magicolor 330 - Base Engine Service Manual 3-65
Primary FIPS: Error Messages

3.61 - Error Message: Top Stack Full

The Top Stack is full.
Logic control on the MCU PWB detected that the Full Stack Sensor is actuated for more than 12 seconds.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific prob-
lem. One or more of these components may have failed partially or
completely. If you cannot isolate the problem using this FIP,
replace each component listed below, one at a time, until the prob-
lem disappears.
• Wiring and connectors linking the components
• Top Cover Assembly (RRP 9.3)
1OUTPUT TRAY INSPECTION
Count the sheets of paper in the Output Tray.
Are there over 250 sheets of paper, no heavier than 28 lb. stock,
in the Output Tray?
The Output
Tray has
reached the set
limit. Remove
the paper from
the Output
Tray.
Go to step 2
2FULL STACK SENSOR INSPECTION
Inspect the Sensor and Sensor Actuator area for paper scraps that
might cause the Sensor to stick.
Is the area free of paper scraps?
Go to step 3 Remove all
paper scraps
from the area
3FULL STACK SENSOR TEST
1. Enter Diagnostics and test the Full Stack Sensor --Top
input test.
2. Observe the last number in the Diagnostic Status W in-
dow.
3. Load 250 sheets of paper into the Output Tray.
Does the diagnostics return a "Actuated" response?
Go to step 4 Replace the
Full Stack Sen-
sor (RRP
9.103)
4Replace the MCU PWB (RRP 9.123)
Does the error message still appear?
Go to suspect
components
Problem
Solved