HP P 1100 Service Manual

2.Remove four screws (callout 1), the scanner cover (callout 2) and the sheet-metal plate (callout 3).
NOTE: The scanner cover and plate are removed as one assembly.
TIP:When the cover is reinstalled, make sure that the black screws (callout 4) are installed in
the correct screw holes.
Figure 2-55  Remove the main motor (2 of 7)
1
23
4
3. Release two tabs (callout 1), and then slightly separate the motor driver PCA (callout 2) from the
product.
CAUTION: The motor driver PCA is still connected to the...

4.Disconnect two connectors (callout 1) and carefully set the PCA out of the way.
CAUTION: The motor driver PCA is still connected to the product by the FFC.
Figure 2-57  Remove the main motor (4 of 7)
1
5.Release the wire harness (callout 1) from the guide (callout 2).
Figure 2-58   Remove the main motor (5 of 7)
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2
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6.Remove one screw (callout 1), and then remove the motor cover (callout 2).
Figure 2-59   Remove the main motor (6 of 7)
1
2
7.Remove two screws (callout 1), and then remove the motor (callout 2).
Figure 2-60  Remove the main motor (7 of 7)
2
1
ENWW Main assemblies 75 

Reinstall the main-motor drive belt
▲When the main motor is reinstalled, make sure that the drive belt (callout 1) is correctly positioned
over the roller (callout 2).
Figure 2-61  Main-motor drive belt: correctly installed
1
2
Figure 2-62  Main-motor drive belt: incorrectly installed
1
2
76 Chapter 2   Removal and replacement ENWW 

Pickup solenoid
Before proceeding, remove the following components:●Input tray or main-input tray. See 
Input tray or main-input tray on page 40
.
● Output bin tray extension. See 
Output bin tray extension on page 41
.
● Front cover. See 
Front cover on page 42.
● Left cover. See 
Left cover on page 43.
● Right cover. See 
Right cover on page 46
.
● Cartridge door assembly. See 
Cartridge door on page 48
● Face-down cover. See 
Face-down cover on page 50
.
● Rear cover. See 
Rear cover on page 52
.
●...

2.Remove one screw (callout 1), and then remove the sheet-metal plate (callout 2).
Figure 2-64   Remove the pickup solenoid (2 of 5)
1
2
3.Disconnect one connector (callout 1), and then release the wire harness (callout 2) from the guide
(callout 3).
Figure 2-65   Remove the pickup solenoid (3 of 5)
3
1 2
78 Chapter 2   Removal and replacement
ENWW 

4.Release the wire harness (callout 1) from the guide (callout 2).
Figure 2-66  Remove the pickup solenoid (4 of 5)
1
2
5. Remove one screw (callout 1), and then remove the pickup solenoid (callout 2).
Figure 2-67  Remove the pickup solenoid (5 of 5)
1
2
ENWW Main assemblies 79 

Engine controller PCA
NOTE:Some photos in this section show a product similar to the HP LaserJet Professional P1100
Printer series or the HP LaserJet Professional P1100w Printer series, however the procedures for
replacement and repair in this section are correct for your product.
Before proceeding, remove the following components:
●Input tray or main-input tray. See 
Input tray or main-input tray on page 40.
● Output bin tray extension. See 
Output bin tray extension on page 41.
● Front cover. See...

2.Remove one screw (callout 1), and then remove the sheet-metal plate (callout 2).
Figure 2-69  Remove the engine controller PCA (2 of 8)
1
2
3.Disconnect one connector (callout 1), and then release the wire harness (callout 2) from the guides
(callout 3).
Figure 2-70  Remove the engine controller PCA (3 of 8)
1
2
3
ENWW Main assemblies 81 

4.Disconnect four connectors (callout 1), and then remove the wire harnesses (callout 2) from the
guide (callout 3).
Figure 2-71   Remove the engine controller PCA (4 of 8)
1
3
1
5.Release the wire harness (callout 1) from the ground spring (callout 2).
Figure 2-72   Remove the engine controller PCA (5 of 8)
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82 Chapter 2   Removal and replacement ENWW