T
echnical
B
ulletin
PAGE: 1/1
Model:
Shepherd-P1
Date:
28-Dec-18
No.:
RJ093009
Subject: UV lamps’ emission power is too low, which
causes the ink not to cure.
Prepared by:
T.Ejima
From:
PP CF/WF Section, CIP Product Quality Management
Department, Quality Assurance Center, Quality Management
Division
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other
Action required
Service manual revision
Retrofit information
Tier 2
SYMPTOM
UV lamps' emission power is too low, which causes the ink not to cure.
This problem has occurred repeatedly at two of our customer sites.
Cause
There is a bug in Interface Board's firmware. The bug is an interface sequence problem
between the Interface Board and the LED Module. (The Interface Board is a service part
which part number is J0935404.)
Solution
The vendor updated the firmware of the Interface Board by modifying the limit of time that
is used when waiting for a response after sending a command, which fixed the problem.
The improved Interface Board has been given the part number J0935405.
So please replace the current Inter Board(J0935404) with J0935405.
Interface Board
LED Module
Main Board
PC
