HP LaserJet II Serie Manual De Instrucciones página 217

HP 33440/HP 33449 COMBINED SERVICE MANUAL
Table 7-20. "41 ERROR" Checks
2.
Is the EP-S Cartridge defective?
3.
Is the Transfer Corona clean?
4.
Is the Transfer Corona Roller grounding
block positioned properly so as to provide a
ground path to the roI1er?
5.
Does the Registration Assembly float
with respect to ground when the Top Cover
Assembly is closed?
6.
Are the *O 15 Mohm resistors and/or the 1
kohm resistor under the Registration Assembly
open?
7.
Is jumper J209 instiled on the DC
Controller PCA?
8.
Is static electrici~ a problem?
9. Does the error persist?
,-. .
AC~ON
=.."-.
Thoroughly clean the Feed Guide Assembly.
Replace the EP-S Cartridge and retest the
printer.
Physidly remove the Transfer Corona
Assembly and clean thoroughly or replace if
necessary. Clean the base of the printer below
the Transfer Corona.
Veri& proper instigation as in Figure 6-30 in
Chapter 6.
Veri& that the ground defeat tib on the EP-S
Cartridge (Figure 7-19) is not damaged. With
the ground defeat lever on the right side of the
Registration Assembly (FiWre 7-14) pushed
down, resistance between the Registration
Assembly and ground should be 15 Mohm (*
5%). If the resistance is less than 15 Mohm,
ensure the Registration Assembly is properly
installed and clean as necessary to resolve the
problem.
Perform a resistance check. Note that in order
to measure the 15 Mohm resistors with a
standard 4; digit DVM on the "kohm)' smle,
the two resistors may have to be measured in
parallel at 7,500 kohm *5%.
Veri@ and instil if necessary.
Verify humidity to be at least 20% RH.
Refer to the "5 I ERROR Beam Detect Checks"
tible which follows (Table 7-21).
7-53