Epson Stylus Color 800, Руководство по обслуживанию

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EPSON Stylus
&2/25
800
Rev. A
1-14
The ERROR signal is at a LOW level when one of the following errors has occurred:
‰
Printer hardware error (fatal error)
‰
Paper-out error
‰
Paper-jam error
‰
Ink-out error
The PE signal is HIGH during a paper-out error.
‰
Data Transmission Timing (Forward Channel)
Table 1-15. Data Transmission Timing
Parameter Minimum Maximum
tsetup 500 ns —
thold 500 ns —
tstb 500 ns —
tready 0 —
tbusy — 500 ns
tt-out — 120 ns
tt-in — 200 ns
treply — —
tack 500 ns 10 µs
tnbusy 0 —
tnext 0 —
Note: tt-out shows the rise and fall time of every output signal.
tt-in shows the rise and fall time of every input signal.
treply
tack tnbusy
tnext
tstb
tsetup
thold
data byte n data byte n+1
BUSY
ACKNLG
DATA
STROBE
Figure 1- 6. Data Transmission Timing