Service manual

4-12 QMS 3260/4032 Laser Printer - Base Engine Technical Manual
Release Version 11-97
Primary Fault Isolation Procedures
4.6 J1-2 is not displayed when the EP Cartridge is out of toner
The Control Panel LCD does not display the code J1-2 when the EP Cartridge is out of toner.
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.
• LVPS Assembly (RRP 9.2)
• QMS Video Controller (RRP 9.7)
• wiring and connectors linking the components
1
TONER SENSOR TEST
1. Use Diagnostic Mode - Input H/L 9-4 to check the Toner
Sensor.
2. Insert and remove a new EP Cartridge into the printer.
Does the Control Panel LCD display L when the EP Car-
tridge is in place, and does the LCD display H when you
remove the Cartridge?
Replace the
MCU PWB
(RRP 9.7)
Replace the
Toner Sensor
(RRP 5.4)