Diagnostic information
2-53
5022-xxx
Operator panel service check
Warning: When replacing any one of the following components:
•
Operator panel assembly
•
System card
•
Printhead assembly
Only replace one component at a time. Replace the required component, and perform a POR before
replacing a second component listed above. If this procedure is not followed, the printer will be
rendered inoperable.
Warning:
Never install and remove components listed above as a method of troubleshooting
components. Once a component has been installed in a printer, it cannot be used in another
printer. It must be returned to the manufacturer.
One or more operator panel buttons fail
Operator panel display blank, five beeps, and LED off
Service tip: The printer has detected a problem with the system card, the operator panel assembly cable (part of
the top cover access assembly), or the operator panel assembly if POST does not complete. The printer emits
five beeps, and sticks in a continuous pattern until the printer is turned off.
Step
Questions / actions
Yes
No
1
Run the Button Test. See
“Button Test” on
page 3-11
in Diagnostics mode.
Did any of the buttons fail the test?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
.
Go to step 2.
2
Disconnect the operator panel assembly cable
from JOPP1 on the system card, and measure
the voltage on pin 6 and ground.
Does the voltage measure approximately
+3.3 V dc?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
. If this does
not fix the problem, replace
the top cover access
assembly. See
“Top access
cover assembly removal—
model C52x only” on
page 4-28
or
“Top access
cover assembly removal—
model C53x only” on
page 4-32
.
Replace the system card.
See
“System card
removal” on page 4-92
.
Step
Questions / actions
Yes
No
1
Is the operator panel assembly cable properly
installed at system card JOPP1 and at the
operator panel assembly?
Go to step 2.
Reinstall the cable.
2
Measure the voltage between JOPP1 pin 2
and ground on the system card.
Is the voltage approxi5 V dc?
Go to step 3.
Replace the system card.
See
“System card
removal” on page 4-92
.
3
Check continuity of the operator panel
assembly cable.
Is there continuity?
Replace the operator panel
assembly. See
“Operator
panel assembly removal”
on page 4-23
.
Replace the top cover
access assembly. See
“Top
access cover assembly
removal—model C52x
only” on page 4-28
or
“Top
access cover assembly
removal—model C53x
only” on page 4-32
.
Summary of Contents for C52 series
Page 13: ...Laser notices xiii 5022 xxx Japanese Laser Notice ...
Page 14: ...xiv Service Manual 5022 xxx Korean Laser Notice ...
Page 125: ...Diagnostic aids 3 31 5022 xxx ...
Page 150: ...3 56 Service Manual 5022 xxx ...
Page 164: ...4 14 Service Manual 5022 xxx Cover removals ...
Page 177: ...Repair information 4 27 5022 xxx Installation note Be sure the tab B is fully engaged B ...
Page 180: ...4 30 Service Manual 5022 xxx 9 Remove the linkage screw C C ...
Page 184: ...4 34 Service Manual 5022 xxx 10 Remove the linkage screw C C ...
Page 256: ...4 106 Service Manual 5022 xxx ...
Page 257: ...Locations and connectors 5 1 5022 xxx 5 Locations and connectors Locations Covers ...
Page 260: ...5 4 Service Manual 5022 xxx Rear ...
Page 263: ...Locations and connectors 5 7 5022 xxx CRU and FRUs ...
Page 264: ...5 8 Service Manual 5022 xxx Sensors Toner level sensor Toner patch sensor TPS ...
Page 265: ...Locations and connectors 5 9 5022 xxx Motors ...
Page 266: ...5 10 Service Manual 5022 xxx Printer cards ...
Page 267: ...Locations and connectors 5 11 5022 xxx Connectors System card network models C52x ...
Page 268: ...5 12 Service Manual 5022 xxx System card non network models C52x ...
Page 274: ...5 18 Service Manual 5022 xxx System card network models C53x ...
Page 280: ...5 24 Service Manual 5022 xxx ...
Page 282: ...6 2 Service Manual 5022 xxx ...
Page 284: ...7 2 Service Manual 5022 xxx Assembly 1 Covers 15 1 2 3 4 9 5 8 10 12 13 14 6 7 11 ...
Page 286: ...7 4 Service Manual 5022 xxx Assembly 2 Front ...
Page 288: ...7 6 Service Manual 5022 xxx Assembly 3 Right ...
Page 290: ...7 8 Service Manual 5022 xxx Assembly 4 Rear ...
Page 292: ...7 10 Service Manual 5022 xxx Assembly 5 Left 1 2 3 ...
Page 294: ...7 12 Service Manual 5022 xxx Assembly 6 Top 1 2 ...
Page 296: ...7 14 Service Manual 5022 xxx Assembly 7 Customer replaceable units CRUs 3 4 1 2 5 6 2 ...
Page 298: ...7 16 Service Manual 5022 xxx Assembly 8 Contact springs ...
Page 300: ...7 18 Service Manual 5022 xxx Assembly 9 Cable parts packet ...
Page 312: ...I 10 Service Manual 5022 xxx ...
Page 313: ......
Page 314: ......