Hitachi HT-4139-28 Maintenance Manual page 51

REV0 2010.02.15
7.8.4 Display of calibration information
Display the results of measurement. (Device unique data)
7.8.4.1 Photo Amplifier
NOTE: G (Gain), L2 (Dark Level), L3 (Blight Level), Ls (Slice Level)
Ls is the slice level for the judgment and determined with L2 and L3.
Check Item
L3 (Blight Level)
L2 (Dark Level)
If results are out of criteria, cleaning and/or replacement might be required.
7.8.4.2 PC22N
NOTE: G (Gain), L1 (Blight Level), L0 (Blight Level), Ld (Level w/ paper), M (Measured
MO (Reference transmissivity),
Check Item
N(Results)
If results are out of criteria, cleaning and/or replacement of the PC22 might be required.
-H7-18-
(1) Specify parameters and click the "RUN" button.
･Input/Output file name: RX8_GAKU.OCR
･Input mode : OCR Scanner
･Output mode : Not exists
[Photo Amplifier]
Photo information to detect sheet.
Photo Number
PC11,20,21,31,41,42,43,51,52
PC22
PC22(DBL)
PC11,20,21,31,41,42,43,51,52
PC22
PC22(DBL)
PC22:
Device unique factor for detection of dual feeding by
light intensity.
N (Measurement results)
Criteria
0.5 ~ 2.0 (Normal 1.0)
Criteria Note
20 ~ F0
30 ~ FF
30 ~ FF
00
01 ~ 30
01 ~ 30
transmissivity),