Preparation - Hitachi HT-4139-28 Maintenance Manual

6 OCR Scanner Auto Calibration
The Auto Calibration checks the Photo Amplifier, the PC22N, the UltraSonic Sensor, the
Hardware(Image Distortion Check), and the Sheet feeding speed with one simple operation.
*Preparation: You need to have at least 21 Test Sheets (040-7-4) which is included in the device package.
6.1 Procedure for Auto Calibration
Run the software "Scanner Maintenance".
1 Press "START" button
2 Press "All Programs"
3 Select "HT-4139 Image Scanner"
4 Select "Scanner Maintenance"
(1) "Date of measurement": Date is transferred from the
PC and displayed on the screen automatically.
(2) "Number of sheets for measurement": Put "5" for
this.
(3) DO NOT PUT ANY SHEETS ON THE TRAY
FOR THE "PHOTO AMPLIFIER" TEST
(4) Press "RUN" Button. The Photo Amplifier Test will
Start
(5) The "Photo Amplifier" Test is Running
REV0 10.02.15
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