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HP Color LaserJet Enterprise MFP M577 - Removal and replacement: Intermediate transfer belt (ITB)

Introduction
This document provides instructions about removing and replacing the intermediate transfer belt (ITB) assembly.
Before performing service
Turn the printer power off
  • Disconnect the power cable.
      warning:
    To avoid damage to the printer, turn the printer off, wait 30 seconds, and then remove the power cord before attempting to service the printer.
To order a replacement assembly, use the table below to identify the correct part number for your printer. To order the part, go to www.hp.com/buy/parts
Intermediate transfer belt part number
RM2-6560-000CN
Intermediate transfer belt assembly
Required tools
No special tools are required to install this assembly.
After performing service
Make sure that the right door is fully closed after replacing the ITB.
Turn the printer power on
  • Connect the power cable.
  • Use the power switch to turn the power on.
Post service test
Print a configuration page to make sure that the printer is functioning correctly.
Step 1: Remove the ITB
  caution:
Do not touch the grey-plastic belt. Skin oils and fingerprints on the belt can cause print-quality problems.
  1. Open the right door.
    Figure : Open the right door
  2. Pull the blue lever to release the ITB drive coupling.
    Figure : Release the ITB drive coupling
  3. Push in on the blue arm to release the secondary transfer roller assembly, and then completely lower the assembly.
      note:
    Press the blue arm on the secondary transfer roller assembly a second time to release the roller assembly when it stops at the halfway open position.
    Figure : Lower the secondary transfer roller assembly
  4. Release the left-side ITB spring (callout 1) from the tab (callout  2).
    Figure : Release the front-side ITB spring
  5. Place the left-side ITB spring on the holder to keep it out of the way.
      note:
    The holder is colored blue to help locate it.
    Figure : Place the spring on the holder
  6. Release the right-side ITB spring (callout 1) from the tab (callout  2).
    Figure : Release the rear-side ITB spring
  7. Place the right-side ITB spring on the holder to keep it out of the way.
      note:
    The holder is colored blue to help locate it.
    Figure : Place the spring on the holder
  8. Grasp the two blue handles on the ITB.
      caution:
    If the ITB is removed to access other assemblies in the printer, use care. The ITB is a sensitive assembly. Be careful when handling the ITB so that it is not damaged. Always place the ITB in a safe and protected location.
    Figure : Grasp the ITB handles
  9. Pull the ITB out of the printer to remove it.
      caution:
    Do not touch the grey-plastic belt. Skin oils and fingerprints on the belt can cause print-quality problems.
    Figure : Remove the ITB
Step 2: Unpack the replacement assembly
Unpack the replacement assembly from the packaging.
  caution:
Make sure that all of the packing materials and tape is removed from the replacement ITB. The ITB might be damaged if packing materials are in place when the printer power is turned on.
For complete information on HP's recycling programs, go to Product return and recycling.
  note:
HP recommends responsible disposal of the defective assembly.
Recycle and unpack
Figure : Recycle and unpack
Step 3: Install the ITB
  caution:
Do not touch the grey-plastic belt. Skin oils and fingerprints on the belt can cause print-quality problems.
  1. Hold the ITB by the orange handles.
    Figure : Handle the ITB by the edges
  2. Align the ITB with the slots in the printer, and then carefully push it into the printer.
      note:
    Be careful. Do not dislodge the ITB retainer springs from the holders on the chassis. The springs can interfere with installing the ITB.
    Figure : Align the ITB with the slots in the product
  3. Continue to carefully push the ITB into the printer until it the orange handles stop it.
    Figure : Orange handles stop
  4. Release one tab (callout 1).
    Figure : Release one tab
  5. Remove the orange handle. Repeat this step for the remaining orange handle.
      note:
    HP recommends recycling the plastic handles.
    Figure : Remove the orange handle
  6. Continue to carefully push the ITB into the printer until it is fully installed.
    Figure : Install the ITB
  7. Remove the right-side ITB spring from the holder.
    Figure : Remove the spring from the holder
  8. Fasten the right-side ITB spring (callout 1) under the tab (callout  2).
    Figure : Fasten the rear-side ITB spring
  9. Remove the left-side ITB spring from the holder.
    Figure : Remove the spring from the holder
  10. Fasten the left-side ITB spring (callout 1) under the tab (callout  2).
    Figure : Fasten the front-side ITB spring
  11. Push in the blue lever to engage the ITB drive coupling.
      note:
    If the ITB drive coupling is not fully engaged, the right door will not properly close.
    Figure : Engage the ITB drive coupling
  12. Close the right door.
      note:
    The right door should close easily if the ITB assembly is correctly installed.
    Figure : Close the right door

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