SHARP SP1873 Technical Report
Date: May. 11, 1995
COPIER : SF-2014
1. CHANGE TO 2/3 MIRROR AND 4/5 MIRROR LOCK SCREW (TO MAKE REMOVING IT EASIER)
2. IMP R OVEMENT OF IN SU LATION IN DEH U MID IFICA TI ON HEATER IN OPTICAL UNIT
3. PREVENTION OF DARK BOX CONTACTING DEHUMIDIFICATION HEATER DURING WEARING OR
TAKING OFF IT
4. REMOVAL OF DARK BOX COVER DURING TRANSPORTATION
5. PREVENTION OF BLUR IN COPY EDGE
6. LIGHT LEAKAGE FROM AE HOLDER OF OPTICAL UNIT
1. Change to 2/3 mirror and 4/5 mirror lock screw (to make removing it easier)
1.Model name: SF-2014/ 2114/ 2214
Z-800, SN-1420/1430 for USA only
No. : SP-1873
2.General: To remove screws fixing the 2/3 mirror and the
4/5 mirror easier, we have improved them that
Width 2 mm, depth 2 mm
can be removed with coin.
Fixing screw
3.Action: From mid-October 1994 production
2. Improvement of insulation in dehumidification heater in optical unit
1.Model name: SF-2014/ 2114/ 2214
SN-1420/1430 for USA only
2.General: When the CL lead ground terminal of the light source unit was fixed near the
dehumidification heater terminal as shown in below illustration, insulation between
these two terminals become imperfect. We have changed the dehumidification heater
tube to longer one.
Dehumidification heater
Insulation tube
Ground terminal of CL lead
SHARP CORPORATION Reprography Division
1/5
Green
C
3.Action: From the first unit of February 1995 production
3. Prevention of dark box contacting dehumidification heater during wearing or taking
off it
1.Model name: SF-2014/ 2114/ 2214
Z-800, SN-1420/1430 for USA only
2.General: The market and Xerox Co., Ltd. pointed that the dark box cover may contact the
dehumidification heater terminals when it is worn or taken off. We have attached the
insulation sheet to the dark box cover inside to make insulation perfect.
Dark box insulation sheet
Fold the sheet from A line.
Dark box cover
Attach its inside to match the
metal plate edge.
3.Action: From mid-October 1994 production
4. Removal of dark box cover during transportation
1.Model name: SF-2014/ 2114/ 2214
Z-800, SN-1420/1430 for USA only
2.General: The removal of dark box from the optical unit occurred during transportation.
3.Description: (1) We have changed one of three screws
which fix the lens unit (shown in right) to
the step screw. This is made to prevent
the dark box removal.
(SF-2014, Z-800 only)
(Change to the
step screw)
2/5
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