Epson Stylus Pro 4800 Portrait Edition, Service Manual

Page: 367 / 506

EPSON Stylus Pro 4400/4450/4800/4880/4880C Revision C
Adjustment Overview 367
5.1 Overview
This section describes the adjustment procedures necessary after replacing
certain parts and explains how to perform those adjustment procedures.
5.1.1 Cautions
Before beginning the adjustment operation, be sure to confirm the following
caution items.
5.1.2 Advance of Adjustment
When replacing or removing any part/unit listed in "5.1.3 The Part/Unit that
Requires Adjustment" , refer to "5.1.4 Adjustment Items classified by Part/Unit"
and perform required operations in proper order without omitting steps.
5.1.3 The Part/Unit that Requires Adjustment
Parts/units that require adjustment after being replaced or removed are shown
in the table below.
Note"*": Adjustment items vary depending on whether NVRAM parameters
can be backed up or not.
C A U T I O N
„
When performing an adjustment, refer to
"5.1.4 Adjustment Items classified by Part/Unit" and
check the corresponding adjustment items and
execution order.
„
When performing adjustments, thoroughly check the
cautions shown for the explanation section of each
adjustment item. Product operations and functions can
be adversely effected if the adjustment operations are
performed improperly.
No adjustments necessary
“5.3 Basic Adjustment (p387)”
“5.5 Check Results (p436)”
“5.6 Reset Counters (p441)”
“5.7 Installing Firmware (p444)”
Refer to the required adjustment
items and adjustment order
presented in
"Table 5-2. Required
Adjustment Items/Execution
Order"
NO
Is the replaced or removed part/
unit listed in
"Table 5-1. The Part/
Unit that is required Adjustment" ?
YES
“5.2 Mechanical Adjustment (p376)”
Update to latest firmware when necessary
“5.4 Advanced Adjustment (p430)”
Table 5-1. The Part/Unit that is required Adjustment
Repair Items (Disassembly/Reassembly Reference Page)
Main Circuit Board*1 (C593 MAIN Board (p226) )
Power Supply Board ( p.233 )
Cleaning Unit*2 (p.316)
Printhead (p285)
Damper (Valve Assy., Head (p.291) )
AS Mechanical Unit (Printer Mechanism (SP) (p.242) )
ASF Unit (p.246)
Motor Motor Assy., CR (p270)
Motor Assy., PF (p349)
Pump Motor (Mounting Plate Assy., Motor, ASF, SP ( p.259 ))
Motor Assy., PG (p274)
Sensor Paper Thickness Sensor
(P_THICK Sensor (0.8) / P_THICK Sensor (0.3)
(p351) )
Multi Sensor (p277)
CR Encoder Sensor (p280)
Rear Sensor (PE Sensor (p352) )
PF Encoder Sensor (p357)