8. Adjusting Reading Sensitivity
Although the mark reading sensitivity of this device is set to level 4 by default, it can be changed so as not
to read stains as marks when particularly stained cards are read.
(1) Open the top cover of the device to turn SW2.
In SR-450 (SR-410/430 compatible) mode
Turn SW2 to level 1 to maximize the reading sensitivity.
Turn SW2 to level 0 to minimize the reading sensitivity.
IN SR-305(SR-305S)/SR-307 compatible mode
Turn SW2 to level 1 to maximize the reading sensitivity.
Turn SW2 to level 8 to minimize the reading sensitivity.
For SW2, use level 1 to 8 and do not use level 0, 9 to F.
(2) When adjusting the sensitivity, fill in marks with different densities (line width or thickness) on mark
cards to test reading. Check and adjust filled marks and the reading sensitivity level using SW2.
(3) Functions of SW2
SR-450 (SR-410/430 compatible) mode
SR-305(SR-305S)/SR-307 compatible mode
Note
"
" refers to the default setting.
Reference detection density data of each level differs between the SR-450 (SR-410/430
compatible) and SR-305(SR-305S)/SR-307 compatible modes.
8.Adjusting Reading Sensitivity
SW2: Adjusts sensitivity.
9. Control Commands
This device operates according to command signals sent from the host computer. Control commands and
data are all sent and received in ASCII codes.
9-A Initialize Commands
The following commands are used to change the status of the device immediately after the power is
turned on:
-1 Kinds of Initialize Commands
9.Control Commands
-2 DLE DL Command (Reading Sensitivity Setting Command)
[Explanation]
This command is for setting the reading sensitivity level.
16 levels corresponding to density levels 1 to 16 can be set.
For example, a mark of density level 2 or more is read when "02" is set.
The setting of the rotary switch is enabled when the power is turned on while software is prioritized
when a DL command is used.
This setting is not stored after the power is turned off.
* This applies to when the CAN command is executed.
In the SR-307 compatible mode, the density levels are 1 to 8.
[Format]
DLE
D
L
N1 N2
CR
(10H) (44H) (4CH)
(0DH)
N1N2: 2-byte ASCII code
- 26 -
Summary of Contents for SR-450
Page 29: ...No clearance but cards are not aligned Clearance OK NG 5 Operation Good No good 17...
Page 50: ...38...
Page 51: ...N1N2N3 and M1M2M3 cannot be omitted as 6 byte fixed length data 39...
Page 52: ...N1N2N3 and M1M2M3 cannot be omitted as 6 byte fixed length data 40...
Page 53: ...41...
Page 54: ...N1N2N3 and M1M2M3 cannot be omitted as 6 byte fixed length data 42...
Page 55: ...Example 9 8 7 6 Mark position Mark Reading density 10 2 6 7 43...
Page 56: ...44...
Page 57: ...45...
Page 58: ...46...
Page 59: ...47...
Page 60: ...For error statuses see 9 B 2 48...
Page 62: ...50...
Page 66: ...12 External Views 360 2 2 2 1 7 1 695 12 External Views Unit mm 54...
Page 70: ...13 Appendix Timing mark direct under type General tolerance 0 20 Unit mm Mark frame 58...
Page 71: ...13 Appendix Timing mark control type General tolerance 0 20 Unit mm Mark frame 4 17 59...
Page 72: ...13 Appendix Timing mark to mark type General tolerance 0 20 Unit mm Mark frame 60...
Page 73: ...13 B Code Tables 1 ASCII code 2 ASCII decimal notation correspondence table 13 Appendix 61...
Page 74: ...3 EBCDIC punch code ASCII code correspondence table 13 Appendix 62...