Ricoh bypass-a Service Bulletin

20 December 1991 SPECIFICATIONS

1. SPECIFICATIONS

Copy Paper Size: Maximum A3 or 11" x 17"

Minimum 100 mm x 148 mm

(4") (6")
Paper Capacity: Maximum 50 sheet
Paper Feed System: Feed and reverse roller (FRR)
Dimensions: 475.5 mm x 359 mm x 43 mm (W x D x H)

(18.54") (14.00") (1.68")

Weight: 0.98 kg

Multi

By-passTray

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[A]

OVERVIEW 20 December 1991

2. OVERVIEW

2.1 PAPER SIZE DETECTION

Reflective Sensor com bina tion Tabl e

front

Sensor

Size
A3/11 x 15, 11 x 17 (DLT) ON ON ON ON ON ON
A4/11" x 8
B4/10 x 14 ON ON ON ON ON OFF
B5 Sideways *ON ON ON ON ON OFF
A4/8 x 13 (F), 8

1/2" x 13" (F4), 81/2" x 11

8
(LT) Lengthwise

A5/8
B5/5

Lengthwise
A5 Lengthwise ON ON OFF OFF OFF OFF
B6 Lengthwise ON OFF OFF OFF OFF OFF

1/2" Sideways *ON ON ON ON ON ON

1/2" x 14 (LG)

1/2" x 51/2 (HLT) Sideways *ON ON ON ON OFF OFF
1/2"x 81/2" (HLT)

654321

ON ON ON ON OFF OFF

ON ON ON OFF OFF OFF

rear

*: Paper leng th det ection enable
Multi By-pass sensor [A] dete cts pa per size .

Paper width is detected by an array of six reflective senso rs in the Multi
By-pass Sensor when pape r pass un de rne at h th e sensor.
When paper length is short e r th an A4 side ways/11 x 81/2 sideways, the fro nt
end reflective sensor also dete cts pa per le ngth . CPU jud ge s the paper len gt h
by the time lag between multi by-pa ss sensor OFF (trailing edge detection )
timing and registration sensor ON (leading edge detection) timing.

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