Epson M100 - Product Icon Does Not Appear in Windows Taskbar; Printing is Slow

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Appendix Points to be checked before packing the printer 82
M200 / M205 / M100 / M105 Series Revision A
5.2 Points to be checked before packing the printer
 The Valve Lever is on the position shown below (the
Choke Valve is closed). (See Figure 2-10.)
 All the caps of the Ink Supply Tank Assy are securely
closed.
 The opened ink bottle is not included in the box.
Valve Lever
Cap