Figure 5-20 The Printhead Maintenance Cycle - Tektronix Phaser 340 Service Manual

5
Theory of Operation
5-32 Phaser 340 Color Printer
Following the second flush, the printhead is tilted back and the
cap/wipe/purge assembly is lowered into its standby position. A
cap/wipe/purge sensor on I/O board 2 detects when the cap/wipe/purge
assembly is stored in its standby position. Then the printhead is tilted forward
into its print position and a "flush" page is printed. The flush page allows each
jet to eject ink that may be slightly contaminated with another ink.
Cap/wipe/purge
assembly
Purge
Wipe
Flush
Dab

Figure 5-20 The printhead maintenance cycle

Printhead faceplate
Air
Vacuum
valve
accumulator
Vacuum
pump
Wiper
blade
9100-29