Sensing Rap - Xerox DocuPrint C55 Service Manual

OF3 TRAY 1 PAPER SIZE SENSING
RAP
This RAP is used to troubleshoot the paper
size sensing for Tray 1. Use this RAP when
the paper size that is loaded is not the same
size that is being sensed.
INITIAL ACTION
Remove Tray 1 and check the movable length
stop. Make sure the tab which actuates the
sensors is not broken.
Carefully load the paper size which is not
being detected correctly.
Switch the power off wait 10 seconds and
switch the power on. Make a print of the paper
size which is loaded to recheck for the fault.
PROCEDURE
Enter IOT normal diagnostics. Scroll to the
SWITCH SCAN program and select Scan Row
01. Press Form Feed [1].
Remove Cassette 1. Observe the LED' s.
The Cyan, Magenta and Yellow LEDs are all
off.
Y N
Refer to BSD 7.2 and check the following:
• If all three LEDs are on, check the
+5 VDC, CN107-7 for an open.
• Cyan LED on, check Paper size 0,
CN107-8 for an open.
• Magenta LED on, check Paper Size 1,
CN107-9 for an open.
• Yellow LED on, check Paper Size 2,
CN107-10 for an open.
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
A
DocuPrint C55/C55mp/[NC60]
A
Press Media Server [2], select Scan Row 02.
Press Form Feed [1]. Observe the LED' s.
The Black and Cyan LEDs are off.
Y N
Refer to BSD 7.2 and check the following:
• Black LED on, check Paper size 3,
CN107-11 for an open.
• Cyan LED on, check Paper Size 4,
CN107-12 for an open.
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
With Scan Row 02 still selected move the
length stop to the Legal (14") position (Figure
2-3).
Insert the cassette. Observe the LED' s.
The Cyan LED goes on when the cassette
is inserted.
Y N
Refer To BSD 7.2 and check Paper Size
4, CN107-12 for a short to ground.
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
Remove the cassette and move the length
stop to the A4 (11.7" )"position.
Insert the cassette. Observe the LED' s.
The Black LED goes on when the cassette is
inserted.
Y N
Refer To BSD 7.2 and check Paper Size
3, CN107-11 for a short to ground.
B C
2/99
2-35
B C
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
Press Media Server [2], select Scan Row 01.
Press Form Feed [1].
Remove the cassette and move the length
stop to the Letter (11" )"position.
Insert the cassette. Observe the LED' s.
The Yellow LED goes on when the cassette
is inserted.
Y N
Refer To BSD 7.2 and check Paper Size
2, CN107-10 for a short to ground.
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
Remove the cassette and move the length
stop to the Executive (10.5" )"position.
Insert the cassette. Observe the LED' s.
The Magenta LED goes on when the
cassette is inserted.
Y N
Refer To BSD 7.2 and check Paper Size
1, CN107-9 for a short to ground.
If wiring is OK, replace the PCU PWB. If
the problem still exists, replace the
Cassette PWB.
Replace the PCU PWB. If the problem still
exists, replace the ESS PWB.
10.5" 11", A4
Figure 2-3 Length Stop Location
OTHER FAULTS RAPs
14"
OF3