EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Disassembly & Assembly Disassembly Procedures 302
 Make the rear side screw stop tabs stay under the 
"Cover, Motor, PF".
 The four grounding springs on the top of the "I/H Left 
Unit" make contact with the printer frame, so install the 
"I/H Left Unit" while lightly holding down the grounding 
springs so as not to deform them.
Cover, Motor, PF
Screw Stop Tabs
Grounding Springs