Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 9-5
Release Version 11-97
Making Printer Adjustments
To Adjust Lead Edge Registration
Use these routines to ali
g
n the ima
g
e on the drum with the lead ed
g
e of the paper. Each feeder has a sep-
arate Lead Ed
g
e Ad
j
ustment procedure. Use the table below to select the appropriate feeder.
Checking Lead Edge Registration
1. Use Dia
g
nostic Routine 23-13 to
g
enerate a Grid Test Pattern.
2. Measure the distance from the lead ed
g
e of the paper to the be
g
innin
g
of the
g
rid pattern.
3. If the measurement is 4.0mm ±1.5mm
(
±1.9mm Duplex
)
, the lead ed
g
e re
g
istration is within specifica-
tion.
4. If the measurement is out of specification, procedure to
Adjusting Lead Edge Registration
.
Adjusting Lead Edge Registration
1. Enter Ad
j
ustment Routine 20-1
(
Lead Ed
g
e Re
g
istration for all tra
y
s
)
.
2. Press Function Ke
y
[
1
]
to view the current value of all tra
y
lead ed
g
e re
g
istration.
The LCD displa
y
s the
Chn
-
Fun
number of the test,
NVM
, and
the current value
.
The cursor is under the first di
g
it of the current value.
3. Use the Control Panel ke
y
s to chan
g
e the value of the first di
g
it.
4. Press
[
5
]
to move the cursor to the second di
g
it.
5. Use the Control Panel ke
y
s to chan
g
e the value of the second di
g
it.
6. Press Function Ke
y
[
1
]
to write the new value to memor
y
.
7. Press Function Ke
y
[
0
]
to clear the bottom line.
8. Press Function Ke
y
[
1
]
to read the new value.
9. Use Dia
g
nostic Routine 23-13 to
g
enerate a Grid Test Pattern.
10. Measure the new lead ed
g
e re
g
istration.
11. When you have finished making all of the changes
, run NVRAM Initialization Chn-20 Fun-67.
This writes to NVRAM the new lead ed
g
e re
g
istration value for all tra
y
s.
Chain
(Routine)
Function
(Subroutine)
Purpose Min
Value
Nom
Value
Max
Value
Step
Value
20 1
Lead edge registration - All trays 0 8 20 1=0.346mm
20 41
Lead edge registration - Tray 1 0 8 20 1=0.346mm
20 42
Lead edge registration - Tray 2 ~ 5 0 8 20 1=0.346mm
20 43
Lead edge registration - MSI 0 8 20 1=0.346mm
20 44
Lead edge registration - Envelope 0 8 20 1=0.346mm
20 45
Lead edge registration - Duplex Module 0 8 20 1=0.346mm
SER977XA