Ricoh PB1170 Quick start guide

Paper Feed Unit PB1170
Machine Code:D3GQ
Field Service Manual
Ver 1.0
Latest Release: Nov., 2019
Initial Release: Nov., 2019
Copyright (c) 2019 Ricoh Co.,Ltd.

Symbols, Abbreviations and Trademarks
Symbols and Abbreviations
This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations
are as follows:
Symbol
What it means
Clip ring
Screw
Connector
Clamp
Spring
SEF
Short Edge Feed
LEF
Long Edge Feed
K
Black
C
Cyan
M
Magenta
Y
Yellow
B/W, BW
Black and White
FC
Full color
[A] Short Edge Feed (SEF)
[B] Long Edge Feed (LEF)
Trademarks
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use of such marks by Ricoh Company, Ltd. is under license.
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countries.
The SD and SD logo are trademarks of SD-3C, LLC.
UNIX is a registered trademark of The Open Group.
UPnP is a trademark of UPnP Implementers Corporation.
This product includes RSA BSAFE® Cryptographic software of EMC Corporation. RSA and BSAFE are
registered trademarks or trademarks of EMC Corporation in the United States and other countries.
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1
Table of Contents
1. Detailed Descriptions........................................................................................................................2
Overview...............................................................................................................................................2
Paper Transport Drive ..........................................................................................................................4
Sensors and Friction Pad .....................................................................................................................5
Tray Lifting up Mechanism....................................................................................................................6
2. Replacement and Adjustment...........................................................................................................7
Beforehand...........................................................................................................................................7
Rear Cover...........................................................................................................................................8
Upper Cover.........................................................................................................................................9
Controller Board (PCB1).....................................................................................................................10
Controller Board (PCB1) with the Bracket.......................................................................................10
Paper Feed Roller ..............................................................................................................................12
Friction Pad ........................................................................................................................................13
Vertical Transport Rollers...................................................................................................................14
Vertical Transport Roller (Driven side)............................................................................................14
Vertical Transport Roller (Driving Side)...........................................................................................14
Paper End Sensor (S2) / Remaining Paper Sensor (S3)....................................................................17
Paper Transport Sensor (S1)..............................................................................................................18
Tray Bottom Plate Lift Sensor and HP Sensor....................................................................................19
Tray Bottom Plate Lift Sensor (S5) .................................................................................................19
Tray Bottom Plate HP Sensor (S4).................................................................................................19
Tray Set Sensor (SW2).......................................................................................................................21
Cover Sensor (SW1)...........................................................................................................................22
Tray Lift Motor (M2)............................................................................................................................23
Paper Transport Motor (M1)...............................................................................................................24
Paper Transport Clutch (CL1) and Paper Feed Clutch (CL2).............................................................25

1.Detailed Descriptions
2
1.Detailed Descriptions
Overview
Callout
Item
Callout
Item
[A]
Side Fence
[I]
Paper Transport Sensor (S1)
[B]
End Fence
[J]
Cover Sensor (SW1)
[C]
Tray Bottom Plate Lift Sensor (S5)
[K]
Friction Pad
[D]
Tray Bottom Plate HP Sensor (S4)
[L]
Tray Set Sensor (SW2)
[E]
Paper End Sensor (S2)
[M]
Bottom Plate Lift lever
[F]
Remaining Paper Sensor (S3)
[N]
Tray Bottom Plate
[G]
Paper Feed Roller
[O]
Anti-condensation Heater (Option)
[H]
Vertical Transport Roller
[P]
Paper Tray

1.Detailed Descriptions
3
Callout
Item
Callout
Item
[A]
Anti-condensation Heater (Option)
[D]
Paper Feed Clutch (CL2)
[B]
Controller Board (PCB1)
[E]
Tray Lift Motor (M2)
[C]
Paper transport Motor (M1)
-
-
Callout
Item
Callout
Item
[A]
Tray Bottom Plate Lift Sensor (S5)
[E]
Tray Set Sensor (SW2)
[B]
Tray Bottom Plate HP Sensor (S4)
[F]
Paper End Sensor (S2)
[C]
Paper Transport Clutch (CL1)
[G]
Remaining Paper Sensor (S3)
[D]
Cover Sensor (SW1)
[H]
Paper Transport Sensor (S1)

1.Detailed Descriptions
4
Paper Transport Drive
The paper transport motor (M1) [A] drives the paper feed clutch (CL2) [C] and the paper transport
clutch (CL1) [B] through gears. The operation timing of each clutch is as follows.
1. The paper feed clutch (CL2) [C] is turned on until the paper transport clutch (CL1) [B] starts to rotate.
2. The paper transport clutch (CL1) [B] is turned on until the paper reaches the mainframe. The paper
transport sensor (S1) detects whether or not the paper reaches the mainframe.
Callout
Item
Callout
Item
[A]
Paper transport Motor (M1)
[D]
Vertical Transport Roller
[B]
Paper Transport Clutch (CL1)
[E]
Paper Feed Roller
[C]
Paper Feed Clutch (CL2)
-
-

1.Detailed Descriptions
5
Sensors and Friction Pad
Only one actuator is used for detecting paper end and remaining paper.
The front side of the actuator is for the paper end sensor (S2) [A], and the rear side of the actuator is for
the remaining paper sensor (S3) [B].
The paper transport sensor (S1) [E] acts as a paper feed sensor.
This machine uses the friction pad method (same as the mainframe).
Callout
Item
Callout
Item
[A]
Paper End Sensor (S2)
[D]
Vertical Transport Roller
[B]
Remaining Paper Sensor (S3)
[E]
Paper Transport Sensor (S1)
[C]
Paper Feed Roller
[F]
Friction Pad

1.Detailed Descriptions
6
Tray Lifting up Mechanism
The pressure of the tray bottom plate [F] can be adjusted depending on the amount of paper remaining.
The drive of the tray lift motor raises the tray bottom plate [F] via the tray bottom plate pressure lever
[A], the pressing spring, and the tray bottom plate lift lever [E].
The pulses from the lift lever encoder [C] are detected by the tray bottom plate lift sensor (S5) [B]. The
tray lift motor is controlled based on the pulses from the encoder.
Callout
Item
Callout
Item
[A]
Tray Bottom Plate Pressure Lever
[D]
Tray Bottom Plate HP Sensor (S4)
[B]
Tray Bottom Plate Lift Sensor (S5)
[E]
Tray Bottom Plate Lift Lever
[C]
Lift Lever Encoder
[F]
Tray Bottom Plate

2.Replacement and Adjustment
7
2.Replacement and Adjustment
Beforehand
•Before installing options, please do the following:
If there is a fax unit in the machine, print out all messages stored in the memory, the lists of
user-programmed items, and the system parameter list.
If there are printer jobs in the machine, print out all jobs in the printer buffer.
Turn off the main switch and disconnect the power cord, the telephone line, and the network
cable.
•Do not lift the machine together with one or more paper feed unit(s):
If there is already a machine with one or more optional paper feed unit(s), be sure to
disconnect the machine and paper feed unit(s), and lift them up separately when
moving/transporting. Otherwise, the handle of the paper feed unit breaks which can cause an
injury, because the handle cannot hold the mainframe’s weight.
•Always touch a grounded surface to discharge static electricity from your hands before you
handle SD cards, printed circuit boards, or memory boards.

2.Replacement and Adjustment
8
Rear Cover
1. Remove the rear cover [A].

2.Replacement and Adjustment
9
Upper Cover
1. Remove the machine from the optional tray.
2. Remove the upper cover [A].

2.Replacement and Adjustment
10
Controller Board (PCB1)
1. Remove the rear cover (Rear Cover)
2. Remove the rear stay [A].
3. Remove the controller board (PCB1) [A].
Controller Board (PCB1) with the Bracket
1. Remove the rear cover. (Rear Cover)

2.Replacement and Adjustment
11
2. Remove the rear stay [A].
3. Remove the controller board (PCB1) with the bracket [A].

2.Replacement and Adjustment
12
Paper Feed Roller
Before Replacing the Paper Feed Roller
Before replacing the paper feed roller, reset the PM counter.
1. Turn the power ON.
2. Reset the PM counter. (Refer to Chapter 3 "Replacement Procedure of the PM/Yield Parts" of
Field Service Manual)
3. Turn the power OFF.
Replacing the Paper Feed Roller
1. Pull out the paper tray.
2. Do the following steps:
•Remove all clips on the shaft and move the roller [A] to the right side [1]. ( × 6, Bushing × 1)
•Move the shaft to the right, and pull out the shaft from the bushing at the left side.
•Lift up the shaft [2] and remove the shaft from the bushing at the right side.
•Remove the roller [B].
•Remove the paper feed roller [C]

2.Replacement and Adjustment
13
Friction Pad
Before Replacing the Friction Pad
Before replacing the friction pad, reset the PM counter.
1. Turn the power ON.
2. Reset the PM counter. (Refer to Chapter 3 "Replacement Procedure of the PM/Yield Parts" of
Field Service Manual)
3. Turn the power OFF.
Replacing the Friction Pad
1. Remove the paper feed roller. (Paper Feed Roller)
2. Remove the friction pad [A]. (Hooks × 2, × 1)
When reinstalling the friction pad:
•To prevent the friction pad from catching on the sheet [A], place the friction pad while
bending the sheet slightly outward.

2.Replacement and Adjustment
14
Vertical Transport Rollers
Vertical Transport Roller (Driven side)
1. Open the vertical transport cover [A].
2. Remove the vertical transport roller [A]. (Hooks × 2)
Vertical Transport Roller (Driving Side)
1. Remove the upper cover. (Upper Cover)
2. Remove the paper transport motor. (Paper Transport Motor (M1))