Ricoh spu4 Service Bulletin
FILM PROJECTOR UNIT
(Machine Code: A846)
24 February, 1999 OVERVIEW
1. SPECIFICATIONS
Acceptable Film Types: Type:Positive film/Negative film
Size: 35 mm - Approx. 140 x 210 mm
Others: 45 x 60 mm, 60 x 60 mm,
60 x 70 mm, 60 x 80 mm,
60 x 90 mm, 4" x 5"
Max: 142 x 210 mm or 5.6" x 8.2"
Mount: Yes (Up to 5 frames can be set in the
film holder.)
Strip: Yes (A series of 6 frames can be
set in the film holder.)
Focusing: Fixed/Manual
Effective Film Area: 35 mm: Approx. 21.5 x 33.0 mm
Other Sizes: Full Size
Projection Ratio 35 mm: Approx. x 6
Other Sizes: x 1
Copy Image Size 35 mm mount: 120.8 x 192.7 mm
35 mm strip: 129.3 x 198.6 mm
Other Sizes: Full Size
All the reproduction features of the copier are available.
Power Source: 120 V 60 Hz, more than 0.9 A
220 ~ 240 V 50/60 Hz, more than 0.5 A
Dimensions (W x D x H): Projector: 300 x 442 x 212 mm
11.8" x 17.4" x 8.35"
Mirror Unit:298 x 232 x 50 mm
11.73" x 9.13" x 1.97"
Weight: Projector: 10 kg, 22.1 lb
Mirror unit: 5 kg, 11.1 lb
Remarks: The holder is required for installation.
A846-1
Options
OVERVIEW 24 February, 1999
2. ELECTRICAL COMPONENT LAYOUT AND
DESCRIPTIONS
1
2
9
8
6
7
Symbol Name Function
Projector Lamp Regulator Supplies dc voltage to the
PCB1
PCB2
PCB3
M1
SW1
L1
TH1
TF1
TR1
Projector Control Board Controls the projector unit,
Noise Filter Board
(220—240V machine only)
Lamp Cooling Fan Blows air to the projector lamp
Projector Switch Provides power to the projector
Projector Lamp Applies light to the film for
Lamp Thermistor
Lamp Thermofuse Opens the projector lamp circuit if
Transformer
projector lamp and lamp cooling
fan.
communicating with the copier
main board.
Removes electrical noise.
section.
unit.
exposure.
Detects the temperature around
the projector lamp to control the
lamp cooling fan.
the projector lamp section
overheats.
Steps down the wall voltage to 17
∼ 18 V ac.
3
4
5
A718V500.PCX
Index
No.
4
5
3
2
1
7
8
9
6
A846-2
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