Epson MX-85 User Manual - Page 28

Paper empty, 4K memory full, Rev Chan pin 11 = Mark -V

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4.2. Paper empty The paper empty switch located beneath the platen will activate when the paper runs out. When activated, the following conditions will take place: Status - DTR pin 20 = Mark (-V) Rev Chan pin 11 = Mark (-V) Data Entry - Available until buffer full Indicators - "Paper Out" ON "Ready" OFF Buzzer - Sounds for 20 seconds Printing - Disabled NOTE: Buzzer will stop upon depression of LF or FF button. Both the paper empty and the low paper conditions call for replacement of the paper roll. This should be done with the power on to avoid losing any data. Upon completion of paper loading, the "On-Line" button should be depressed. This will activate printing if there are any printable characters stored in the memory. The "Paper-Out" indicator w&be extinguished and the "Ready" indicator illuminated if the MX-85 is not in a memory full condition. 4.3. 4K memory full When the buffer memory reaches 3,996 bytes, the following conditions will take place: Status - DTR pin 20 = Mark (-V) Rev Chan pin 11 = Mark (-V) Data Entry - Disabled Indicators - "Ready" OFF Printing - Enabled As soon as 1 K bytes of memory is made available, all of the above conditions will revert to normal. -23-

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4.2. Paper empty
The paper empty switch located beneath the platen will activate when the paper runs
out. When activated, the following conditions will take place:
Status - DTR pin 20 = Mark (-V)
Rev Chan pin 11 = Mark (-V)
Data Entry - Available until buffer full
Indicators -
“Paper Out” ON
"Ready” OFF
Buzzer - Sounds for 20 seconds
Printing - Disabled
NOTE:
Buzzer will stop upon depression of LF or FF button.
Both the paper empty and the low paper conditions call for replacement of the paper
roll. This should be done with the power on to avoid losing any data. Upon completion
of paper loading, the “On-Line” button should be depressed. This will activate
printing if there are any printable characters stored in the memory. The “Paper-Out”
indicator w&be extinguished and the “Ready” indicator illuminated if the MX-85 is
not in a memory full condition.
4.3. 4K memory full
When the buffer memory reaches 3,996 bytes, the following conditions will take
place:
Status - DTR pin 20 = Mark (-V)
Rev Chan pin 11 = Mark (-V)
Data Entry - Disabled
Indicators - “Ready” OFF
Printing - Enabled
As soon as 1 K bytes of memory is made available, all of
the above conditions will
revert to normal.
-23-