Required Adjustments - Epson STYLUS Scan 2500 Service Manual

EPSON Stylus Scan 2500
The scanner mechanism requires no adjustment for any service operation
provided you closely follow the specifications in this manual and the
instructions in Chapter 4 "Disassembly and Assembly".

5.1 Required Adjustments

The Stylus Scan printer mechanism requires the adjustments shown in Table
5-1. Perform the necessary adjustment referring to the steps and figures
described throughout this chapter. Table 5-2 provides a list of necessary
adjustments and the conditions when they are required.
Table 5-1. List of Service Procedures That Require Adjustment
No. Content of Operation
1 Replacement of the printhead
2 Replacement of the main board
Replacement or Removal of the
3
Carriage Unit
4 Replace of the CR Motor
Replacement of the Printer
5
Mechanism
Adjustment
Adjustment Procedure
1. Perform Vh voltage writing
operation.
2. Perform initial ink charge.
3. Perform printhead angle adjustment.
4. Perform Bi-d Adjustment.
5. Reset ink counter.
1. Perform Vh voltage writing
operation.
2. Perform Bi-d adjustment.
1. Perform parallel adjustment.
2. Perform printhead angle adjustment.
3. Perform Bi-d adjustment.
4. Reset ink counter.
1. Perform Bi-d adjustment.
1. Perform Head Voltage ID Input.
2. Perform initial ink charge.
3. Perform Bi-d adjustment.
Required Adjustments
Table 5-2. List of Required Adjustments
No. Adjustment Item
T
1 Parallelism Adjustment
T
T
2 Initial Ink Charge
T
T
3 Head Voltage ID Input
Note) The values stored in this address are not
T
T
Printhead Angle
4
Adjustment
T
T
T
5 Bi-D Adjustment
T
T
T
6 Reset ink counter.
T
Table below shows the actions taken and required adjustments in the order to
be performed.
Revision A
Conditions
When you replace or remove the carriage or
carriage guide shaft.
When you move the parallelism adjustment
bushing.
When you replace or remove the printhead.
When you replace the printhead.
When you replace the main board.
erased by the EEPROM reset operation.
When you replace or remove the printhead.
When you move the printhead angle-adjust
lever.
When you replace or remove the carriage or
carriage guide shaft.
When you replace or remove the printhead.
When you replace the main board.
When you replace the CR Motor.
When you replace or remove the carriage or
carriage guide shaft.
When you replace the printhead.
When you replace or remove the carriage or
carriage guide shaft.
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