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HP LaserJet Quick Reference Service Manual Page 271

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Duplex Jamming: Duplex Drive Roller
Assembly
Associated Part Numbers:
RG1-1345-060CN
Description:
The lower and upper duplex guide assemblies (figures
8-24 and 8-25 in the IID/IIID service manual) are used to properly
position the paper left-to-right prior to its passing a second time through
the printer. When this is performed, the leading edge of legal-sized
paper may buckle slightly, causing it to dive between the lower duplex
guide and the duplex drive roller assemblies
(figures 8-24 and 8-26 in the IID/IIID service manual).
A clear plastic strip was attached to the drive assembly to prevent paper
from diving into the gap between these assemblies. With use, a slight
nick may develop in this plastic strip, leading to paper jams. If such a
nick is the cause of a jamming problem, it can be felt with your
fingernail.
9
Solution:
This problem was fixed by extending the metal base of the
duplex drive roller assembly, thus alleviating the need for the plastic
strip. The part number of this new assembly is RG1-1345-060CN. If
paper is jamming in the duplexer just prior to the duplex drive roller
assembly, install a new assembly.
Technical Tips – 269
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