Hitachi HT-4139-28 Maintenance Manual page 31

Caution: In case of failure that could not be adjusted by the Auto Calibration, investigate the causes and fix the issue
to pass the Auto Calibration, or the device will not work normally.
Caution: If the Test Sheet is REJECTED check the DIRECTION OF THE SHEET for each test.
(11) When the Left Screen pops up, set Paper in the
PORTRAIT position.
(12) Press "Yes". The "Feeding Speed" Test will Start.
CAUTION: MAKE SURE THE DIRECTION OF
THE PAPER IS THE SAME AS THE
PICTURE BELOW
(13) "Feeding Speed" Test is Running
(14) When the Left Screen pops up, it will show the
Results of the Auto Calibration
(15) Scroll down the slide bar and check the results of the
Auto Calibration for the "Photo Amplifier", the
"PC22N", the "UltraSonic Sensor", the "Hardware",
and the "Sheet Feeding Speed" and confirm that all
Results are "OK"
(16) If the Results are "OK" the test is finished.
Press "Confirmed"
REV0 10.02.15
-H6-3-