Problèmes de pignon

@Mp05
Welcome to the HP Support Community
 
To provide you with an accurate solution, I’ll need a few more details:
Have you tried changing any setting?
Are you facing this issue after an update?
 
However, follow the below steps the can resolve the issue.
 
Step 1: Turn on the Sprocket and check battery status
The Sprocket might have turned off or the battery might need to be charged. Use the HP sprocket app to check the battery status, and then adjust the Auto Off setting.

Press and hold the Power button to turn on the Sprocket, and then open the HP sprocket app.

Tap the Menu icon , and then tap sprocket.

Tap Manage Printers, make sure your Sprocket is selected, and then tap Printer Settings.

Under the Status section, locate Battery.

If the battery charge is 25% or higher, continue with these steps.

If the battery chage is 24% or lower, charge the battery for 30 minutes, and then continue with these steps.

Tap Auto Off to change when the Sprocket turns off, if necessary.

If the issue persists, continue to the next step.
 
Step 2: Make sure the Sprocket has photo paper in the input tray
Check the input tray and make sure photo paper is loaded.

Turn off the Sprocket, and then remove the paper cover.

Make sure to load Sprocket Photo Paper, up to 10 sheets, with the HP logos facing down.

Replace the paper cover, and then turn on the Sprocket.

If the issue persists, continue to the next step.
 
Step 3: Confirm Bluetooth is turned on and paired with your Sprocket
On your mobile device, make sure Bluetooth is turned on and paired with your Sprocket.

Turn on the Sprocket.

On your mobile device, open the HP sprocket app.

Tap the Menu icon , tap sprocket, and then tap Manage Printers.
A list of available Sprockets displays.

If your Sprocket displays: The Sprocket is connected.

If your Sprocket does not display: Tap Add New Printer, and then tap the name of your Sprocket.

If the issue persists, continue to the next step.
 
Step 4: Reset your mobile device and Sprocket
Reset your mobile device and Sprocket to clear any errors states.

Turn off your mobile device, and then turn it back on.

Turn on the Sprocket.

Locate the Reset button.

HP Sprocket Photo Printer: Insert a straight pin into the access point next to the micro-USB charging port, and then press the Resetbutton for 3 seconds. The Sprocket resets and turns off.

HP Sprocket 200 Printer: Remove the paper cover, and then use a narrow object, such as a pen or paperclip, to press and hold the Reset button for 3 seconds. The Sprocket resets and turns off.

HP Sprocket Plus Printer: Remove the paper cover, insert a straight pin into the access point next to the input tray, and then press the Reset button for 3 seconds. The Sprocket resets and turns off.

HP Sprocket 2-in-1: Remove the paper cover, insert a straight pin into the access point next to the input tray, and then press the Reset button for 3 seconds. The Sprocket resets and turns off.

Turn on the Sprocket.

If the issue persists, continue to the next step.
 
Step 5: Upgrade the Sprocket firmware
HP regularly releases firmware updates. Upgrading the Sprocket firmware might resolve the issue.

Make sure the Sprocket is on and your mobile device is connected to the Internet.

On your mobile device, open the HP sprocket app.

Tap the Menu icon , and then tap sprocket.

Tap Manage Printers, make sure your Sprocket is selected, and then tap Printer Settings.

Look for a firmware upgrade.

If a firmware upgrade displays, tap Get Firmware Upgrade, and then follow the on-screen prompts to complete the update.

If a firmware upgrade option does not display, the firmware is up-to-date.

USe this link: https://support.hp.com/us-en/product/hp-sprocket-200-printer-series/21625473/document/c06032913 For your reference.
 
Keep me posted, how it goes!
If the information I’ve provided was helpful, give us some reinforcement by clicking the Accepted Solution button, that’ll help us and others see that we’ve got the answers!
Have a great day!
Cheers:)