Adjustment Items And Overview; Servicing Adjustment Item List - Epson Stylus C110 Service Manual

EPSON Stylus C110/C120/D120

5.1 Adjustment Items and Overview

This chapter describes adjustments required after the disassembly/reassembly of the
printer.

5.1.1 Servicing Adjustment Item List

The adjustment items of this product are as follows.
Adjustment Item
When the main board needs to be replaced, use this to copy
adjustment values stored on the old main board to the new board. If
EEPROM data copy
this copy is completed successfully, all the other adjustments required
after replacing the main board are no longer be necessary.
This must be carried out after replacing the main board to apply
Initial setting
settings for the target market.
This sets a USB ID of the printer. A computer identifies the printer by
USB ID input
the ID when multiple same models are connected via a USB hub.
This must be carried out after replacing the printhead in order to enter
Head ID input the new printhead ID (Head ID) that reduces variation between
printheads.
This corrects top margin of printout.
TOP margin adjustment
This corrects left margin of printout. The print start position in the
First dot position
carriage moving direction is corrected by software.
adjustment
This must be carried out after replacing the printhead in order to
Head angular adjustment
correct tilt of the printhead by software.
This corrects print start timing in bi-directional printing to improve
the print quality.
Bi-D adjustment
Initialize PF deterioration This resets the counter to maintain paper feed accuracy which
offset
decreases due to paper dust.
When reading the counter value from the old main board is impossible
Disenable PF deterioration
in the case of replacing the board, use this to set the counter to its
offset
maximum value.
ADJUSTMENT
Table 5-1. Adjustment Items
Purpose
Adjustment Items and Overview
For information on how to carry out the adjustments and media
C H E C K
required for the adjustments, see the instructions displayed by the
P O I N T
Adjustment Program.
Method Outline
Readout the EEPROM data from the main board before removing it.
Then replace the board with a new one, and load the EEPROM data to
the new board.
Select the target market. The selected market settings are
automatically written to the main board.
Enter the product serial number of the printer. The ID is automatically
generated and written to the main board.
Enter the ID printed on the Head QR code label attached on the
printhead. The correction values are automatically written to the main
board.
A top margin adjustment pattern is printed. Examine the lines printed
near the top edge of the printout, and enter the value for the line that is
exactly 3 mm away from the top edge.
A first dot adjustment pattern is printed. Examine the lines printed
near the left edge of the printout and enter the value for the line that is
exactly 5 mm away from the left edge.
A head angular adjustment pattern is printed. Examine the printed
lines and enter the value for the most straight lines.
A Bi-D adjustment pattern is printed. Black and color patterns are
printed for each of the five dot sizes (ECO, VSD1, VSD2, VSD3,
VSD4). So, there are 10 groups. Examine the patterns and enter the
value for the pattern with no gap and overlap for each mode.
Reset the counter to its default.
Set the counter to tis maximum value (10000).
Revision B
Tool
• Adjustment Program
• Adjustment Program
• Adjustment Program
• Adjustment Program
• Adjustment Program
• Ruler
• Adjustment Program
• Ruler
• Adjustment Program
• Adjustment Program
• Adjustment Program
• Adjustment Program
108