Uninet iColor LF700, Руководство пользователя

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iColor LF700 Manual Version 3.6
Uninet Copyright 2014
Page 74
LF700
Does Not Read Reg marks Correctly.
It is important to find out what your machines sensor reads as a Black reg mark and the white label.
To do this,
1. Press the menu button when on the main screen (shows the speed and knife pressure).
2. Press the up button to show ‘SYSTEM SETUP’ it shows ‘DIN A4 TEST’
3. Press the Up button to show ‘OPOS SENSOR’ this option enables you to manually move the cutter head
over the reg mark with the OPOS lowered to the media, this will give you the read value of your sensor.
It is a good idea to try this on several reg marks to find an average value for both the black and while areas.
Be aware that media will play its part in the values read.
The OPOS sensor should be reading the white media on average around <500 and the black >1700, anything
higher then the sensor tolerances should be changed.
LF700 registration sensor operation
When the sensor reads the media it is looking to find a white reading first, the sensor continues to read the
media as it moves over the reg mark, at this point the read value shoots up until a preset value is reached.
This trigger point is determined by the ‘CAL MEDIA’ setting, this is set to 100 on all
LF700
’s as default.
The CAL media value is multiplied by 80 to give what is the trigger point when reading the black mark,
If the white media read value is around 500 and the ‘Media CAL’ value is set to 100 (800 points) then the
trigger point is 1300 and is inside of the black reg mark read value of say 1900.
When the ‘Media CAL’ value is too low then he cutter can pick up on ‘phantom’ reg marks, this is where
the sensor reading rises and falls when reading the white media and reaches the trigger point signalling to
the
LF700
that it has found the reg mark. The cut will then be off register.
If the ‘Media CAL’ value is too high then the trigger point will never be reached and results in ‘Mark not
found’ message.
Changing the ‘Media CAL’ value will require the OPOS to be re-calibrated.
If problems persist try reducing the cAL media to 50 or 60, If this works you will have to re-calibrate the
OPOS sensor.
The
LF700
reg mark sensor is also affected by dust and debris from the environment and cutting process,
the sensor should be cleaned daily or after any production run. The sensor should be gently cleaned using
a compressed air canister and lens cloth.