HP P2055 Manual

Reinstall the cartridge-door assembly and front cover
Use this procedure if you are installing a replacement cartridge-door assembly.
1. Release two tabs (callout 1).
Figure 6-47   Reinstall the cartridge-door assembly and front cover (1 of 2)
2.Remove the cartridge-door link (callout 2), and  then install it on the replacement assembly.
Figure 6-48   Reinstall the cartridge-door assembly and front cover (2 of 2)
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ENWW External panels, covers, and doors 129 

Internal assemblies
WARNING!Turn the product off, wait 5 seconds, and then  remove the power cord before attempting
to service the product. If this warning is not followe d, severe injury can result, in addition to damage to
the product. The power must be on for certain functional checks during problem solving. However, the
power supply should be disconnected during parts removal.
Formatter PCA; HP LaserJet P2030 Series
WARNING! ESD sensitive component.
1. Remove the left cover. See Left cover on page...

3.Remove three screws (callout 3), an d then remove the formatter PCA.
Figure 6-50   Remove the formatter PCA; HP LaserJet P2030 Series (2 of 2)
3
4
Reinstallation tip To correctly position the PCA during reinstallation, install the top screw first (callout
4).
ENWW Internal assemblies 131 

Formatter PCA; HP LaserJet P2050 Series
WARNING! ESD sensitive component.
1.Remove the left cover. See Left cover on page 118.
2. Disconnect two connectors (callout 1) and two FFCs (callout 2).
CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also,
do not straighten pre-folds in the FFCs. You  must make sure that all FFCs are fully seated in their
connectors. Failure to fully seat an FFC into a connector can cause a short circuit in a PCA.
Figure 6-51   Remove...

Reinstallation tipTo correctly position the PCA during reinstallation, install the top screw first (callout
4).
ENWW Internal assemblies 133 

Paper-pickup-gear assembly
1.Remove the left cover. See Left cover on page 118.
2. Remove four screws (callout 1).
Figure 6-53   Remove the paper-pickup-gear assembly (1 of 3)
1
3.Slightly separate the top-cover  assembly from the chassis, and then remove the black-plastic
bracket (callout 2).
Figure 6-54   Remove the paper-pickup-gear assembly (2 of 3)
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134 Chapter 6   Removal and replacement ENWW 

4.Release one tab (callout 3), and then remove  the paper-pickup-gear assembly (callout 4).
CAUTION:Be careful when you remove this assembly. The outer gear and spring can easily
become separated from the inner gear. If the gear s become separated, make sure that you do not
lose the spring. See 
Reinstall the paper-pickup-gear assembly on page 135.
Figure 6-55   Remove the paper-pickup-gear assembly (3 of 3)
34
Reinstall the paper-pickup-gear assembly
Use the following procedure to reassemble the ou ter...

2.Slip the loose end of the spring into the cavity in the inner gear.
Figure 6-57   Reinstall the paper-pickup-gear assembly (2 of 3)
3.Press the two gears together until the gears snap together.
TIP: To test the assembly, hold the inner gear a nd rotate the outer gear away from you until it
stops (slightly less than one-third of a full rotati on). Release the outer gear. The spring should return
the outer gear to its starting position.
Figure 6-58   Reinstall the paper-pickup-gear assembly (3 of 3)
136...

Cartridge-door switch
1.Remove the left cover. See Left cover on page 118.
2. Disconnect one connector (callout 1), release three  tabs (callout 2), and then remove the switch.
Figure 6-59   Remove the cartridge-door switch
2
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ENWW Internal assemblies 137 

Tray 1 pickup solenoid
1.Remove the left cover. See Left cover on page 118.
2. Disconnect one connector (callout 1), and then release the wire harness from the retainers
(callout 2).
Figure 6-60   Remove the Tray 1 pickup solenoid  (1 of 2; HP LaserJet P2030 Series)
1
2
Figure 6-61  Remove the Tray 1 pickup solenoid  (2 of 3; HP LaserJet P2050 Series)
1
2
138 Chapter 6   Removal and replacement ENWW