C9148-90909 4 Maintenance 39
User-replaceable parts
Replacing user-replaceable parts
To ensure that the product maintains optimal performance, replace certain parts when the
Perform Printer Maintenance message appears on the product control-panel display.
The maintenance message appears every 200,000 pages (default setting). To check the number
of pages the product has printed, either print a configuration page or a supplies status page. See
“Evaluate the information pages” on page 130.
Hint To order a print-unit maintenance kit, see the HP LaserJet 4100 series printer service manual.
Note Unless they are damaged, the ADF pickup roller, separation roller, and separation pad should not
need to be replaced.
Table 7. User-replaceable parts
MFP Item Procedure Interval
ADF unit See “ADF unit” on page 78. User replaceable. As
required.
ADF input tray See “ADF input tray” on page 73. User replaceable. As
required.
ADF delivery guide
(clear mylar strip)
See the removal step in “Cleaning the
ADF delivery guide (clear mylar strip)” on
page 37.
User replaceable. As
required.
ADF pickup roller See “ADF pickup roller” on page 74. User replaceable. As
required.
ADF separation roller See “ADF separation roller” on page 76. User replaceable. As
required.
ADF separation pad See “ADF separation pad” on page 77. User replaceable. As
required.
ADF separation assembly
compression spring
See “ADF separation pad” on page 77
and “ADF unit (2 of 2)” on page 160.
User replaceable. As
required.
ADF pick/feed cover See “ADF separation pad” on page 77
and “ADF unit (2 of 2)” on page 160.
User replaceable. As
required.
ADF delivery guide holder (clear
mylar sheet holder)
See the step in “Cleaning the ADF
delivery guide (clear mylar strip)” on
page 37 and “ADF unit (1 of 2)” on
page 158.
User replaceable. As
required.
ADF face-up bin handle See “Covers” on page 148. User replaceable. As
required.
5GB hard disk drive To locate the hard drive, see “Back view”
on page 21.
User replaceable. As
required.
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