Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 3-41
Services Release Version 11-97
Primary FIPS: Error Codes
3.33 Error Code H2-7
There is a communication problem between the printer and the Duplex Unit.
Logic Control on the MCU PWB could not initialize the Duplex Unit within the specified time.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The followin
g
components are associated with this specific
problem. One or more of these components ma
y
have failed
partiall
y
or completel
y
. If
y
ou cannot isolate the problem usin
g
this FIP, replace each component listed below, one at a time,
until the problem disappears.
•
wiring and connectors linking the components
1
LVPS +5VDC CHECK
Measure the volta
g
e between J400-7 and FG, and between
J400-8 and FG on the MCU PWB.
Is there +5VDC between J400-7 and FG, and +5VDC
between J400-8 and FG?
Go to step 2 Replace the
LVPS Assem-
bl
y
(
RRP 9.2
)
2
Replace the Duplex Module PWB
(
RRP 12.5
)
Does the H2-7 error code appear?
Go to step 3 Problem
solved
3
Replace the MCU PWB
(
RRP 9.7
)
Does the H2-7 error code appear?
Refer to the
wirin
g
dia-
g
rams Section
14 and check
for a broken
wire or a
loose connec-
tion between
components
Problem
solved