EPSON Stylus C82 Revision A
ADJUSTMENT Overview 45
Adjustment
(Cont.)
USB ID input Performed after main board replacement. (Not necessary if only main
board was replaced and Backup was successful.)
A unique ID is created by inputting the printer's serial number into the USB ID. This
prevents conflicts with ID of other connected USB devices.
1
st
dot position
adjustment
Performed after main board replacement or CR/CR Guide Shaft removal
(or mechanical disassembly in those areas).
Confirms and adjusts suitable position for first printing at top of paper.
CR motor drive
dispersion
1. CR motor heat control correction max value registered in EEPROM
after CR motor, PS board and Main board replacement. (Not
necessary if only main board was replaced and Backup was
successful.)
2. Suitable heat control correction value for starting CR motor drive
dispersion sequence registered after CR guide shaft removal/
replacement.
Calculated by converting the mechanism load from current flowing to CR motor. By
precisely calculating CR motor heat timing based on this data and registering it in
EEPROM, safeguard operation timing is optimized for continuous operation of CR.
To prevent motor coil burn damage, adjustment is necessary after corresponding part
replacement.
PG Adjustment 1. Performed after mechanism replacement.
2. Performed after carriage or carriage guide shaft removal/replacement.
Ensures correct distance between head surface and paper guide and adjusts
parallelism at 0 character side and 80 character side to stabilize print quality.
Check pattern
printing
A4 normal paper
printing
1. Used for first operation check with recycled parts.
2. Used to switch to adjustment for checking correct printing after ink
charging following printhead replacement.
3. Used for print check after completed repairs.
This function checks printing in each print mode and confirms absence of printing
problems. Check points for each print pattern are explained in the adjustment
program.
Maintenance Head cleaning Dot missing generated - 1 Always starts strongest cleaning cycle from among cleaning types supported by
Stylus C82.
1. Used to perform cleaning when dot missing occurs with A4 normal paper printing
during adjustment or after ink charge.
2. Use during recovery of main functions when recycled parts generate simple
instance of dot missing.
Ink charge Dot missing generated - 2 Used for recovery of ink absorption at same level of initial ink charge for dot missing
not recoverable by head cleaning described above.
Ink charge for Jig Supplies ink from special ink pack without using ink cartridge and
performs adjustment.
Ink is absorbed from a specialized ink pack at the factory through a special schedule
ink supply jig. Used when performing continuous adjustments. Suitable for full-
service repair centers.
Refurbishment Used when performing refurbishment operation. Used to fill the printhead with special shipping fluid at the factory through a special
schedule shipping fluid substitution jig. This function is necessary for performance of
refurbishment (new part recycling) at full-service repair centers.
Protection counter Clears counter value to 0 when a maintenance error is generated or
replacing the waste fluid pad.
Same as left.
Appendix EEPROM Data Used when analyzing. Same as left.
Table 5-1. Adjustment Program Supported Functions
Category Items Conditions Purpose
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