HP Indigo 7500 Blanket Creep Troubleshooting - Page 9

Pause mode test, Results of first transfer test, front, After 13 minute pause

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Pause mode test Follow these steps for pause mode test. 1. Change the press to Idle. 2. Print one page of a simplex job and pause the press so that the press is idle. 3. Wait 13 minutes, after which the press stops. 4. After the press stops, measure the distance between the edge of the blanket and the edge of the drum (as shown in step Cold start test on page 5 of "Cold start test on page 5" on page 7). 5. Note the measured values of the front and rear. These are the After 13 minute pause values.. 6. After the test, install impression paper and change all the above bypasses to what they were before. 7. Change the following Systab values: ● miscEngineTopic > pauseTImeoutInSec = 180 ● imprEngagePropertiesTopic > warmupSubstrateThickness = 300 (default) ● imprEngagePropertiesTopic > warmupSubstratePressure = 300 (default) ● engineconfigTopic > enableNewPause = True (default) ● bypassTableTopic > impressionEngage = False (default) ● bypassTableTopic > blanketCreepSolution = False (default) Results of first transfer test Fill in the table below with all the data obtained above in order to compare the blanket deformation. Before cold start After cold start Front Rear After 13 minute pause IF: the After 13 minute pause / Front value minus the Before cold start / Front value > 3 mm, =or= the After 13 minute pause / Rear value minus the Before cold start / Rear value > 3 mm, THEN the first transfer probably influenced the blanket creep. Continue with the next procedure ("Checking if second transfer is the source on page 8" on page 10). Pause mode test 7

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Pause mode test
Follow these steps for pause mode test.
1.
Change the press to Idle.
2.
Print one page of a simplex job and pause the press so that the press is idle.
3.
Wait 13 minutes, after which the press stops.
4.
After the press stops, measure the distance between the edge of the blanket and the edge of the
drum (as shown in step
Cold start test
on page
5
of “
Cold start test
on page
5
” on page 7).
5.
Note the measured values of the
front
and
rear
. These are the
After 13 minute pause
values..
6.
After the test, install impression paper and change all the above bypasses to what they were
before.
7.
Change the following Systab values:
●
miscEngineTopic > pauseTImeoutInSec =
180
●
imprEngagePropertiesTopic > warmupSubstrateThickness =
300
(default)
●
imprEngagePropertiesTopic > warmupSubstratePressure =
300
(default)
●
engineconfigTopic > enableNewPause =
True
(default)
●
bypassTableTopic > impressionEngage =
False
(default)
●
bypassTableTopic > blanketCreepSolution =
False
(default)
Results of first transfer test
Fill in the table below with all the data obtained above in order to compare the blanket deformation.
Front
Rear
Before cold start
After cold start
After 13 minute pause
IF:
the
After 13 minute pause / Front
value minus the
Before cold start / Front
value > 3 mm,
=or=
the
After 13 minute pause / Rear
value minus the
Before cold start / Rear
value > 3 mm,
THEN the first transfer probably influenced the blanket creep. Continue with the next procedure
(“
Checking if second transfer is the source
on page
8
” on page 10).
Pause mode test
7