Sharp MX-C380P / MX-C400P / MX-B380P / MX-B382P / MX-B400P (serv.man17) Service Manual / Technical Bulletin ▷ View online
Sharp Electronics (UK) Ltd., Document Systems Support
4/5
No.
Cautions for handling
Cases reported in the past
Coutnermeasure etc.
1
Wear a ground strap to
handle PWBs.
handle PWBs.
EEPROM data may be garbled due to static
charge.
(Please refer to the Service Manual “Note for
handling PWB and electronic parts” in “NOTE FOR
SERVICING”.)
charge.
(Please refer to the Service Manual “Note for
handling PWB and electronic parts” in “NOTE FOR
SERVICING”.)
-
2
Do not insert EEPROM
into the socket facing
the opposite direction
into the socket facing
the opposite direction
“U2 trouble” occurs 100% if you turn on the device
while mounting the EEPROM facing the opposite
direction. The EEPROM may be damaged due to
excessively high temperature.
The data may be garbled even if you could avoid
the damage.
When Sim 16 is executed to clear the “U2 trouble”,
the garbled data may result.
It is impossible to repair in field once the data are
garbled.
while mounting the EEPROM facing the opposite
direction. The EEPROM may be damaged due to
excessively high temperature.
The data may be garbled even if you could avoid
the damage.
When Sim 16 is executed to clear the “U2 trouble”,
the garbled data may result.
It is impossible to repair in field once the data are
garbled.
Step 1: Don’t execute Sim
16.Turn off the power and
mount the EEPROM facing
the proper direction.
Step 2: Execute Sim 16 to
clear “U2 trouble”.
16.Turn off the power and
mount the EEPROM facing
the proper direction.
Step 2: Execute Sim 16 to
clear “U2 trouble”.
3
Do not mount
EEPROM on different
PWB (among PCU,
MFP, Scanner PWB
etc.)
EEPROM on different
PWB (among PCU,
MFP, Scanner PWB
etc.)
“U2 trouble” occurs 100% if you turn on the device
while mounting the EEPROM in improper location.
In addition, the data may be garbled.
When Sim 16 is executed to clear “U2 trouble”, the
garbled data may result.
It is impossible to repair in field once the data are
garbled.
while mounting the EEPROM in improper location.
In addition, the data may be garbled.
When Sim 16 is executed to clear “U2 trouble”, the
garbled data may result.
It is impossible to repair in field once the data are
garbled.
-
4
Do not bend pins
around EEPROM
around EEPROM
The pins may be bent if the EEPROM is
detached/mounted several times.
detached/mounted several times.
-
5
Do not use styrene
foam for transportation
of EEPROM.
foam for transportation
of EEPROM.
Styrene foam can generate static charge easily.
There are cases where EEPROM is damaged just
by inserting the EEPROM into the styrene foam.
There are cases where EEPROM is damaged just
by inserting the EEPROM into the styrene foam.
Use black sponge used for
packing of service parts
EEPROM for transportation.
This sponge is made with
special material which does
not generate static charge.
packing of service parts
EEPROM for transportation.
This sponge is made with
special material which does
not generate static charge.
Sharp Electronics (UK) Ltd., Document Systems Support
5/5
[5] Cautions for prevention of EEPROM breakage
[Important]
SIM16 is the simulation to clear the trouble when U2 trouble occurs even though any service (repair or maintenance etc.) has not been
performed.
As described above, this SIM cannot clear U2 trouble caused by the human error. EEPROM will be rather broken
if this SIM is executed.
Counter data and the adjustment values of the machine are also logged in EEPROM.
EEPROM with data garbled cannot be repaired even at Nara factory and the initialization is only the option.
Once EEPROM is initialized, the counter data is reset to "0", which will complicate the management of account billing data based on counters.
In some cases it may cause dealers a loss.(e.g.: Even though 3,000 pages have run, it is not possible to charge the end user for the counter as
there is no counter data.)
Since all data including the adjustment values are reset to the default, all adjustment items need to be readjusted, "Which requires long hours
of work"
Sharp Electronics (UK) Ltd., Document Systems Support
5/5
[5] Cautions for prevention of EEPROM breakage
[Important]
SIM16 is the simulation to clear the trouble when U2 trouble occurs even though any service (repair or maintenance etc.) has not been
performed.
As described above, this SIM cannot clear U2 trouble caused by the human error. EEPROM will be rather broken
if this SIM is executed.
Counter data and the adjustment values of the machine are also logged in EEPROM.
EEPROM with data garbled cannot be repaired even at Nara factory and the initialization is only the option.
Once EEPROM is initialized, the counter data is reset to "0", which will complicate the management of account billing data based on counters.
In some cases it may cause dealers a loss.(e.g.: Even though 3,000 pages have run, it is not possible to charge the end user for the counter as
there is no counter data.)
Since all data including the adjustment values are reset to the default, all adjustment items need to be readjusted, "Which requires long hours
of work"
Sharp Electronics (UK) Ltd., Document Systems Support
5/5
[5] Cautions for prevention of EEPROM breakage
[Important]
SIM16 is the simulation to clear the trouble when U2 trouble occurs even though any service (repair or maintenance etc.) has not been
performed.
As described above, this SIM cannot clear U2 trouble caused by the human error. EEPROM will be rather broken
if this SIM is executed.
Counter data and the adjustment values of the machine are also logged in EEPROM.
EEPROM with data garbled cannot be repaired even at Nara factory and the initialization is only the option.
Once EEPROM is initialized, the counter data is reset to "0", which will complicate the management of account billing data based on counters.
In some cases it may cause dealers a loss.(e.g.: Even though 3,000 pages have run, it is not possible to charge the end user for the counter as
there is no counter data.)
Since all data including the adjustment values are reset to the default, all adjustment items need to be readjusted, "Which requires long hours
of work"
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