Table Of Contents - Centronics 101AL Technical Manual

TABLE OF CONTENTS (cont'd)
Section Page
4.4 DATA INPUT. ........... ee ee e w w e ee ew 4-6
4.4.1 Data Input Timing. ........2.2.2.2.208080c86-.8 4~6
4.4.2 Busy... 2 . 2 . 2 . ew e w ew w e ww t e ww he we 4-9
4.4.3. Function Decoder .........6-6246464654c84e88 4-10
4.5 SHIFT REGISTER (BUFFER). ..... be ww ee t w tw we 4-12
4.6 CHARACTER PRINTING. ....... 22. 2 0 ee ee w e ee 4-14
4.6.1 Initializing the Printing Operation. ....... 4-14
4.6.2 Character Registration and Timing. ........ 4-15
4.6.3 Character Generator (ROM). .........2... 4-18
4.6.4 Print Head Operation. .......24646404688-8 4-20
4.6.5 Power Driver Circuits. . ...... 2 6 2 ee eee 4-21
4.7 PAPER MOVEMENT... 2 . 2 . 2 2 ee e w ee ew w e ee w e w e ee 4-24
4.7.1 Line Feed... ... 1 . 2 1 ew we ew tw ww 4-25
4.7.2 Form Feed. ...... 2 . 1 e o ee e w e w e w e w e w ww 4-26
4.7.3 Vertical Tab. .........0242484 00 ee ee 4-27
4.7.4 Wertical Format Unit. .......2.0.60464208-8 4-28
4.7.5 Line Feed Solenoid Driver. .........e6.6-. 4-29
4.8 SPECIAL FUNCTIONS. ... . 2... 1 ee ww e w e w et te 4-30
4.8.1 Bell (Optional). ........ 06.6.6 2 ee eee 4-30
4.8.2 Delete... .. 1 . 1 ew e w we e w e w w e tt te 4-30
4.8.3. Paper Empty. ........ 505656 0 « © w e ee eee 4-3]
4.8.4 Motor Control (Optional) ..........0.e-. 4-31
4.9 POWER SUPPLIES ........ 2 . © © © we ee we e w ws 4-34
4.9.1 +5V Regulator. .......4.2.2.66.26c86858484 0848 4-36
4.9.2 +12V and -12V Regulators ..........e8e8- 4-37
4.9.3. +35V Power Supply, Unregulated ........... 4-37
4.10 OUTPUTS FROM LSI CHIPS .......... 0404248488088 4-38
4.10.1 Outputs from LSI Chip ME5......2.2.2.2.4.2... 4-38
4.10.2 LSI Chip ME9...........0 2628 2 we eee 4-4)
i1 Rev. A