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Service Bulletin
SB Number: SB DF-075 Creation Date: 26/04/2010
Subject: Firmware upgrade (Damaged single booklet sheets)
Model: DF-710/BF-720
Affected models: BF-710: DF-710: KM-C2520/3225/3232/2525E/3232E/4035E, KM-3050/4050/5050
BF-720: DF-720: TASKalfa500ci/400ci/300ci/250ci, TASKalfa420i/520i, TASKalfa552ci
Item Contents
Damaged Phenomenon
single sheet Single folded sheets may be damaged when ejected by the finisher, depending on the paper type.
folded paper.
Cause
The ejection speed by the booklet rollers is faster than the speed of the booklet blade.
This increases the load on the paper.
Solution
The ejection speed of the booklet rollers has been changed from 60mm/s to 90mm/s to synchronize
the speed between the booklet rollers and the booklet blade.
Booklet rollers
Booklet blade
Classification Entire stock rework X In-field modification by case No modification necessary
In-field modification at next visit
Field measure When the above mentioned phenomenon occurs, please replace the main PWB with the latest
type.
KMIS Service Department, Kyocera Mita Europe Page of 2 A094 / SB DF-075
Service Bulletin
Parts
No. Old Parts New Parts Description Q'TY Interchange- SP
No. No. ability
Old New Old New
1 303J180012 303J180013 MAIN PWB ASS'Y WITH SOFTWARE SP 1 1 X O O
3J180012 3J180013 (Version 3J1_9700.003.002)
2 303J101012 Changed to MAIN PWB ASS'Y 1 1 X O O
3J101012 new No.1 *1)
Part 1 and 2 have been unified, since the only difference is that part 1 does not contain the EEPROM and part 2 does
contain the EEPROM.
Serial numbers of affected machines
Type Serial number
BF-710 PRF6X02530
DF-710 PRA6X08114
The above mentioned changes have been applied to machines produced after the above mentioned serial numbers.
KMIS Service Department, Kyocera Mita Europe Page 2 of 2 A094 / SB DF-075