Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual
2-1
Release Version 11-97
Fault Isolation Procedures
Section 2. The FIP Flowchart
If
y
ou used the Service Flowchart, it should have directed
y
ou to this section. Follow the
FIP Flowchart
,
located at the end of this section, to anal
y
ze
y
our printer problem.
How to Use the FIP Flowchart
1. If the LCD displays an error code; go to the
ERROR CODE
box.
2. If you a printer operation problem; go to the
PRINTER PERFORMANCE
box.
3. If you have an print image problem; go to the
IMAGE QUALITY
box.
4. Follow the arrow leading from your problem box to the individual Primary FIP (Fault Isolation Proce-
dure) that corresponds to your error code, printer operation problem, or print image problem.
5. Follow the instructions presented in the FIP.
6. If a FIP instructs
y
ou to perform a dia
g
nostic test, refer to
Section 8 Running Printer Diagnostics
.
7. Volta
g
e and resistance values presented in the FIPs are an approximation. Actual readin
g
s ma
y
var
y
from the stated values.
8. Primar
y
FIPs ma
y
direct
y
ou to a Secondar
y
FIP. In the FIP Flowchart, the relationship between Pri-
mar
y
and Secondar
y
FIPs is represented with dotted lines.
How to Follow a FIP
(
see the sample FIP below
)
1. Each numbered step in a FIP instructs you to perform a certain action or procedure.
2. The action box ma
y
contain additional information and numbered substeps
y
ou must follow to perform
the action.
3. The action is followed by a question.
4. If your response to the question is
Yes
, then follow the instructions for a Yes reply.
5. If your response to the question is
No
, then follow the instructions for a No reply.
6. FIPs often ask you to take voltage readings at certain test points within the printer.
Sections 11 and 14 contain information on test point locations and signal names.
7. FIPs often ask you to replace a printer component. Section 10 Removal and Replacement Procedures
provides you detailed steps for removing and replacing all major parts of the printer.
2
500 SIZE SWITCH SIGNAL
(
FULL
)
1. Install a full Paper Cassette into the Feeder.
2. Check the voltage between J302-1 and J302-2.
Is the voltage between J302-1 and J302-2 at a level that
corresponds to the paper size that is loaded in the Cas-
sette?
Go to step 3 Replace the
500 Sheet
Size Switch
RRP 1.5
·
Step number
·
Action with substeps, additional information, and a question.
·
Action to take if the answer to the question is YES
·
Action to take if the answer to the question is NO
EMPTY =
A4 SEF =
ENVELOPE =
LEGAL 13” =
LEGAL 14” =
+2.19 VDC
+2.82 VDC
+2.62 VDC
+2.4 VDC
+3.08 VDC
LETTER SEF =
+0.45 VDC
SER275X