LASER PRINTER: JX-9685
Date
:
Aug. 22, 1997
No. : LPE-271
[Part Change Information]
1.ADDITION OF A RESISTOR CARRIED OUT IN THE PCU PWB.
2.APPLICATION OF GREASE TO THE 31 T GEAR C OF THE DELIVERY UNIT.
3.MEASURE TO IMPROVE THE EMI PERFORMANCE OF THE ICU PWB.
1. Addition of a resistor carried out in the PCU PWB.
1.Model Name: JX-9680/9685
2.General: The high level signal of the stop and start signal in the Polygon motor manufactured by
the Kumagaya Seimitsu Company was unstable, which resulted in the possibility of the
motor revolving even when set to stop. As a measure to alleviate this problem, the
addition of a pull up resistor has been added to the start and stop signal of the PCU
PWB.
3.Description: The addition of a pull up resistor VRD-HT2EY103J (10 KΩ) to the PCU PWB has been
carried out.
1) JX-9680 2) JX-9685
PCU PWB (CPWBF0049GC72) PCU PWB (CPWBF0088GC51)
Added resistor 10 KΩ
SHARP CORPORATION Printer and Scanner Division
1/4
Orange
C
JX-9685 PCU PWB The back side
Resistor (1/4 w 10 KΩ)
with tube (13mm)added.
JX-9680 PCU PWB The back side
Resistor (1/4 w 10 KΩ)
4.Action: From 1997 May production. (JX-9680)
From 1997 mid-February production. (JX-9685)
2/4
2. Application of grease to the 31 T gear C of the delivery unit.
1.Model Name: JX-9685
2.General: The application of grease (MOLYKOTE X5-6020) has been carried out to the entire
surface of the teeth of the delivery 31 T gear C of the delivery unit. This change has
been carried out as a measure to improve problems of copy image misalignment.
3.Description: The application of grease (MOLYKOTE X5-6020) YRESNBMP005FC has been carried
out to the delivery 31 T gear C (black).
Application of the grease has been carried out,
(White)
(Black)
spreading the grease evenly across the entire
surface of the teeth of the delivery 31 T gear C.
Grease (MOLYKOTE X5-6020)
4.Action: From the start of mass production.
3. Measure to improve the EMI performance of the ICU PWB.
1.Model Name: JX-9685
2.General: Changes have been carried out in the parts described below. These changes have been
carried out as a measure to improve the EMI performance of the ICU PWB.
3.Description: 1) R77: The 33Ω chip resistor → Chip bead BLM21B751S
(VRS-TP2BD330J) (RFILN0015GCZZ)
2) C106:The 100pF capacitor → 68pF capacitor
(VCKYTV1HB101K) (VCCCTV1HH680J)
4.Action: From 1997 February production.
3/4
Ref.
Model
name
Version P/G No.
New type cannot be used in place of current type.
New type can be used in place of current type.
9 - ---- VRD-HT2EY103J AA
All
10 -208 VRD-TP2BD330J RFILN0015GCZZ AD
10 -93 VCKYTV1HB101K VCCCTV1HH680J AA
No.
JX-9680
1
JX-9685 ’97/2
3 JX-9685
<Interchange>
1. Interchangeable. 4. Not interchangeable.
2. Current type can be used in place of new type.
3. Current type cannot be used in place of new type.
Parts marked with ‘‘ ’’ is important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
Current parts New parts
Parts code Parts code
5. Interchangeable if replaced with same types of
related parts in use.
6. Others.
Price
rank
Resistor
(1/4w 10kΩ ±5%)
Chip bead
(BLM21B751S)
Capacitor
(50wV 68pF)
Parts name
Effec-
tive
time
’97/5
’97/2 3
Inter-
change-
ability
6
Note
R77
C106
4/4
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