543
JAN 2006
Ver. 5.2
DP-3510/3520/3530/4510/4520/4530/6010/6020/6030
11.1.3. Saddle Stitch Unit Operation
11.1.3.1. Basic Operation
This chapter discusses the purpose and role of each of the saddle stitch functions, and the principles of
operation used for the saddle stitch mechanical and electrical systems. It also explains the timing at which
these systems are operated.
The
symbol in drawings indicates transmission of mechanical drive, and signals marked by
together with the signal name indicates the flow of electrical signals.
In descriptions of digital circuits on the Saddle Stitch, "1" indicates a high signal voltage level, while "0"
indicates a low signal voltage level. Voltage values differ according to circuit.
A microprocessor is used in the Saddle Stitch to control all finishing functions.
Descriptions in this chapter also assume that PCBs will not be repaired at user sites. For this reason,
descriptions of circuits on PCBs is limited to block diagrams. Two types of block diagrams are provided for
separate functions: diagrams indicating details from sensors up to input sections of major PCBs, and
diagrams indicating details from the output sections of major PCBs up the components.
11.1.3.1.1. Outline
The unit “stitches” (2 points) a stack of sheets delivered by the Finisher Unit and folds it in two for delivery.
All these operations are controlled by the Saddle Stitch Controller PCB in response to commands from the
Copier via the Finisher Unit.
Fig. 3-001
Finisher Unit Control System
Control System
Guide Plate Drive
System
Paper Positioning
Plate Drive System
Alignment Drive
System
Saddle Stitch Drive
System
Delivery Drive System
Feed Drive System
Paper Pushing Plate
Drive System
Paper Folding Roller
Drive System
Summary of Contents for DP-3530
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