EPSON Stylus Pro 7400/7800/9400/9800 Revision B
Adjustment Overview 293
5.1 Overview
This chapter describes the Adjustment Program software utility and the adjustment
procedures required after repairing or replacing certain parts in the Stylus Pro 7400/
7800/9400/9800.
5.1.1 Precautions
Always observe the following cautions whenever make an adjustment on the printer.
5.1.2 Adjustment Workflow
See “5.1.3 Parts and Units that Require Adjustments” (p.293) to check whether the
part you repaired or replaced is included in the list. And, if it is, see “5.1.4 Required
Adjustments by Part or Unit” (p.294) to make sure what adjustments must be made. Be
sure to perform the all required adjustments in the specified order given in the table.
5.1.3 Parts and Units that Require Adjustments
The following parts and units require adjustments after they are repaired or replaced.
Note "*": Required adjustments after repairing or replacing the Main Board differs
according to whether parameters stored on the NVRAM can be backed up or
not.
C A U T I O N
Always refer to “5.1.4 Required Adjustments by Part or Unit”
(p.294) and make sure to perform all adjustments listed in the
table in the given order.
Always read and follow the precautions given in each section
that explains each adjustment. Ignoring the precautions can
result in malfunction of the printer.
No adjustment necessary
“5.7 Installing Firmware” (p.371)
See “Table 5-2. Required Adjustments
in the Order of Execution” (p.294) to
check the required adjustments and
the correct order to perform them.
NO
Is the part you repaired or replaced
included in “Table 5-1. Parts and
Units that Require Adjustments”
(p.293)?
YES
Update the firmware as necessary.
“5.6 Reset Counters” (p.367)
“5.5 Check Results” (p.362)
“5.4 Advanced Adjustment” (p.357)
“5.3 Basic Adjustment” (p.313)
“5.2 Mechanical Adjustment” (p.301)
Table 5-1. Parts and Units that Require Adjustments
Part or Unit Name (Disassembly/Reassembly reference page)
Main Board* (BOARD ASSY., MAIN (p.232))
Power Supply Board (P/S BOARD ASSY. (p.234))
Relay Board (BOARD ASSY., SUB (p.236))
Cleaning Unit (PUMP CAP ASSY. (p.284), CLEANER, HEAD, A, ASP (p.287), BOX
ASSY., FLUSHING (R, L) (p.288))
Pressure Pump Unit (PUMP ASSY., SUPPLY (p.291))
Printhead (p.267)
Damper (VALVE ASSY., HEAD; C (p.271))
Motor CR Motor (CR MOTOR ASSY. (p.243))
PF Motor (PF MOTOR ASSY. (p.255))
Sensor Paper Thickness Sensor (P Thick1 Sensor, P Thick2 Sensor (p.261))
Ink Mark Sensor (p.263)
CR Encoder Sensor (p.246)
Rear Sensor (P Rear Sensor (p.262))
PF Encoder Sensor (p.258)
Ink Cartridge Slot
(HOLDER ASSY., IC, RIGHT, HOLDER ASSY., IC, LEFT (p.275))
Cutter Solenoid (CUTTER SOLENOID ASSY. (p.248))
CR Timing Belt (CR BELT (p.240))