<?xml version="1.0" standalone="yes"?>
<?xml-stylesheet type="text/xsl" href="..\..\XSLTemplates\ErrorsStyleSheet.xsl"?>
<Error>
<ErrorNumber>17693</ErrorNumber>
<ErrorFamily>Exposure Head</ErrorFamily>
<ErrorMessage>
HEAD: Timeout waiting for LASER OK
</ErrorMessage>
<AppliesTo>
<UnnumberedList>
<ListItem><Text>All</Text></ListItem>
</UnnumberedList>
</AppliesTo>
<ServiceInformation>
<DescriptionText><text>
Note that due to a programming error, this error has been defined for both
the green and thermal heads.
</text></DescriptionText>
<DescriptionText><text>
Thermal: Timeout waiting for LASER OK
</text></DescriptionText>
<DescriptionText><text>
While turning on the laser, the laser is "throttled up" gradually to prevent
damage to the thermal head ( the beam-pointing sensors ).  At each step, the
power is expected to settle within five seconds to the desired power level.
</text></DescriptionText>
<DescriptionText><text>
This error generally occurs in the initial ramp up of the laser to the idle
setting. Either the laser is not turning on at all, the power is oscillating
or else the noise level is too high. If you have thermal head version 1.56 it
is easily possible to diagnose the exact problem by using the internal data
collection capabilities (see release notes or head diag0 information). Also
with 1.56 the command "laser test" may diagnose the problem.
</text></DescriptionText>
<DescriptionText><text>
If the laser is not turning on at all then check laser power setpoint, media
selection, and laser mode. Try turning on laser with "laser current" to test
laser itself. Also make sure that the NVS head parameters wkp and wki are not
zero.
</text></DescriptionText>
<DescriptionText><text>
If the problem is oscillation try changing the head wkp and wki parameters to
smaller values.
</text></DescriptionText>
<DescriptionText><text>
Green: NDF actuator did not initialize
</text></DescriptionText>
<DescriptionText><text>
The exposure head's Neutral Density Filter actuator did not initialize properly.
Imaging and other head operations will likely not work properly.  Check all
power supplies on the head.  If these do not seem to be the problem, contact
head integration for advice.
</text></DescriptionText>
</ServiceInformation>
<OperatorAction>
<DescriptionText><text>
Thermal: Record error message and contact Creo Service.
</text></DescriptionText>
<DescriptionText><text>
Note that thermal head firmware version 1.32.6 has been released to handle this
problem with newer thermal heads.  If you have sites experiencing this problem
with earlier thermal head firmware versions please upgrade as soon as
possible.
</text></DescriptionText>
<DescriptionText><text>
Green: Record error message and contact Creo Service.
</text></DescriptionText>
</OperatorAction>
<Cause>
Thermal: Measured power does not match setpoint power.
</Cause>
<Cause>
Green: Head power supplies out of spec.
</Cause>
<Cause>
Green: Actuator mechanism faulty
</Cause>
<SeeAlso>
<UnnumberedList>
<Link><LinkAddress>../commands/laser_on.xml</LinkAddress><LinkTitle>Command: laser on</LinkTitle></Link>
<Link><LinkAddress>../commands/laser_current.xml</LinkAddress><LinkTitle>Command: laser current</LinkTitle></Link>
<Link><LinkAddress>../commands/laser_test.xml</LinkAddress><LinkTitle>Command: laser test</LinkTitle></Link>
<Link><LinkAddress>../nvs/head_cfg_lsrmode.xml</LinkAddress><LinkTitle>NVS: head lsrmode</LinkTitle></Link>
<Link><LinkAddress>../nvs/head_cfg_diag0.xml</LinkAddress><LinkTitle>NVS: head diag0</LinkTitle></Link>
<Link><LinkAddress>../nvs/hdm_cal_wpower.xml</LinkAddress><LinkTitle>NVS: hdm wpower</LinkTitle></Link>
<Link><LinkAddress>../nvs/hdp_cfg_fnm.xml</LinkAddress><LinkTitle>NVS: hdp fnm</LinkTitle></Link>
</UnnumberedList>
</SeeAlso>
<OtherLinks>
<Link><LinkAddress>..\..\ShowAllErrors.htm</LinkAddress><LinkTitle>Firmware 0 Error Index</LinkTitle></Link>
<Link><LinkAddress>..\..\ShowAllCommands.htm</LinkAddress><LinkTitle>Firmware 0 Command Index</LinkTitle></Link>
<Link><LinkAddress>..\..\ShowAllNVS.htm</LinkAddress><LinkTitle>Firmware 0 NVS Index</LinkTitle></Link>
</OtherLinks>
<Updated>
Updated: Wed Jul 16 19:33:41 2008 PST
</Updated>
<Links>
</Links>
</Error>
