Xerox 7142 Service Manual

9 Troubleshooting RJ-901C/RJ-900C Maintenance Manual
9-72
9.3.6 Online Function Problems
Table 9-14 Symptoms, Check Items, and Actions for Online Function Problems
No. Event/symptom Check item Action Reference
1
USB interface cannot
establish communication.
1. Does computer in use
support USB?
Windows95 does not support
USB officially. If you use
Windows95, use computer
with Windows98 or higher
OS installed.
-
2. Does the same error
occur even if you use
another USB port on
the computer?
Use another USB port on the
computer.
-
3. Are you using USB
hub?
• Cascade connection
using USB hub is
available up to 5 stages.
• If the plotter operates
normally without using
USB hub, replace USB
hub.
• Instruct users to use USB
hubs compliant with
USB2.0 Hi-Speed
standard.
-
4. Attempt
communication with
PC on hand.
Replace USB cable.
-
5. Does the same error
occur even if interface
cable is changed?
Communication error may
be caused by an open circuit
in interface cable or too long
cable length. Instruct users to
use cables compliant with
USB2.0 Hi-Speed standard.
-
6. Plotter driver may be
defective.
Update plotter driver.
-
7. Program ROM may be
defective.
Update firmware.
"7.3.5
Firmware
Installation"
p.7-15
8. Main board assembly
may be defective.
Replace main board
assembly.
"4.3.3
Replacing
Main Board
Assembly"
p.4-21
2 Scaling does not work
correctly.
1. Plotter driver may be
defective.
Update plotter driver. Operation
Manual

Xerox 7142 Specifications

General

Brand	Xerox
Model	7142
Category	Printer
Language	English