Protect Counter - Epson STYLUS 4001968 Service Manual

Epson printer user manual

Table of Contents

800

STYLUS

2.4.2.4 Protect Counter

There are four protect counters to manage the amount of ink draining to the waste ink drain tank. The

value of these counters is stored in EEPROM on the main board upon power off.

Protect counter C

Rev. B

This counter is used to manage the total amount of drained ink. If the

counter value is equal to or exceeds 25000 (A 2 25000), the printer

indicates the error on the contiol panel and maintenance is required.

This counter prevents excessive ink drainage to the waste ink drain tank

by limiting the total number of the initial charge operations. If the

operation is selected when the counter value is equal to or exceeds 10

(B 2 10), the printer only performs the false charging operation.

This counter is used to prevent a continual initial charge operation. If the

operation is selected while the counter value is 1 (C=l), the printer only

performs the false charging operation.

This counter counts the amount of ink inside the cap.

Operating Principles

2-23

Table of Contents

Table of Contents

Stylus 800