly on the CP5525 is removed from the printer, care must be taken
when this part is reinstalled to ensure the gears in this assembly do not become misaligned.
There are two reasons why the Main Drive Assembly would need to be removed from this product
1. The part is defective and must be replaced with a new part. In this case, the new part is
shipped with orange alignment pins in place to ensure the gears stay aligned until the
assembly is installed on the printer.
2. The Fuser Drive Assembly must be replaced and the Main Drive Assembly must be
removed to access this part. In this case, where the Main Drive Assembly is removed and
the same assembly is reinstalled, some additional steps need to be taken in order to
maintain the alignment of the gears. This document explains the steps that must be
executed in order to successfully remove and reinstall a Main Drive Assembly.
Remove the Main Drive Assembly
Follow the instructions in the Service Manual for preparing to remove the Main Drive Assembly
through Step 16, but DO NOT YET REMOVE THE MAIN DRIVE ASSEMBLY ITSELF.
Checking and Realigning Main Drive Assembly Gears
To check for correct alignment of the gears, look through the alignment hole on the right end of the
assembly. Shine a flashlight behind the assembly in order to see if all the holes are lined up as
shown below:
Security Level: HP and Channel Partner Internal Use
Date Written/Updated: 11/22/10
Document Number:
Top Issue: No Top issue date range:
Document keywords: Main Drive Assembly Remove Replace Reinstall Alignment
Document description:
Describes how to ensure Main Drive Assembly part stays in alignment when it has to be
removed and replaced in order to access the Fuser Drive Assembly.
Describes how to realign gears in the Main Drive Assembly should they become
misaligned.
Color LaserJet CP5525 –Removing
and Reinstalling Main Drive
Assembly – Alignment Instructions
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