Epson/Seiko Epson ME OFFICE 900WD, Service Manual, Page: 6 / 20

Confidential
Revision Status
Revision Date of Issue Description
A April 28, 2010 First Release
B August 6, 2010 Revised Contents

Chapter 1

"1.1.2 Jigs (p13)" has been added.

The Stopper Assy has been added and made change in "Table 1-1 Standard Operation
Time (WorkForce 635 series) (p15)" of "1.2.1 Standard Operation Time for servicing
the product (p15)" .

Made change in "Table 1-2 Standard Operation Time (WorkForce 625 series) (p16)" of
"1.2.1 Standard Operation Time for servicing the product (p15)" .

Made change in "1.2.2 Disassembly/Reassembly Flowchart (p19)" .

Made change in "1.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit
(p24)" .
• Made change in " Document Pad (WorkForce 635/625 series) (p24)" .
• Made change in " Left Housing/Right Housing (WorkForce 635/625 series) (p24)" .
• Made change in " Panel Unit (WorkForce 635/625 series) (p24)" .
• Made change in " Lower Panel Housing (WorkForce 635/625 series) (p24)" .
• Made change in " Panel Board (WorkForce 635/625 series) (p25)" .
• Made change in " Ink System Assy (p25)" .
• Made change in " FAX Shield Plate/FAX Connector Cover (WorkForce 635 series)
(p25)" .
• Made change in " Star Wheel Assy (p25)" .
• Made change in " Main Board Unit (WorkForce 635/625 series) (p26)" .
• Made change in " Front Frame (p26)" .
• Made change in " Main Frame (w/ CR Assy) (p26)" .
• Made change in " Printhead (p26)" .
• Made change in " ADF Unit (WorkForce 635 series) (1) (p27)" .
• Made change in " ADF Unit (WorkForce 635 series) (2) (p27)" .
• " Paper Guide Front Assy (installation using the tools) (p28)" has been added.
• " Paper Guide Front Assy (Stopper Holder Idle Roller) (p28)" has been added.
• " LCD (WorkForce 635/625 series) (p28)" has been added.
• Made change in " Front Paper Guide Waste Ink Pad (p28)" .
• " Stopper Assy (WorkForce 625 series) (p28)" has been added.

Made change in "1.4 Routing FFCs/cables (p30)" .
• Made change in " Inside the USB Cover (WorkForce 635 series) (p30)" .
• Made change in " Panel Unit (WorkForce 635 series) (p30)" .
• Made change in " Scanner FFC/Scanner Motor Cable (WorkForce 635/625 series)
(p30)" .
• Made change in " P/S Board Assy (WorkForce 635/625 series) (p30)" .
• Made change in " FAX Assy (WorkForce 635 series) (p30)" .
• Made change in " Head FFC (p31)" .
• Made change in " Main Board (WorkForce 635 series) (p31)" .
• Made change in " PF Motor (p31)" .
• Made change in " PE Sensor (p31)" .
• Made change in " Inside the USB Cover (WorkForce 625 series) (p32)" .
• Made change in " Main Board (WorkForce 625 series) (p32)" .
• Made change in " Panel Unit (WorkForce 625 series) (p31)" .

Chapter 2

Made change in "2.1 Required Adjustments (p34)" .

"2.2.1 PF Timing Belt Tension Measurement/PF Belt Step Check (p40)" has been
added.

"2.2.2 Checking the Platen Gap (p43)" has been added.