Ricoh ps150 Service Bulletin
20 December 1991 SPECIFICATIONS
1. SPECIFICATIONS
Copy Paper Size: Maximum A3 or 11" x 17"
Minimum B5R or 51/2" x 81/2"
Copy Paper Weight: Black or single color copies: 52 to 104g
14 to 281b
Full color copies: 64 to 104g
17 to 281b
Paper Feed System: Feed and reverse roller (FRR)
Power Source: 100 V, 50/60 Hz, 0.6 A (From Copier)
Dimensions (W x H x
D):
Weight: 55 kg (1211b)
835 mm x 425 mm x 640 mm
(32.9") (16.7") (26.7")
1
PAPER SIZE AND END DETECTION 20 December 1991
2. PAPER SIZE AND END DETECTION
[E]
[A]
[B]
[F]
[D]
[C]
Paper size is detected by an array of five ph ot ointerrupters [A] in the cassette
entrance. The paper size sen sors are actuated by a plate on the front of the
cassette. Each paper size ha s it s own un iqu e combination of notche s in the
actuator plate [B]. The CPU rea ds which photointerrupters have been
de-actuated (0 V to 5 V) by the actuator pla te to dete rmine which pa per size
has been inserted.
When a cassette runs out of pape r, the paper end feeler [C] drop s thro ug h a
slot [D] in the cassette bottom plate. The paper end actuator [E], which is on
the same shaft as the pa per e nd fee ler, pivot s in to the det ect or
(photointerrup te r) [ F]. The de tector then provides a HIGH sign al to the CPU
informing it that the ca sset te is empty.
The Add Paper indicator th en turns on, the Start key turns red, an d th e
machines stops after th e cop y is fin ishe d.
2
20 December 1991 PAPER SIZE AND END DETECTION
Actuator Plate Combination Table
Paper Size
A3
B4
A4 sideways
A4 lengthwise
B5 sideways
B5 lengthwise
A5 sideways
A5 lengthwise
B6 sideways
B6 lengthwise
Return Post Card
Post Card
11" x 17"
11" x 81/2"
11" x 15"
10" x 14"
81/2 " x 14"
81/2" x 13"
81/2" x 11"
81/2" x 51/2"
81/2" x 13"(14")
8" x 13" (14")
8" x 101/2"
8" x 10"
51/2" x 81/2"
No Cassette
Sensor No. Operation Panel Indicat ion
1 2 3 4 5 220 V 115 V
1 0 0 0 0
1 1 0 0 0
0 0 1 0 0
1 0 1 0 0
0 1 1 0 0
1 1 1 0 0
0 0 0 1 0
1 0 0 1 0
0 1 0 1 0
1 1 0 1 0
0 0 1 1 0
0 0 1 1 0
0 0 0 0 1
1 0 0 0 1
0 1 0 0 1
1 1 0 0 1
0 0 1 0 1
1 0 1 0 1
0 1 1 0 1
1 1 1 0 1
0 0 0 1 1
1 0 0 1 1
0 1 0 1 1
1 1 0 1 1
0 0 1 1 1
1 1 1 1 1
A3
B4
A4
A4R
u32
*
u32
u32
u32
u32
u32
u32
*
*
*
*
*
F4
*
u32
*
F
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
11" x 17"
11" x 81/2"
11" x 15"
*
81/2" x 14"
*
81/2" x 11" R
81/2" x 51/2"
*
*
*
*
51/2" x 81/2"
*
1: Not interrupte d (Lo w)
0: Interrupted (High)
3
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