Service manual

5-4 QMS 3260/4032 Laser Printer - Base Engine Technical Manual
Release Version 11-97
Primary Fault Isolation Procedures
The use of Diagnostic Test Print
Image Quality FIPs may ask you to run a specific Diagnostic Test Print subroutine to help isolate the cause
of an image quality problem. For each subroutine the printer circuity generates a test print that serves a
single, diagnostic purpose. Follow the instructions in each FIP to evaluate the test print.
Runnin
g
Test Print
Use this diagnostic routine to print a specific type of test pattern. The test patterns are built into the printer
circuity, so Test Print is an excellent tool for isolating and diagnosing print quality problems.
Defaults
Unless you specify otherwise, the printer generates a test print using the default values;
Simplex mode
Feed from Tra
y
1
Print the current selected ima
g
e area: normal or wide
Print 4 dot
g
rid test pattern
Deliver to the Face Down Output Tra
y
, with no sheet offset
To
g
enerate a Test Print
1. Enter Dia
g
nostic Mode
The printer is in Dia
g
nostic Mode and the LCD displa
y
s Chn-00 Fun-00.
2. Select a specific Test Print pattern from the table in Section 8.
3. Use the Control Panel ke
y
s to enter the Chn and Fun number of the test
y
ou want to run.
4. Press Function Ke
y
[
1
]
to
g
enerate a Test Print.
The printer
g
enerates test prints until
y
ou stop the routine.
To sto
p
Test Print
Press Function Ke
y
[
0
]
.
SER575X