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T
echnical
B
ulletin
PAGE: 1/3
Model:
Aries-P1.5/C1.5, AG-P1/C1, AGL-P1/C1
Date:
29-Nov-13
No.:
RM077098
Subject:
Summary of development unit originating problems
- Toner degradation -
Prepared by:
J. Kobayashi
From:
PP Tech Service Dept., 1st PP Tech Service Sect.
Classification:
Troubleshooting
Mechanical
Paper path
Product Safety
Part information
Electrical
Transmit/receive
Other ( )
Action required
Service manual revision
Retrofit information
Tier 2
General
This bulletin summarizes the information announced in previously released RTBs for
image quality problems originating in the development unit and provides an explanation of
the differences between toner degradation and developer degradation along with the
correct actions required to avoid unneeded developer replacements, which in fact, often
take place without successful results due to misunderstanding toner degradation and
developer degradation.
How does toner degrade?
Toner degrades when fresh toner is not supplied to the development unit due to its low
consumption rate, which is caused by the following 3 factors:
z
Low image coverage ratio
z
Idling of C, M, Y development units when printing in B/W mode
z
Idling of the mainframe while optional devices are in operation
Degrading
process
Fresh
toner
Degraded
toner
Silica (additive)
Toner
Disintegrated
silica
Silica (additive)
Toner consumed in print
operations
Dev unit
Fresh toner supplied proportionately
to the consumption rate
Mixing applies
stress to the toner
Содержание pro c901
Страница 38: ...Technical Bulletin PAGE 2 44 Model Aries P1 5 C1 5 Date 17 Feb 11 No RM077018 Correction Page 117 to 131...
Страница 50: ...Technical Bulletin PAGE 14 44 Model Aries P1 5 C1 5 Date 17 Feb 11 No RM077018 Page 133 to 149...
Страница 63: ...Technical Bulletin PAGE 27 44 Model Aries P1 5 C1 5 Date 17 Feb 11 No RM077018 Page 182 to 203...
Страница 101: ...Technical Bulletin PAGE 21 28 Reissued 07 Aug 2012 Model Aries P1 5 C1 5 Date 18 Feb 11 No RM077019g Appendixes...
Страница 132: ...Technical Bulletin PAGE 2 3 Reissued 15 Jun 11 Model Aries P1 5 C1 5 Date 12 May 11 No RM077028a Victoria...
Страница 133: ...Technical Bulletin PAGE 3 3 Reissued 15 Jun 11 Model Aries P1 5 C1 5 Date 12 May 11 No RM077028a Columbia...
Страница 266: ...Technical Bulletin PAGE 2 2 Model Aries P1 5 C1 5 Date 26 Jan 12 No RM077059...
Страница 290: ...Technical Bulletin PAGE 2 2 Model Aries P1 5 C1 5 Date 13 Feb 12 No RM077064...
Страница 441: ...Technical Bulletin PAGE 2 2 Model Aries P1 5 Date 12 Dec 13 No RM077101...
Страница 549: ...Technical Bulletin PAGE 5 35 Reissued 6 Jun 15 Model Aries C1 5 P1 5 D095 M077 Date 17 Jun 14 No RM077114a...