HP P 1100 Service Manual

6.Disconnect two connectors (callout 1) and two FFCs (callout 2).
Figure 2-73  Remove the engine controller PCA (6 of 8)
1
2
7.Remove one screw with washer (callout 1), and then remove one more screw (callout 2).
Figure 2-74  Remove the engine controller PCA (7 of 8)
1
2
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8.Remove three screws with washers (callout 1), and then remove the engine controller PCA (callout
2).
Figure 2-75   Remove the engine controller PCA (8 of 8)
1
2
Reinstall the engine controller PCA
NOTE:
Follow these steps to correctly install the transfer-wire harness.
1.Set the ground spring (callout 1) on the transfer-wire harness (callout 2).
Figure 2-76   Reinstall the engine controller PCA (1 of 4)
2
1
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ENWW 

2.Position the transfer-wire harness (callout 1) in the guide (callout 2).
Figure 2-77  Reinstall the engine controller PCA (2 of 4)
1 2
3.
Connect one connector (callout 1).
Figure 2-78  Reinstall the engine controller PCA (3 of 4)
1
ENWW Main assemblies 85 

4.Position the transfer-wire harness (callout 1) in the guides (callout 2).
Figure 2-79   Reinstall the engine controller PCA (4 of 4)
1 2
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ENWW 

3 Solve problems
●Solve problems checklist
●
Troubleshooting process
●
Tools for troubleshooting
●
Clear jams
●
Solve paper-handling problems
●
Solve image-quality problems
●
Clean the product
●
Solve performance problems
●
Solve connectivity problems
●
Service mode functions
●
Product updates
ENWW 87 

Solve problems checklist
Table 3-1  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 formatter is defective.Replace...

ProblemCauseSolution
The product turns on, the
motor rotates, and the control
panel indicates the ready
state, but the product does not
print.
The product does not print.A component is defective.Perform an engine test to
verify print-engine
components.
1.
Print an engine test
page. See 
Engine-testbutton on page 93.
2. If the engine test page
does not print, check all
the connectors on the
engine controller PCA,
and reconnect any
cables that are
connected incorrectly.
3. If, after checking the...

ProblemCauseSolution
The product prints the engine
test or the configuration page
(HP LaserJet Professional
P1100w Printer series only),
but does not print jobs from a
computer.
The product does not print
from a computer.The cable is not connected
correctly.Reconnect the cable.
Try using a new USB cable
that is 3 m (10 ft) or less in
length.
For the HP LaserJet
Professional P1100w Printer
series, the wireless
connection has been lost.See Solve wireless problems
on page 130.
An incorrect driver is...

Troubleshooting process
Determine the problem source 
The following table includes basic questions to ask the customer to quickly help define the problem or
problems.
General topicQuestions
Environment●Is the product installed on a solid, level surface (± 1°)?
● Is the power-supply voltage within ± 10 volts of the specified power source?
● Is the power-supply plug inserted in the product and the outlet?
● Is the operating environment within the specified parameters?
● Is the product exposed to ammonia...

Power subsystem
Power-on checks
Turn on the power. If the control-panel LEDs do not illuminate, perform the power-on checks to find the
cause of the problem.
1.Verify that the product is plugged into an active electrical outlet that delivers the correct voltage.
2. Verify that the power switch is in the on position.
3. Make sure that the product makes the expected start-up sounds.
NOTE: The overcurrent/overvoltage protection circuit in the low-voltage power supply unit might
be functioning. Turn the...