Sharp MX-C250 / MX-C250E / MX-C250F / MX-C250FE / MX-C250FR / MX-C300F / MX-C300W / MX-C300WE / MX-C300A / MX-C300WR (serv.man52) Service Manual / Technical Bulletin ▷ View online
Sharp Electronics (UK) Ltd., Document Systems Support
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Date:
2
nd
September 2014
Model:
See below
Ref.:
CCE1351
Colour:
White
Page:
1 of 2
TECHNICAL BULLETIN
COUNTERMEASURES AGAINST
CONTAMINATION OF PAPER SURFACE
1. Model Name: MX-1810U/2010U/2310U/3111U,
MX-2314N/2614N/3114N/2615N/3115N/2616N/3116N,
MX-2610N/3110N/3610N,
MX-2640N/3140N/3640N,
MX-6240N/7040N/6500N/7500N,
MX-4110N/4111N/4112N/5110N/5111N/5112N,
MX-4140N/4141N/5140N/5141N
MX-C250/C250E/C250F/C250FE/C300E/C300F/C300W/C300WE, MX-C301/C301W,
MX-C300P/C300PE/C300PL,
MX-B382/B402/B382P/B382SC/B402SC
2. Description:
The following may be the cause of contamination on the paper surface. Please see below
and
implement
countermeasure.
For Fuser Units with a separator plate, micro sized toner contamination may accumulate
on the separator plate during regular paper feeding. A large amount of toner will
accumulate on the separator plate when there is poor fusing of toner to the paper or
when a setting is improperly set such as (incorrect paper type setting).
The accumulated toner melts down while the temperature is set to high and eventually
transfers to the paper. The fusing web may also be contaminated and trigger noise.
Please clean the separator plate when you perform maintenance or service on the Fuser
unit.
When you do, remove the separator plate clean both front and back surface with
alcohol.
If you don’t know how to remove the separator plate, please refer to the section in
Service Manual with description on disassembling/assembling of Fuser unit.
The service manual for MX-C250/C300 series does not describe how to
disassemble/assemble the Fuser Unit, so please refer to the instructions below.
Note 1: One of the causes of fusing failure is the incorrect paper type setting. Please tell
your client to set the paper type properly when using special type papers such as
heavy paper.
Sharp Electronics (UK) Ltd., Document Systems Support
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Note 2: The countermeasure for fusing failure (No. 30 of “Change Item” in Technical Report
No.CCE-1254 (ROM UPGRADE) has been implemented to the firmware for
MX-2640N/3140N/3640N as announced in the T/R. Although it has been implemented,
please make sure to check for the contamination on separator plate and fusing web on the
Fusing unit when you are upgrading to this firmware.
If contaminated, clean the separator plate and roll up the web roller sheet.
- Separator plate
Clean both front and back surface of the separator plate with alcohol.
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