Counter; Protect Counter - Epson Stylus Pro Service Manual

Operating Principles

2.4.2 Counter

EEPROM LE93C46 (IC12) on the main board stores certain counter and timer values that are used for
controlling the ink system operation.

2.4.2.1 Protect Counter

The value of protect counter A is stored into the EEPROM on the main board, and while the printer is on, this
data is stored in the RAM on the main board.
n Protect counter A
Protect counter A is reset:
1. Upon shipment from the factory.
2. After maintenance is performed (when the ink drain tank is replaced).
2-24
This counter is used to manage the total amount of drained ink. If the
counter value is equal to or exceeds 40000, the printer indicates an error on
the control panel that maintenance is required.
Notes for Service
Stylus Pro Service Manual
Rev.A