thestig@chromium.org awscreen@chromium.org On Windows, the average size of a printed page after converting to EMF. Recorded after conversion. thestig@chromium.org awscreen@chromium.org On Windows, the average size of a printed page after converting to EMF with the reduced rasterization feature turned on. Recorded after conversion. thestig@chromium.org awscreen@chromium.org On Windows, the average size of a printed page after converting to level 2 PostScript. Recorded after conversion. thestig@chromium.org awscreen@chromium.org On Windows, the average size of a printed page after converting to level 3 PostScript. Recorded after conversion. thestig@chromium.org awscreen@chromium.org On Windows, the average size of a printed page after converting to level 3 PostScript with Type 42 fonts. Recorded after conversion. thestig@chromium.org awscreen@chromium.org On desktop, the average size of a printed page after converting to PWG Raster format. Recorded after conversion. bmgordon@chromium.org cros-printing-dev@chromium.org Records whether resolution of a .local address via mDNS was successful. The metric is recorded during attempted setup of a printer discovered via mDNS. pawliczek@chromium.org bmgordon@chromium.org project-bolton@google.com The success or error code for the Ipp Everywhere setup of a USB printer. The result is recorded only if all the following conditions are fulfilled: 1. The setup procedure was initiated automatically when a USB printer was physically connected to the device. 2. There is a matching PPD file that can be used to setup the printer. 3. The printer supports IPP over USB protocol. pawliczek@chromium.org bmgordon@chromium.org project-bolton@google.com The success or error code for the PPD-based setup of a USB printer. The result is recorded only if all the following conditions are fulfilled: 1. The setup procedure was initiated automatically when a USB printer was physically connected to the device. 2. There is a matching PPD file that can be used to setup the printer. 3. The printer supports IPP over USB protocol. skau@chromium.org pawliczek@chromium.org Records the highest IPP version reported by a printer when we query the printer for attributes. Useful to understand the population of printers currently used. Recorded during printer setup for IPP printers. Recorded only on ChromeOS. bmgordon@chromium.org cros-printing-dev@chromium.org Record if the request for IPP attributes was successful during printer setup. This only occurs for setup attempts of IPP and IPPS printers. Starting with M79, this is only recorded if the printer was reachable. Recorded when printers are queried for attributes in ChromeOS settings. bmgordon@chromium.org cros-printing-dev@chromium.org Record if the request for IPP attributes was successful in reaching the printer. Recorded during the attempt to setup IPP/IPPS printers. bmgordon@chromium.org project-bolton@google.com Records the print job duration of a cancelled print job. Includes time spent in a suspended or error state. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com Records the print job duration of a done/completed print job. Includes time spent in a suspended or error state. Only recorded on Chrome OS. bmgordon@chromium.org cros-printing-dev@chromium.org The final status of every print job that was succesfully queued. Only used on Chrome OS. Recorded upon the completion of each print job by the CupsPrintJobManager. pawliczek@chromium.org bmgordon@chromium.org project-bolton@google.com The final status of every print job that was succesfully queued for a USB printer that meets all of the following conditions: 1. The setup procedure of the printer was initiated automatically when the printer was physically connected to the device. 2. There is a matching PPD file that can be used to setup the printer. 3. The printer supports IPP over USB protocol. 4. The printer was setup in the first attempt. bmgordon@chromium.org project-bolton@google.com The number of detected network printers classified as Automatic, excluding Saved printers. Recorded when the user navigates to the OS Settings Printing page to set up printers. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com The number of detected network printers classified as Discovered, excluding Saved printers. Recorded when the user navigates to the OS Settings Printing page to set up printers. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com The number of detected network printers that have not been saved. Recorded when the user navigates to the OS Settings Printing page to set up printers. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com Records the total size of the printed document (PDF) sent to CUPS. Only recorded on Chrome OS. bmgordon@chromium.org src/chromeos/printing/OWNERS The protocol for a printer that was added. Used to track printer churn by protocol. Only on Chrome OS. nmuggli@google.com project-bolton@google.com Tracks when the printer edit dialog is opened and certain user interactions. Every time the dialog is opened, the first bucket will get incremented. Additional buckets will get incremented for specific actions, such as clicking the View PPD button. Therefore, the first bucket acts as the total number of potential events and subsequest buckets track how many times specific events occurred. Only on Chrome OS. bmgordon@chromium.org src/chromeos/printing/OWNERS The protocol for a printer that was removed. Used to track printer churn by protocol. Only on Chrome OS. bmgordon@chromium.org src/chromeos/printing/OWNERS The number of printers shown in the discovered printers dialog during printer set up. Only recorded on Chrome OS. bmgordon@chromium.org src/chromeos/printing/OWNERS The success or error code for the setup of a CUPS printer. Recorded when setup is attempted through the settings dialogs. Only recorded on Chrome OS. Printer setup results go into either this histogram or the Printing.CUPS.ZeroconfPrinterSetupResult histogram - not both. bmgordon@chromium.org cros-printing-dev@chromium.org The success or error code for the setup of a CUPS printer. Recorded when setup is attempted from the print preview dialog. Only recorded on Chrome OS. Printer setup results go into either this histogram or the Printing.CUPS.ZeroconfPrinterSetupResult.PrintPreview histogram - not both. gavinwill@chromium.org bmgordon@chromium.org src/chromeos/printing/OWNERS The success or error code for the setup of printers classified as "Discovered". Recorded when the user clicks the Setup button in OS Printer Settings when attempting to save a printer. Only recorded on Chrome OS. gavinwill@chromium.org cros-peripherals@google.com Records the success outcome of a printer status query to a local printer. gavinwill@chromium.org cros-peripherals@google.com Records the status reasons returned by a local printer from a printer status query. Each returned printer status request can contain multiple status reasons so summing these buckets will overcount the total # of status queries. gavinwill@chromium.org cros-peripherals@google.com Records the success outcome for a retried printer status query to an unreachable local printer. Only recorded for the retry attempt. The result for the first attempt is recorded by Printing.CUPS.PrinterStatusQueryResult. bmgordon@chromium.org cros-printing-dev@chromium.org Records the protocol for a selected printer in Chrome OS. Used to track usage of the various printer protocols. Since a selection occurs when print preview is opened, this will count at least one every time that happens if a CUPS printer was selected. gavinwill@chromium.org cros-peripherals@google.com Records the number of saved printers when the user launches or refreshes the OS Settings Printing page. gavinwill@chromium.org cros-peripherals@google.com Records the action a user takes on the OS Printer settings page. Replaced in M116 by Printing.CUPS.TotalNetworkPrintersCount.SettingsOpened bmgordon@chromium.org project-bolton@google.com The total number of detected network printers. Recorded when the user navigates to the OS Settings Printing page to set up printers. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com The total number of detected network printers. Recorded whenever the background running mDNS detector reports detected printers. The mDNS detector reports more often when printers are detected on the network, so the "0 printers" case might be underrepresented in this metric. Look to "Printing.CUPS.TotalNetworkPrintersCount2.SettingsOpened" for more accurate "0 printers" representation. Only recorded on Chrome OS. bmgordon@chromium.org project-bolton@google.com The total number of detected network printers. Recorded when the user navigates to the OS Settings Printing page to set up printers. Only recorded on Chrome OS. awscreen@chromium.org thestig@chromium.org Records instances in which print preview encounters an unknown PPD color model. Recorded after print settings are received from print preview. Note that this this histogram expired on 2021-02-01 and was extended on 2021-03-30. gavinwill@chromium.org cros-peripherals@google.com Records the source from which a USB printer was configured in Chrome OS. Used to track relative usage of the various printer setup routes. Only emits after a successful printer setup. kdlee@chromium.org cros-printing-dev@chromium.org The success or error code for the setup of a Zeroconf printer. Recorded when setup is attempted through the settings dialogs. Only recorded on Chrome OS. Printer setup results go into either this histogram or the Printing.CUPS.PrinterSetupResult histogram - not both. bmgordon@chromium.org cros-printing-dev@chromium.org The success or error code for the setup of a Zeroconf printer. Recorded when setup is attempted from the print preview dialog. Only recorded on Chrome OS. Printer setup results go into either this histogram or the Printing.CUPS.PrinterSetupResult.PrintPreview histogram - not both. awscreen@chromium.org thestig@chromium.org Records the final result of a print job where the interactions with the system printing APIs are performed out-of-process in the PrintBackend service. This covers printing initiated from Print Preview as well as from a system print dialog for platforms which provide that. Recorded upon completion of each print job by PrintJobWorkerOop. awscreen@chromium.org thestig@chromium.org Records if any printer driver operations were found to fail because of access-denied errors when used in a sandboxed utility process. This can occur from queries for setting up print preview as well as when printing a document to a destination. pawliczek@chromium.org bmgordon@chromium.org Records the number of print servers that must be queried according to policies. Only non-zero values are recorded. The histogram is emitted when ExternalPrintServers* policies are loaded and processed. It happens when a profile is opened or when one of the policies is modified.