HP LaserJet 6p/mp Service Manual - Page 126

Heating element resistance check, Table 7-3, Service and error messages Continued 2 of 3, Beam Error

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Figure 7-3 Heating element resistance check Table 7-3 Service and error messages (Continued 2 of 3) Beam Error. There are a number of 1. Power-cycle the printer by causes for this error, and some of unplugging the printer and plugging the causes may be transient. (They it back in. may disappear.) 2. Make certain the Laser/Scanner Assembly is correctly seated on the printer chassis. 3. Replace the Laser/Scanner cable (J208 on the DC Controller). 4. Replace the Laser/Scanner Assembly. Engine Error. The formatter and engine are not communicating. 5. Replace the DC Controller PCA. 1. Power-cycle the printer by unplugging the printer and plugging it back in. If this doesn't clear the error: 2. Reseat Formatter to DC Controller PCA. 3. Replace the Formatter PCA4. Replace the DC Controller PCA. 124 Troubleshooting EN

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124
Troubleshooting
EN
Figure
7-3
Heating element resistance check
Table 7-3
Service and error messages (Continued 2 of 3)
Beam Error
. There are a number of
causes for this error, and some of
the causes may be transient. (They
may disappear.)
1. Power-cycle the printer by
unplugging the printer and plugging
it back in.
2. Make certain the Laser/Scanner
Assembly is correctly seated on the
printer chassis.
3. Replace the Laser/Scanner cable
(J208 on the DC Controller).
4. Replace the Laser/Scanner
Assembly.
5. Replace the DC Controller PCA.
Engine Error
. The formatter and
engine are not communicating.
1. Power-cycle the printer by
unplugging the printer and plugging
it back in. If this doesn’t clear the
error:
2. Reseat Formatter to DC Controller
PCA.
3. Replace the Formatter PCA4.
Replace the DC Controller PCA.