Installation manual

1 OF 2
MFP
TT-20394
Models:
MX-M623N/MX-M753N/MX-M623U/MX-M753U
Priority:
Medium
Date:
February 2012
Subject:
Automatic Copy and Printer Calibration
Details:
Please see below and on the following page for instructions on how to perform the
Automatic Copy and Printer Calibration
Note: Automatic Copy and Printer calibration should be performed under the following conditions:
1. At installation.
2. At Preventive Maintenance.
3. When process or consumable components have been replaced, such as Drum, Transfer belt, MC
Unit, Transfer roller, Fuser Rollers, LSU, or PCS sensor.
4. When firmware has been upgraded.
5. If U2-xx error has been cleared using Simulation 16.
6. If CCD Gamma has been adjusted, especially after cleaning or replacing scanner components.
7. After replacing the MFP, Scanner, or PCU control PWBs or their EEPROMs.
8. Upon the completion of a routine service call.
Machine Set up: The MFP must be adjusted properly to ensure accuracy of the calibration. These
adjustments must be done at Installation and Preventive Maintenance. Please refer to the Installation
Manual and the Adjustment section of the Service Manual.
Before Calibration: Perform the Copy Quality and Density Check
To ensure accuracy, check the following before performing Automatic Copy and Printer Calibration:
1. Optics. Make sure all optics are cleaned, and calibrate the CCD Gamma as outlined in ADJ 9-A and
ADJ 9-B of the Service Manual.
2. Clean the MC Unit using the cleaning rod. Clean at least three times.
3. Perform the high density image correction forcibly using Simulation 44-6.
4. Perform the half-tone image correction forcibly using Simulation 44-26.
Note: After replacing Drum or Developer, reset halftone gamma using Simulation 44-27 before
running 44-26.
5. When Simulations 44-6 and 44-26 are completed without errors, exit the Simulation mode by
pressing the CA key.
6. Confirm Copy Quality by making a copy of the Color Test Chart (UKOG-0326FC11).
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