Service manual

QMS 3260/4032 Laser Printer - Base Engine Technical Manual 7-3
Release Version 11-97
Diagnostic Mode and the Control Panel
What is Diagnostic Mode?
Dia
g
nostics are built into the MCU PWB. You use the printer Control Panel to access Dia
g
nostic Mode so
y
ou can run the various dia
g
nostic routines that are available. Dia
g
nostics allow
y
ou to test various compo-
nents and subs
y
stems within the printer.
You can use Dia
g
nostic Mode to:
Check the operation of switches and sensors
Test various motors, solenoids, and clutches
Generate test patterns to check printer operation and xero
g
raphic functions
View and chan
g
e printer settin
g
s
To connect the Control Panel so you can access Diagnostic Mode
1. Remove the Control Panel from the Top Cover.
2. Disconnect the Control Panel from P421 on the ESS Mother PWB.
3. Connect the Control Panel to P410 on the MCU PWB.
4. Follow the steps listed in
To enter Diagnostics
on the next pa
g
e.