Chapter 2 Operating Principles - Epson Stylus Pro 7700 Service Manual

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908
4.1.4 Cautions when replacing the Main Board Assy/Power Supply Board Assy
For this printer, so as to drive the CR Motor and PF Motor properly, the characteristics of them are stored in the Main Board Assy, and used to optimize the performance in
accordance with the Power Supply Board Assy. Therefore, when replacing the parts mentioned below, check if the motor characteristics label is attached on the motor, and make
sure to perform an appropriate measure for the concerning replacement.
Parts to replace
Power Supply Board Assy
Main Board Assy
(When parameter (NVRAM)
backup is failed.)
DISASSEMBLY & ASSEMBLY
Motor characteristic label
Presence of motor characteristics label
CR Motor PF Motor
Yes Yes
No No
Yes No
No Yes
Yes Yes
No No
Yes No
No Yes
Replace the Power Supply Board Assy only.
Replace the CR Motor and the PF Motor along with the Power Supply Board Assy.
After replacement, perform "CR/PF Motor Characteristics Writing".
Replace the PF Motor along with the Power Supply Board Assy.
After replacement, perform "PF Motor Characteristics Writing".
Replace the CR Motor along with the Power Supply Board Assy.
After replacement, perform "CR Motor Characteristics Writing".
Replace the Main Board Assy only.
After replacement, perform "CR/PF Motor Characteristics Writing".
Replace the CR Motor and the PF Motor along with the Main Board Assy.
After replacement, perform "CR/PF Motor Characteristics Writing".
Replace the PF Motor along with the Main Board Assy.
After replacement, perform "CR/PF Motor Characteristics Writing".
Replace the CR Motor along with the Power Supply Board Assy.
After replacement, perform "CR/PF Motor Characteristics Writing".
Overview
Measure
Revision I
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