Ricoh FT5535 Service Manual page 409

CUSTOMER SERVICE GROUP
BULLETIN NUMBER:
APPLICABLE MODEL: FT4027/4527/5035/5535
SUBJECT: WHITE BANDS IN HALFTONE AREAS
SYMPTOM:
White bands in halftone areas in 200% enlargement mode.
CAUSE:
Light is reflected from the 6th mirror bracket.
SOLUTION:
A Mirror Seal has been added to correct the problem.
PART
NUMBER
A0481801
A1531923
* DENOTES NEW ITEM
NOTE: A part number has been assigned for the 6th Mirror Bracket.
UNITS AFFECTED
The Mirror Seal was cut into production with the following Serial Numbers:
• FT5035/5535 - A3625040001 / A3695040001
• FT4027/4527 - A363507XXXX / A371507XXXX
INTERCHANGEABILITY CHART:
OLD and NEW parts can be used in both OLD and
0
NEW machines.
NEW parts can be used in OLD and NEW machines.
1
OLD parts CAN NOT be used in NEW machines.
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured aft er the S/N cut-in or
3/S
previously modified, use the new part numbers individually.
TECHNICAL SERVICE BULLETIN
4027/4527/5035/5535/4022/4522 - 013
DESCRIPTION
Mirror Seal
6th Mirror Bracket
FT5535/5035
QTY
PAGE
0 → 1
35
0 → 1
35
NEW parts CAN NOT be used in OLD machines.
2
OLD parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
NEW parts CAN NOT be used in OLD machines.
02/21/96
6th Mirror Bracket
Mirror Seal
0 ~ 0.5mm
0 ~ 0.5mm
REFERENCE
MODEL
FT4027/4527
ITEM PAGE ITEM
28* 33 28*
27 33 27