2.4.2 Timer and Counter
EEPROM LE93C46 (IC12) on the main board stores certain counter and timer values used for
controlling ink system operation.
2.4.2.1 Protect Counter
Protect counter A and Ink Amount Counter R values are stored in the EEPROM on the main
board, and while the printer is on, this data is saved in the RAM on the main board.
❏
Protect Counter A
This counter is used to manage the total amount of drained ink. If
the counter value is equal to or exceeds 51000, the printer indicates
an error on the control panel and maintenance is required. This
counter is incremented by the following every sequence. (Values
in parentheses ( ) mean only the color head. 1 point = 0.025 cc.)
1. Power On
(Micro):
40 steps
×
6 (5)
2 points
40 steps
×
10 (9)
3 points
40 steps
×
15 (12)
5 (4) points
2. CL 1:
3600 (4800) steps
16 (20) points
40 steps
×
12 absorption 4 points
3. CL 2:
720 steps
4 points
7800 (8200) steps
40 points
40 steps
×
12
4 points
4. CL 3:
40 steps
×
12
4 points
5. I/C Replacement:
8900 (14000) steps
48 (72) points
8900 (8800) steps
48 (44) points
40 steps
×
12
4 points
6. Fixed time
False Absorption:
Monochrome and CMY = 2
7. Power On
(Normal):
3600 (4800) steps
16 (20) points
40 steps
×
12
4 points
Note for Service
Also, protect counter A resets when:
1. The printer is shipped from the factory.
2. After the maintenance is performed.
(When the ink drain tank (ink-eject porous pad, part number 130) is replaced.)
Stylus Pro XL
Operating Principles
REV.-A
2-27
Summary of Contents for Stylus Pro XL
Page 1: ...EPSON COLOR INKJET PRINTER Stylus Pro XL SERVICE MANUAL EPSON 4004677 ...
Page 93: ...Rev A 5 i ...
Page 127: ...EPSON ...