stapelberg / airscan Goto Github PK
View Code? Open in Web Editor NEWGo package to scan paper documents 📄 from a scanner 🖨️ via the network 🕸️ using the Apple AirScan (eSCL) protocol.
License: Apache License 2.0
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dolanor-galaxy razodactyl mirrorfork danderson nenad gerifield windhooked tubit dogboy21 pookaboydunc omer-akbas markdrayton denysvitali dnwe meistert stnokott iq-scm perpixelairscan's Issues
Check if scanner support ADF in Duplex mode
Some printers are using an ADF in simplex mode, because they don't support duplex mode.
Setting the wrong option for duplex (or in the case of the CLI, having it set to true as a default) can cause some issues.
For example, in my "Canon MF642C/643C/644C" device (ADF, Simplex), starting a scan with duplex mode causes the scanner to crash, and the only way to get out of this mode is to... reboot the printer.
$ airscan1 -debug=true -host=Canon00000 -source=adf -duplex=true
# Truncated
2023/03/10 01:05:49 device "Canon MF642C/643C/644C" found in 150.795627ms
2023/03/10 01:05:53 http://Canon00000/eSCL/ScanJobs: unexpected HTTP status: got 500 Internal Server Error (), want 201
After this, the printer gets stuck in this view:
After "Cancel" is pressed, the printer remains stuck in this view:
The only way to get rid of that screen is to power off the device entirely (unplug it from the socket) and boot it again.
Device Information
Make: Canon
Model: MF642C/643C/644C
Version
Main Controller: 05.18
Boot ROM: 01.01
DCON: 02.01
Language: 01.13
(I have no clue on why the language has a version on its own)
Proposed fix
Check for the scanner capabilities before assuming it can perform a duplex scan :D
P.S: I hate printers.
panic: runtime error: invalid memory address or nil pointer dereference
me@host:~$ '/home/me/Downloads/go/bin/go' get github.com/stapelberg/airscan/cmd/airscan1
me@host:~$ '/home/me/Downloads/go/bin/go' install github.com/stapelberg/airscan/cmd/airscan1
me@host:~$ ./go/bin/airscan1
2020/08/16 14:35:07 finding device for 5s (use -timeout=0 for unlimited)
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x50 pc=0x7111fa]
goroutine 1 [running]:
github.com/stapelberg/airscan.NewClientForService(0x0, 0x0)
/home/me/go/src/github.com/stapelberg/airscan/airscan.go:333 +0x3a
main.(*airscanner).scan1(0xc0000de580, 0x0, 0x0)
/home/me/go/src/github.com/stapelberg/airscan/cmd/airscan1/airscan1.go:173 +0x52
main.airscan1(0x0, 0x0)
/home/me/go/src/github.com/stapelberg/airscan/cmd/airscan1/airscan1.go:155 +0x6e9
main.main()
/home/me/go/src/github.com/stapelberg/airscan/cmd/airscan1/airscan1.go:238 +0x25
This is my printer (I do not know whether it should be supported): HP LaserJet 200 colorMFP M276n. It is being advertised with Zeroconf as _scanner._tcp.
dug with compatible checking ?
Wonder how we determine if a printer is / is not compatible ?
Some white list ?
So it say its not compatible :
airscan1
2021/10/29 17:12:50 finding device for 5s (use -timeout=0 for unlimited)
2021/10/29 17:12:50 device "Brother MFC-L2710DW series" discovered (use -host="BRW90324B93B317")
2021/10/29 17:12:55 no compatible scanner found
Yet it works !
airscan1 -host BRW90324B93B317
2021/10/29 17:13:25 finding device for 5s (use -timeout=0 for unlimited)
2021/10/29 17:13:26 device "Brother MFC-L2710DW series" found in 301.239815ms
2021/10/29 17:13:32 wrote /tmp/page1.jpg (136163 bytes)
2021/10/29 17:13:33 scan done in 6.889450047s
set output folder ?
works on my printer first time.
Wondering if there is any possibility to control where it puts the documents ?
usb also possible
FOund here: https://openprinting.github.io/OpenPrinting-News-January-2020/#driverless-scanning
airscan SHOUD work over USB also via using https://github.com/OpenPrinting/ipp-usb
golang based :)
I dont have a USB cable to test it. If someone has the time to test out this it be cool.
colour mode support?
Q. would you be happy to review a small PR to add a cmdline parameter for the colour mode to pass through to the scanner?
e.g.,
-color_mode string
Color mode to scan using. One of BlackAndWhite1, Grayscale8 (default) or RGB24 (default "Grayscale8")
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