HP P2055 Manual

5.Remove the face-down-drive or  duplexing-paper-feed assembly.
CAUTION:Some of the gears and the solenoid arm are not captive (callout 4). Do not lose the
gears or arm when you remove the assembly.
Figure 6-123   Remove the face-down-drive or duplexing-paper-feed assembly (4 of 4)
4
ENWW Internal assemblies 179 

Duplex solenoid; HP LaserJet P2050 Series
1.Remove the following components:
● Right cover. See 
Right cover on page 115
.
● Left cover. See 
Left cover on page 118
.
● Rear cover, rear door, and duplex-paper-feed assembly. See 
Rear cover, rear door, and
duplex-paper-feed assembly on page 120
.
NOTE: Only the HP LaserJet P2050 Series prod ucts have a duplex-paper-feed assembly
installed.
● Top cover assembly. See Top-cover assembly on page 124
.
● Fan. See 
Fan on page 140
.
● Duplexing-paper-feed...

Paper-retaining-delivery assembly
1.Remove the following components:
● Right cover. See 
Right cover on page 115.
● Left cover. See 
Left cover on page 118.
● Rear cover, rear door, and d
uplex-paper-feed assembly. See 
Rear cover, rear door, and
duplex-paper-feed assembly on page 120.
NOTE: Only the HP LaserJet P2050 Series products have a duplex-paper-feed assembly
installed.
● Top cover assembly. See Top-cover assembly on page 124.
● Reverse-sensor assembly. See 
Reverse-sensor assembly; HP LaserJet...

3.Release one tab (callout 4), and then remove one gear (callout 5).
Remove two screws (callout 6), and then release  the wire harness from the guides (callout 7).
Figure 6-126   Remove the paper-retaining-delivery assembly (2 of 6)
4
6
5
7
4.Remove two screws (callout 8).
Figure 6-127   Remove the paper-retaining-delivery assembly (3 of 6)
8
182 Chapter 6   Removal and replacement ENWW 

5.Carefully separate the assembly from the chassis,  and then raise the end of the assembly to release
it.
Figure 6-128   Remove the pape r-retaining-delivery assembly (4 of 6)
6.Slide the assembly toward the formatter side of the product to release it.
Figure 6-129   Remove the pape r-retaining-delivery assembly (5 of 6)
ENWW Internal assemblies 183 

7.Remove the paper-retaining-delivery assembly
Figure 6-130   Remove the paper-retaining-delivery assembly (6 of 6)
184 Chapter 6   Removal and replacement ENWW 

7 Solve problems
To use the information in this chapter, you should have a basic understanding of the HP LaserJet printing
process. Explanations of each mechanical assembly, the product systems, and the basic theory of
operation are contained in 
Theory of operation on page 79 . Do not perform any of these troubleshooting
processes unless you understand the function of each product component.
NOTE:  Unless otherwise noted, all i llustrations depicting the HP LaserJet P2050 Series Printers are
also valid...

Solve general problems
If the product is not responding correctly, complete the steps in the following checklist, in order. If the
product does not pass a step, follow the corresponding troubleshooting suggestions. If a step resolves
the problem, you can stop without performing the other steps on the checklist.
Troubleshooting checklist
1.Make sure the product Ready light is on.  If no lights are on, complete these steps:
a. Check the power-cable connections.
b. Check that the power switch is on.
c. Make...

-or-
Mac OS X: Open Print Center  or Printer Setup Utility , and double-click the line for the product.
9. Verify that you have installed the printer driver for this product. Check the program to make sure
that you are using the printer driver for this product.
10. Print a short document from a different program that  has worked in the past. If this solution works,
then the problem is with the program that you are us ing. If this solution does not work (the document
does not print), complete these...

Basic problem solving
Table 7-1  Basic problem solving
ProblemCauseSolution
When the product is connected to a
correctly grounded power source, the
LEDs on the control panel do not
illuminate and the main motor does not
rotate.
The product does not turn on.No power to the product.1.Verify that the power switch is
turned on.
2. Verify that the power cable is
correctly plugged into the outlet and
the product.
3. Verify that the power outlet has the
correct voltage.
The power inlet/switch cable assembly is...