Diagnostic Information
2-5
4099
Service Checks
Carrier Transport Service Check
FRU
Action
1
System Board
Unplug the printer and disconnect the carrier
transport motor connector (J8) from the system
board. Plug in the printer and check for
approximately 12 V dc between (J8-1) and ground
as the printer goes through POST. If the voltage is
incorrect, replace the system board. If the voltage
is correct, check for carrier transport motor pins
shorted to the housing. If a short is detected,
replace the carrier transport motor.
2
Carrier Transport
Motor
Check the motor for binds, or loose motor pulley.
A noisy or chattering motor or a motor that fails to
turn can be caused by:
•
An open or short in the motor.
•
An open or short in the motor driver
on the system board.
•
A bind in the carrier transport
mechanism.
With the carrier transport motor cable
disconnected from the system board, check for 0
to 10 ohms between the following pins on the
motor:
J8-1 and J8-2
J8-3 and J8-4
If the readings are incorrect, replace the motor.
3
Carrier Guide Rod
Clean the carrier rod.
Note: Lubricate the rod and the carrier rod bearing
surfaces with grease P/N 99A0394.
Summary of Contents for Z31 Color Jetprinter
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Page 44: ...7 2 Service Manual 4099 Assembly 1 Covers ...
Page 46: ...7 4 Service Manual 4099 Assembly 2 Paper Feed ...
Page 48: ...7 6 Service Manual 4099 Assembly 2 Paper Feed Continued ...
Page 50: ...7 8 Service Manual 4099 Assembly 3 Electronics ...
Page 52: ...7 10 Service Manual 4099 Assembly 4 Carrier ...
Page 54: ...7 12 Service Manual 4099 Assembly 5 Automatic Sheet Feeder ...
Page 56: ...7 14 Service Manual 4099 Assembly 6 Maintenance Station ...
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