Receiver Loading
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| Problem description |
The Receiver is not properly attached to the
drum. |
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| Error |
The drum vacuum pressure is below the minimal
value allowed (read: xxx, min: yyy) - possibly receiver not loaded correctly |
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| Cause |
- The Receiver is not loaded correctly.
- The Drum Vacuum Pressure value is too low.
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| Solution |
- The Receiver is not loaded correctly.
- Verify that the Receiver is inside the blue tape border, marked
on the Carrier.
- If the Receiver is inside the blue tape border, make sure it
has not shifted and that it covers the vacuum holes on the Carrier.
- If the Receiver has shifted, make sure that the proofing tray
is positioned correctly on the upper tray of the DLC and that the
media is positioned correctly in the proofing tray.
- The Drum Vacuum Pressure is too low.
- After loading the Receiver, check the Drum Vacuum Analog Detector
(Hardware>Drum System>Drum Detectors)
to confirm that the minimum Drum Vacuum Pressure value is
in the range of ~-550 to -730.
- If the minimum Drum Vacuum Pressure value is not within
the allowed range, change it to a value within the allowed range.
- If the minimum Drum Vacuum Pressure value is within the
allowed range, decrease the current minimum value by 40.
- Define the results in the registry under Load Blanket>Load
Proof-Min Drum Vacuum Pressure For Receiver
For example, if the value was -690, reduce the value to -650
and define it in the registry.
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Lotem 800 Spectrum Beta 4 and Lotem 800 Quantum Spectrum
3.50.07
Drum Vacuum Pressure Checks for Proof Media
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When to check
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What to check
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Duration of check
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| Loading |
| Carrier |
- When Carrier is completely wrapped on drum
- When Receiver is attached to Proof Loading Bar
|
Value is within the drum vacuum pressure range defined
in the registry for Carrier on drum. |
- Maximum 30 seconds, polling every (1) second
- One second
|
| Receiver |
When Donor is attached to Proof Loading Bar |
Value is equal to or greater than the minimum Drum
Vacuum Pressure defined in the registry for Receiver on drum. |
One second |
| Donor |
When Donor is completely wrapped on drum |
Value is equal to or greater than the minimum Drum
Vacuum Pressure defined in the registry for Donor on drum. |
Maximum 30 seconds, polling every (1) second |
| Unloading |
| Receiver |
- Before detaching Receiver with the Proof Unload Arm from the
drum
- After shutting off drum vacuum
|
Value is below the maximum Drum Vacuum Pressure defined
in the registry for Receiver unload |
Maximum 30 seconds, polling every (1) second |
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Technical contact(s)
|
Meir Dana |
Submitted by
|
Meir Dana |
Date submitted
|
07 Jan 2002 |
